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XTR100

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Product details

Vs (min) (V) 1.7 Vs (max) (V) 5.5 Offset voltage drift (±) (max) (µV/°C) 0.05 Offset voltage (±) (max) (mV) 0.03 Product type 2-wire General purpose Operating temperature range (°C) -40 to 125 Rating Catalog
Vs (min) (V) 1.7 Vs (max) (V) 5.5 Offset voltage drift (±) (max) (µV/°C) 0.05 Offset voltage (±) (max) (mV) 0.03 Product type 2-wire General purpose Operating temperature range (°C) -40 to 125 Rating Catalog
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • Ultra-low offset voltage: ±30µV (maximum)
  • Zero drift: ±0.05µV/°C (maximum)
  • Low noise: 40nV√Hz at 1kHz
  • No 1/f noise: 1µVPP (0.1Hz to 10Hz)
  • Gain bandwidth product: 1MHz
  • Slew rate: 0.4V/µs
  • Quiescent current (maximum at 25°C):
    • 45µA (XTR100, XTR102)
    • 80uA (XTR120)
  • Single supply: 1.7V to 5.5V
  • Integrated matched resistors: Ri = 40kΩ, R1 = 10kΩ
  • Resistor matching error: 0.02% (maximum)
  • Resistor matching tempco: 2ppm/°C (maximum)
  • Integrated HART resistor: RH = 480kΩ (XTR102 and XTR120)
  • XTR100 in 6-pin package compatible with 5-pin SOT-23 op amp pinout
  • Second low-power op amp (XTR120)
  • Ultra-low offset voltage: ±30µV (maximum)
  • Zero drift: ±0.05µV/°C (maximum)
  • Low noise: 40nV√Hz at 1kHz
  • No 1/f noise: 1µVPP (0.1Hz to 10Hz)
  • Gain bandwidth product: 1MHz
  • Slew rate: 0.4V/µs
  • Quiescent current (maximum at 25°C):
    • 45µA (XTR100, XTR102)
    • 80uA (XTR120)
  • Single supply: 1.7V to 5.5V
  • Integrated matched resistors: Ri = 40kΩ, R1 = 10kΩ
  • Resistor matching error: 0.02% (maximum)
  • Resistor matching tempco: 2ppm/°C (maximum)
  • Integrated HART resistor: RH = 480kΩ (XTR102 and XTR120)
  • XTR100 in 6-pin package compatible with 5-pin SOT-23 op amp pinout
  • Second low-power op amp (XTR120)

The XTR100, XTR102, and XTR120 (XTR1xx) family is a family of precision amplifiers with integrated highly-matched scaling resistors, making the devices an excellent choice to implement a precision 2-wire 4-to-20mA transmitter driver. The amplifier is optimized for low-power high precision applications, with zero-drift technology resulting in unparalleled offset voltage, and offset drift. With an ultra-low 40µA of typical quiescent current, the XTR1xx achieves 1.0MHz of bandwidth, a broadband noise of 40nV/√Hz, and integrated 1/f noise of 1µVPP. XTR1xx operates with supply voltages down to 1.7V, enabling low-voltage applications. XTR1xx integrates a highly-matched dual resistor of 40kΩ and 10kΩ, creating an ultra-precise ratio of 4:1 with 0.02% maximum tolerance, and ±2ppm/°C drift. XTR100 comes in a 6-pin DBV package compatible with common 5-pin SOT-23. XTR102 adds an extra input for HART signal. XTR120 is a super-set of XTR102 with a second zero-drift precision amplifier that can be used to actively filter PWM signals.

The XTR100, XTR102, and XTR120 (XTR1xx) family is a family of precision amplifiers with integrated highly-matched scaling resistors, making the devices an excellent choice to implement a precision 2-wire 4-to-20mA transmitter driver. The amplifier is optimized for low-power high precision applications, with zero-drift technology resulting in unparalleled offset voltage, and offset drift. With an ultra-low 40µA of typical quiescent current, the XTR1xx achieves 1.0MHz of bandwidth, a broadband noise of 40nV/√Hz, and integrated 1/f noise of 1µVPP. XTR1xx operates with supply voltages down to 1.7V, enabling low-voltage applications. XTR1xx integrates a highly-matched dual resistor of 40kΩ and 10kΩ, creating an ultra-precise ratio of 4:1 with 0.02% maximum tolerance, and ±2ppm/°C drift. XTR100 comes in a 6-pin DBV package compatible with common 5-pin SOT-23. XTR102 adds an extra input for HART signal. XTR120 is a super-set of XTR102 with a second zero-drift precision amplifier that can be used to actively filter PWM signals.

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* Data sheet XTR1xx 4mA – 20mA, Micropower Signal Conditioners With Highly-Matched Resistors, HART, and PWM Compatibility datasheet PDF | HTML Sep 28, 2026

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