Overview
The AD8221ARMZ-RL by Analog Devices Inc. is a precision instrumentation amplifier integrated into a single circuit and packaged in an 8-lead MSOP (Mini Small Outline Package). This amplifier is designed to offer high performance with features such as low input offset voltage and low input bias current, making it ideal for accurate data acquisition and sensor interface applications. It operates over a wide power supply range of ±2.3 V to ±18 V and maintains stable performance across a temperature range of -40°C to +85°C, with operational capability up to 125°C.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Operating Range | ±2.3 | ±18 | V | ||
| Quiescent Current | T = -40°C to +85°C | 0.9 | 1 | 1.2 | mA |
| Input Offset Voltage | 60 | µV | |||
| Input Bias Current | T = -40°C to +85°C | 0.5 | 2 | 3 | nA |
| Common-Mode Rejection Ratio (CMRR) | G = 1, to 10 kHz | 80 | dB | ||
| -3 dB Bandwidth | G = 1 | 825 | kHz | ||
| Slew Rate | 2 | V/µs | |||
| Output Swing | VS = ±2.3 V to ±5 V, RL = 10 kΩ | -VS + 1.1 | +VS - 1.2 | V | |
| Short-Circuit Current | 18 | mA | |||
| Temperature Range | Specified Performance | -40 | +85 | °C |
Key Features
- Gain programmable with a single external resistor (gain range 1 to 1000).
- High CMRR of 80 dB minimum to 10 kHz (G = 1).
- Wide power supply range: ±2.3 V to ±18 V.
- Low input offset voltage (60 µV max) and low input bias current (1.5 nA max).
- High bandwidth of 825 kHz (G = 1) and a slew rate of 2 V/µs.
- Operational temperature range of -40°C to +85°C, with operation up to 125°C.
- Available in space-saving 8-lead MSOP and SOIC packages.
- Rohs compliant and Ear99 ECCN code for global usability.
Applications
- Precision data acquisition systems.
- Medical instrumentation, including ECG machines and bioelectric signal monitoring.
- Industrial process controls and automation systems.
- Bridge amplifiers and strain gage applications.
- Environmental monitoring systems, such as pollution monitors and weather stations.
- Weigh scales and transducer interfaces).
Q & A
- What is the AD8221ARMZ-RL used for?
The AD8221ARMZ-RL is a precision instrumentation amplifier used in applications requiring high accuracy and low noise interference, such as precision data acquisition, medical instrumentation, and industrial process controls.
- What is the gain range of the AD8221ARMZ-RL?
The gain of the AD8221ARMZ-RL can be set with a single external resistor and ranges from 1 to 1000.
- What is the CMRR of the AD8221ARMZ-RL?
The AD8221ARMZ-RL has a minimum CMRR of 80 dB to 10 kHz at a gain of 1.
- What is the bandwidth of the AD8221ARMZ-RL?
The -3 dB bandwidth of the AD8221ARMZ-RL is 825 kHz at a gain of 1.
- What is the operating temperature range of the AD8221ARMZ-RL?
The specified performance temperature range is -40°C to +85°C, with operation possible up to 125°C.
- What are the package options for the AD8221ARMZ-RL?
The AD8221ARMZ-RL is available in an 8-lead MSOP package, which is space-saving and ideal for multichannel or space-constrained applications).
- Is the AD8221ARMZ-RL RoHS compliant?
Yes, the AD8221ARMZ-RL is RoHS compliant and has an Ear99 ECCN code, indicating global usability).
- What is the input offset voltage of the AD8221ARMZ-RL?
The input offset voltage of the AD8221ARMZ-RL is 60 µV maximum).
- What is the slew rate of the AD8221ARMZ-RL?
The slew rate of the AD8221ARMZ-RL is 2 V/µs).
- Can the AD8221ARMZ-RL be used in medical applications?
Yes, the AD8221ARMZ-RL can be used in medical diagnostic equipment such as ECG machines and bioelectric signal monitoring due to its high accuracy and low noise interference).
