High Temperature

The AD5600 is a single channel, 16-bit resolution, voltage output digital-to-analog converter (DAC) designed for high temperature operation.

The AD5600 guarantees 16-bit monotonicity over the specified temperature range and operates from a single 2.7 V to 5.5 V voltage supply.

For space constrained applications, the AD5600 is available in a 10-lead MSOP with operation specified from −55°C to +175°C. This package is designed for robustness at extreme temperatures, including monometallic wire bonding, and is qualified for up to 1000 hours of operation at the maximum temperature rating.

The AD5600 uses a versatile 3-wire serial peripheral interface (SPI) that is compatible with 50 MHz SPI, QSPI™, MICROWIRE™, and DSP interface standards.

The AD5600 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection of available high temperature products, see the high temperature product list and qualification data available at www.analog.com/hightemp. 

Applications

• Downhole drilling and instrumentation
• Heavy industrial
• High temperature environments

The AD7981 is a 16-bit, successive approximation, PulSAR^® analog-to-digital converter (ADC) designed for high temperature operation. The AD7981 is capable of sample rates of up to 600 kSPS while maintaining low power consumption from a single power supply, VDD. It is a fast throughput, high accuracy, high temperature, successive approximation register (SAR) ADC, packaged in a small form factor with a versatile serial port interface (SPI).

On the CNV rising edge, the AD7981 samples an analog input, IN+, between 0 V and REF with respect to a ground sense, IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. The device power scales linearly with throughput.

The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply, VIO.

For space constrained applications, the AD7981 is available in a 10-lead mini small outline package (MSOP) with operation speci-fied from −55°C to +175°C and 10-lead ceramic flat package (FLATPACK) with operation specified from −55°C to +210°C. These packages are designed for robustness at extreme temperatures, including monometallic wire bonding, and are qualified for up to 1000 hours of operation at the maximum temperature rating.

The AD7981 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection of available high temperature products, see the high temperature product list and qualification data available at www.analog.com/hightemp.

Applications

• Oil and gas exploration
• Avionics
• Heavy industrial
• High temperature environments
• Scientific instrumentation

The AD8229 is an ultralow noise instrumentation amplifier designed for measuring small signals in the presence of large common-mode voltages and high temperatures.

The AD8229 has been designed for high temperature operation. The process is dielectrically isolated to avoid leakage currents at high temperatures. The design architecture was chosen to compensate for the low V

The AD8229 excels at measuring tiny signals. It delivers industry leading 1 nV/√Hz input noise performance. The high CMRR of the AD8229 prevents unwanted signals from corrupting the acquisition. The CMRR increases as the gain increases, offering high rejection when it is most needed.

The AD8229 is one of the fastest instrumentation amplifiers available. Its current feedback architecture provides high bandwidth at high gain, for example, 1.2 MHz at G = 100. The design includes circuitry to improve settling time after large input voltage transients. The AD8229 was designed for excellent distortion performance, allowing use in demanding applications such as vibration analysis.

Gain is set from 1 to 1000 with a single resistor. A reference pin allows the user to offset the output voltage. This feature can be useful when interfacing with analog-to-digital converters.

For the most demanding applications, the AD8229 is available in an 8-lead side-brazed ceramic dual in-line package (SBDIP). For space-constrained applications, the AD8229 is available in an 8-lead plastic standard small outline package (SOIC).

The AD8229 is also available as Known Good Die

• Down-hole instrumentation
• Harsh environment data acquisition
• Exhaust gas measurements
• Vibration analysis

The AD8634 is well suited for applications that require both ac and dc precision performance. The combination of wide bandwidth, low noise, and precision makes the AD8634 useful in a wide variety of applications, including filters and interfacing with a variety of sensors.

This dual-channel op amp is offered in an 8-lead SOIC package with an operating temperature range of −40°C to +175°C. It is also available in an 8-lead ceramic flat package (FLATPACK) with an operating temperature range of −40°C to +210°C. Both packages are designed for robustness at extreme temperatures and are qualified for up to 1000 hours of operation at the maximum temperature rating.

The AD8634 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection table of available high temperature products, see the high temperature product list and qualification data available at www.analog.com/hightemp.

APPLICATIONS

• Down-hole drilling and instrumentation
• Avionics
• Heavy industrial
• High temperature environments

The ADG5298 is a latch-up proof, monolithic, complementary metal-oxide semiconductor (CMOS) analog multiplexer designed for operation up to 210°C. The ADG5298 switches one of eight inputs to a common output, as determined by the 3-bit binary address lines, A0, A1, and A2.

An EN input enables or disables the device. When EN is disabled, all channels switch off. The ultralow capacitance and charge injection of this switch makes it an ideal solution for data acquisition and sample-and-hold applications, where low glitch and fast settling are required.

The switch conducts equally well in both directions when on, and it has an input signal range that extends to the power supplies. In the off condition, signal levels up to the supplies are blocked. This multiplexer is available in a 16-lead ceramic flat package (FLATPACK) and a 16-lead ceramic flat package with reverse formed gullwing leads (FLATPACK_RF). Both packages are designed for robustness at extreme temperatures and are qualified for up to 1000 hours of operation at the maximum temperature rating.

The ADG5298 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection table of available high temperature products, see the high temperature product list and qualification data available at www.analog.com/hightemp.

Product Highlights

1. Trench Isolation Guards Against Latch-Up and Minimizes Parasitic Leakage.
   A dielectric trench separates the P channel and N channel transistors to prevent latch-up even under severe overvoltage conditions.
2. Achieved JESD78D Class II rating.
   The ADG5298 was stressed to ±500 mA with a 10 ms pulse at the maximum temperature of the device (210°C).
3. 0.2 pC Charge Injection.
4. Dual-Supply Operation.
   For applications where the analog signal is bipolar, the ADG5298 can operate from dual supplies of up to ±22 V.
5. Single-Supply Operation.
   For applications where the analog signal is unipolar, the ADG5298 can operate from a single rail power supply of up to 40 V.
6. 3 V Logic-Compatible Digital Inputs.
   V_INH = 2.0 V, V_INL = 0.8 V.
7. No V_L Logic Power Supply Required.

Applications

• Downhole drilling and instrumentation
• Avionics
• Heavy industrial
• High temperature environments

The ADG798 is a low voltage, CMOS, analog multiplexer designed to operate at very high temperatures up to 210°C. The ADG798 switches one of eight inputs (S1 to S8) to a common output, D, as determined by the 3-bit binary address lines A0, A1, and A2. An EN input on the device is used to enable or disable the device. When the device is disabled, all channels are switched off.

The ADG798 features low power consumption and a 3.3 V to 5.5 V operating supply range. All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels. These switches are designed with an enhanced submicron process that provides low power dissipation, high switching speed and very low on resistance.

The on resistance (R_ON) is a maximum of 10 Ω and is closely matched between switches and very flat over the full signal range. The ADG798 operates equally well as either a multiplexer or a demultiplexer and has an input signal range that extends to the supplies.

This mux is available in a 16-lead ceramic flat package (FLATPACK) and a 16-lead ceramic flat package with reverse formed gullwing leads (FLATPACK_RF). Both of the flat packages have an operating temperature range of −55°C to +210°C. A 16-lead TSSOP package is also available that has an operating temperature range of −55°C to +175°C. All packages are designed for robustness at extreme temperatures, and are qualified for 1000 hours of continuous operation at the maximum temperature rating.

The ADG798 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection table of available high temperature products, see the high temperature product list and qualification data available at http://www.analog.com/hightemp.

Product Highlight

1. Single-/Dual-Supply Operation.
   The ADG798 is fully specified and guaranteed with 3.3 V and 5 V single-supply rails and ±2.5 V dual-supply rails.
2. Low R_ON.
   The R_ON of the ADG798 is specified at 5 Ω typical at 210°C.
3. Low power consumption.
   The power consumption of the ADG798 is specified at <0.01 μW.
4.  Guaranteed Break-Before-Make Switching Action.

Applications

• Downhole drilling and instrumentation
• Avionics
• Heavy industrial
• High temperature environments

The ADR225 is a precision 2.5 V band gap voltage reference specified for a high temperature operation of 175°C and 210°C. It uses a micropower core topology and laser trimming of highly stable, thin film resistors to achieve a temperature coefficient of 30 ppm/°C (maximum) up to 175°C and an initial accuracy of 0.4% (±10 mV maximum). A maximum operating current of 50 µA and a low dropout voltage allow the ADR225 to function very well in battery-powered equipment.

The ADR225 voltage reference is offered in an 8-lead SOIC package with an operating temperature range of −40°C to +175°C.

It is also available in an 8-lead ceramic flat pack (FLATPACK) with an operating temperature range of −40°C to +210°C. Both devices are designed for robustness at extreme temperatures and are qualified for 1000 hours of operation at the maximum temperature rating.

The ADR225 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection table of the available high temperature products, see the high temperature product list and qualification data available at www.analog.com/hightemp.

Applications

• Down-hole drilling and instrumentation
• Avionics
• Heavy industrial
• High temperature environments

The ADT7312 is a ±1°C accurate digital temperature sensor that operates over a very wide temperature range, −55°C to +175°C available in die form only. It contains an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0078°C. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.

The ADT7312 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. At 3.6 V operation, the average supply current is typically 245 μA. The ADT7312 has a shutdown mode that powers down the device, resulting in a typical shutdown current of 2.5 μA at 3.6 V. The ADT7312 is rated for operation over the −55°C to +175°C temperature range.

The ADXL206 is a precision, low power, complete dual-axis iMEMS^® accelerometer for use in high temperature environments.

The accelerometer integrates the sensor with signal conditioned voltage outputs on a single, monolithic IC. The ADXL206 measures acceleration with a full-scale range of ±5 g. The ADXL206 can measure both dynamic acceleration (for example, vibration) and static acceleration (for example, gravity).

The typical noise floor is 110 μg/√Hz, allowing signals below 1 mg (0.06° of inclination) to be resolved in tilt sensing applications using narrow bandwidths (<60 Hz).

The user selects the bandwidth of the accelerometer using Capacitors C_X and C_Y at the X_OUT and Y_OUT pins, respectively. Bandwidths of 0.5 Hz to 2.5 kHz can be selected to suit the application.

The ADXL206 is available in a 13 mm × 8 mm × 2 mm, 8-lead, side-brazed ceramic dual in-line package (SBDIP).

APPLICATIONS

• Geological exploration tilt and vibration measurement
• Extreme high temperature industrial products

Applications

• Down hole measurements for geological exploration
• Extreme high temperature industrial applications
• Severe mechanical environments

The LT6203X is a dual low noise, rail-to-rail input and output unity gain stable op amp that features 1.9nV/√Hz noise voltage and draws only 2.5mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 100MHz gain bandwidth product, a 25V/µs slew rate, and are optimized for low supply signal conditioning systems.

These amplifiers maintain their performance for supplies from 2.5V to 12.6V and are specified at 3V, 5V and ±5V supplies. Harmonic distortion is less than –80dBc at 1MHz making these amplifiers suitable in low power data acquisition systems.

These devices can be used as plug-in replacements for many op amps to improve input/output range and noise performance.

The LT6203X is a member or a growing series of high temperature qualified products offered by Analog Devices.

The LT6203X comes in an 8-pin SO package with standard dual op amp pinout. The LT6203X is also available as dice.

Applications

• Down Hole Drilling and Instrumentation
• Heavy Industrial
• Avionics
• High Temperature Environments
• Low Noise, Low Power Signal Processing
• Active Filters
• Rail-to-Rail Buffer Amplifiers
• Driving A/D Converters
• DSL Receivers
• Battery Powered/Battery Backed Equipment

The LT8610AX is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator rated to 175°C junction temperature. The LT8610AX is 100% tested a 175°C. Top and bottom power switches are included with all necessary circuitry to minimize the need for external components. Low ripple Burst Mode operation enables high efficiency across a wide range of output currents while keeping the output ripple low. A SYNC pin allows synchronization to an external clock. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program V_IN undervoltage lockout or to shut down the LT8610AX. A capacitor on the TR/SS pin programs the output voltage ramp rate during startup while the PG flag signals when V_OUT is within ±9% of the programmed output voltage as well as fault conditions. The LT8610AX is available in small 16-lead MSOP package with exposed pad for low thermal resistance.

Applications

• Oil and Gas Exploration

LTC1871X is a wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET. LTC1871X is rated to 175°C junction temperature and is 100% tested at 175°C. Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency.

The IC’s operating frequency can be set with an external resistor over a 65kHz to 900kHz range, and can be synchronized to an external clock using the MODE/SYNC pin. Burst Mode operation at light loads, a low minimum operating supply voltage of 2.5V and a low shutdown quiescent current of 10μA make the LTC1871X ideally suited for battery-operated systems.

For applications requiring constant frequency operation, Burst Mode operation can be defeated using the MODE/SYNC pin. Higher output voltage boost, SEPIC and flyback applications are possible with the LTC1871X by connecting the SENSE pin to a resistor in the source of the power MOSFET. The LTC1871X is available in the 10-lead MSOP package.

Applications

• Telecom Power Supplies
• Portable Electronic Equipment

The LTC2879X is a rugged RS485/RS422 transceiver designed to operate over a wide temperature range of –55°C to 175°C. Special processing steps are used to prevent intermetallic growth that can cause metal voids on standard parts operating at high temperatures. Lowdrift, low-leakage circuitry and lack of a thermal shutdown circuit allow the LTC2879X to meet critical specifications, tested 100% at 175°C.

The LTC2879X also meets the specifications for PROFIBUS-DP (IEC 61158-2) supporting all data rates from 9.6kbps to 12Mbps.

The LTC2879X is exceptionally robust, tolerating ±60V faults on the bus pins and protected to ±52kV ESD. These devices are suitable for harsh environments or where 24V power might be inadvertently connected. Extended ±25V input common mode operating range and full failsafe operation improve data communication reliability in noisy systems.

The LTC2879X meets RS485, RS422, and PROFIBUS-DP specifications with a supply voltage of 4.5V to 5.5V with full RS485/RS422 compatibility down to 3V.

Applications

• Oil and Gas Exploration
• High Temperature Industrial Control
• PROFIBUS-DP
• Military Systems
• Harsh Environments