Overview
The AD8222HACPZ-R7 is a high-performance, dual-channel instrumentation amplifier produced by Analog Devices Inc. This device is notable for its compact 4 mm × 4 mm LFCSP package, which allows for a 2× increase in channel density without compromising performance. The AD8222 requires only one external resistor per amplifier to set gains ranging from 1 to 10,000, making it highly versatile for various applications. It is fully specified and guaranteed to meet data sheet specifications, ensuring reliable operation in a wide range of environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Gain Range | 1 to 10,000 | |
| Noise (eNI) at 1 kHz | 8 nV/√Hz | |
| Input Offset Voltage | 60 μV (max) | μV |
| Input Offset Drift | 0.3 μV/°C (max) | μV/°C |
| Input Bias Current | 1.0 nA (max) | nA |
| Common Mode Rejection Ratio (CMRR) | 126 dB (min at G = 100) | dB |
| Bandwidth (G = 100) | 140 kHz | kHz |
| Settling Time to 0.001% | 13 μs | μs |
| Supply Voltage Range | ±2.3 V to ±18 V | V |
| Operating Temperature Range | −40°C to +85°C | °C |
| Package Type | 16-Lead LFCSP (4mm x 4mm x 0.85mm) |
Key Features
- Dual-channel instrumentation amplifier with high performance.
- Gain set with 1 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.
- Excellent AC performance with a bandwidth of 140 kHz (G = 100) and a settling time of 13 μs to 0.001%.
- 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 voltage range of ±2.3 V to ±18 V.
- RoHS compliant and operational from −40°C to +125°C.
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 AD8222HACPZ-R7?
The gain range of the AD8222HACPZ-R7 is from 1 to 10,000, set by a single external resistor per amplifier.
- What is the noise performance of the AD8222HACPZ-R7?
The AD8222HACPZ-R7 has a noise performance of 8 nV/√Hz at 1 kHz and 0.25 μV p-p (0.1 Hz to 10 Hz).
- What is the input offset voltage of the AD8222HACPZ-R7?
The maximum input offset voltage of the AD8222HACPZ-R7 is 60 μV.
- What is the common mode rejection ratio (CMRR) of the AD8222HACPZ-R7?
The CMRR of the AD8222HACPZ-R7 is a minimum of 126 dB at G = 100.
- What is the bandwidth of the AD8222HACPZ-R7 at a gain of 100?
The bandwidth of the AD8222HACPZ-R7 at a gain of 100 is 140 kHz.
- How long does it take for the AD8222HACPZ-R7 to settle to 0.001%?
The settling time to 0.001% for the AD8222HACPZ-R7 is 13 μs.
- What is the supply voltage range of the AD8222HACPZ-R7?
The AD8222HACPZ-R7 operates with a supply voltage range of ±2.3 V to ±18 V.
- What is the operating temperature range of the AD8222HACPZ-R7?
The AD8222HACPZ-R7 is specified to operate from −40°C to +85°C and is fully operational up to +125°C.
- Is the AD8222HACPZ-R7 RoHS compliant?
Yes, the AD8222HACPZ-R7 is RoHS compliant.
- Can the AD8222HACPZ-R7 be configured for differential output?
Yes, the AD8222HACPZ-R7 can be configured as a single-channel, differential output instrumentation amplifier.
