Overview
The AD8222HBCPZ-R7, produced by Analog Devices Inc., is a high-performance, dual-channel instrumentation amplifier. It is distinguished by its compact 4 mm × 4 mm LFCSP (Lead Frame Chip Scale Package) and the ability to set gains from 1 to 10,000 using just one external resistor per amplifier. This amplifier is designed to offer high accuracy and low noise, making it suitable for a variety of applications requiring precise signal amplification.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Range | 1 to 10,000 | - |
| Input Offset Voltage (Max) | 60 µV | µV |
| Input Offset Drift (Max) | 0.3 µV/°C | µV/°C |
| Input Bias Current (Max) | 1.0 nA | nA |
| Common Mode Rejection Ratio (CMRR) (Min at G = 100) | 126 dB | dB |
| Bandwidth (G = 100) | 140 kHz | kHz |
| Settling Time to 0.001% (G = 100) | 13 µs | µs |
| Supply Range | ±2.3 V to ±18 V | V |
| Quiescent Current per Amplifier | 0.9 to 1.1 mA | mA |
| Operating Temperature Range | −40°C to +85°C | °C |
Key Features
- Dual-channel instrumentation amplifier in a compact 4 mm × 4 mm LFCSP package.
- Gain set with one external resistor per amplifier (G = 1 to 10,000).
- Low noise: 8 nV/√Hz at 1 kHz and 0.25 µV p-p (0.1 Hz to 10 Hz).
- High accuracy DC performance with a maximum input offset voltage of 60 µV and a maximum input offset drift of 0.3 µV/°C.
- Excellent AC performance with a bandwidth of 140 kHz and a settling time of 13 µs to 0.001% at G = 100.
- Differential output option for single-channel configuration, providing high noise immunity.
- Adjustable common-mode output and fully specified operation.
- Operates on both single and dual supplies with a supply range of ±2.3 V to ±18 V.
- Low quiescent current of 0.9 to 1.1 mA per amplifier.
Applications
- Multichannel data acquisition for ECG and medical instrumentation.
- Industrial process controls.
- Wheatstone bridge sensors.
- Differential drives for high-resolution input ADCs.
- Remote sensors.
Q & A
- What is the gain range of the AD8222HBCPZ-R7?
The gain range of the AD8222HBCPZ-R7 is from 1 to 10,000, set using one external resistor per amplifier.
- What is the input offset voltage of the AD8222HBCPZ-R7?
The maximum input offset voltage is 60 µV.
- What is the common mode rejection ratio (CMRR) of the AD8222HBCPZ-R7 at a gain of 100?
The minimum CMRR at G = 100 is 126 dB.
- What is the bandwidth of the AD8222HBCPZ-R7 at a gain of 100?
The bandwidth at G = 100 is 140 kHz.
- What is the settling time of the AD8222HBCPZ-R7 to 0.001% at a gain of 100?
The settling time to 0.001% at G = 100 is 13 µs.
- What is the supply range of the AD8222HBCPZ-R7?
The supply range is ±2.3 V to ±18 V.
- What is the quiescent current per amplifier of the AD8222HBCPZ-R7?
The quiescent current per amplifier is 0.9 to 1.1 mA.
- What is the operating temperature range of the AD8222HBCPZ-R7?
The operating temperature range is −40°C to +85°C.
- Can the AD8222HBCPZ-R7 be configured as a single-channel differential output instrumentation amplifier?
- What are some typical applications of the AD8222HBCPZ-R7?
Typical applications include multichannel data acquisition for ECG and medical instrumentation, industrial process controls, Wheatstone bridge sensors, differential drives for high-resolution input ADCs, and remote sensors.
