Overview
The AD8293G160ARJZ-R7, produced by Analog Devices Inc., is a precision instrumentation amplifier designed for high accuracy and low noise applications. This amplifier is part of the AD8293G series, which includes fixed-gain models ideal for precision instrumentation, position and pressure sensors, medical instrumentation, and strain gauge amplifiers. The device is known for its low offset voltage, low offset drift, and high common-mode rejection, making it suitable for applications where error sources must be minimized.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V |
| Operating Temperature Range | -40°C to +85°C |
| Input Offset Voltage | 20 μV (maximum) |
| Offset Voltage Drift | 0.3 μV/°C (maximum) |
| Gain Drift | 25 ppm/°C (maximum) |
| Common Mode Rejection Ratio (CMRR) | 140 dB (typical) |
| Voltage Noise | 0.7 μV p-p (0.01 Hz to 10 Hz) |
| Supply Current | 1.0 mA to 1.3 mA |
| Output Type | Rail-to-Rail |
| Package Type | 8-lead SOT-23 |
Key Features
- Small package: 8-lead SOT-23, reducing board size and increasing channel density.
- Reduced component count: Incorporates gain resistors and filter resistors, minimizing external components.
- Low offset voltage and drift: Ensures high accuracy and stability.
- Low gain drift: 25 ppm/°C maximum.
- High CMRR: 140 dB typical, enhancing noise rejection.
- Low noise: 0.7 μV p-p from 0.01 Hz to 10 Hz.
- Single-supply operation: Compatible with a wide range of supply voltages from 1.8 V to 5.5 V.
- Rail-to-rail output: Maximizes the dynamic range of the output signal.
- Buffered reference: Eliminates the need for an additional op-amp to set the reference voltage to mid-supply.
Applications
- Precision instrumentation: Ideal for applications requiring high accuracy and low noise.
- Position and pressure sensors: Benefits from the low noise and high CMRR.
- Medical instrumentation: Suitable for medical devices that require precise signal amplification.
- Strain gauge amplifiers: Optimized for strain gauge applications with low input bias current and high CMRR.
Q & A
- What is the supply voltage range of the AD8293G160ARJZ-R7?
The supply voltage range is from 1.8 V to 5.5 V. - What is the operating temperature range of this amplifier?
The operating temperature range is from -40°C to +85°C. - What is the maximum input offset voltage of the AD8293G160ARJZ-R7?
The maximum input offset voltage is 20 μV. - How much does the offset voltage drift with temperature?
The offset voltage drift is 0.3 μV/°C maximum. - What is the common-mode rejection ratio (CMRR) of this amplifier?
The CMRR is 140 dB typical. - What is the voltage noise of the AD8293G160ARJZ-R7?
The voltage noise is 0.7 μV p-p from 0.01 Hz to 10 Hz. - What type of output does the AD8293G160ARJZ-R7 have?
The output is rail-to-rail. - What is the package type of the AD8293G160ARJZ-R7?
The package type is an 8-lead SOT-23. - What are some typical applications of the AD8293G160ARJZ-R7?
Typical applications include precision instrumentation, position and pressure sensors, medical instrumentation, and strain gauge amplifiers. - Does the AD8293G160ARJZ-R7 require external gain resistors?
No, it incorporates gain resistors and filter resistors internally.
