AD8221ARMZ-R7
Instrumentation, Op Amps, Buffer Amps
Technical Specifications
| Type | Description |
|---|---|
| Iq A | 0.001 A |
| Settling time | 10us |
| Input Offset Current(Ios) | 1nA |
| Input Offset Current Drift (Ios TC) | 3pA/°C |
| Ib - Input Bias Current | 500pA |
| Power Supply Rejection Ratio (PSRR) | 90dB |
| -3dB Bandwidth | 825kHz |
| Output Current | 0.018 A |
| Channels | 1.0 |
| Voffset V | 60 V |
| Type | Description |
|---|---|
| Slew Rate Vus | 2.0 |
| Operating Temp | -40°C ~ +85°C |
| Common Mode Rejection Ratio | 80.0 |
| Voffset Drift Uv | 400.0 |
| Features | External resistor gain |
| Noise Nv | 8.0 |
| Dual Supply | -18V~-2.3V;2.3V~18V |
| Rail To Rail | Rail-to-rail output |
| Package / Case | MSOP-8 |
Product Introduction
The AD8221 is a gain programmable, high performance instrumentation amplifier that delivers the highest CMRR over frequency in its class. The CMRR of instrumentation amplifiers on the market today falls off at 200 Hz. In contrast, the AD8221 maintains a minimum CMRR of 80 dB to 10 kHz for all grades at G = 1. High CMRR over frequency allows the AD8221 to reject wideband interference and line harmonics, greatly simplifying filter requirements.
Low voltage offset, low offset drift, low gain drift, high gain accuracy, and high CMRR make this part an excellent choice in applications that demand the best dc performance possible, such as bridge signal conditioning.
Programmable gain affords the user design flexibility. A single resistor sets the gain from 1 to 1000. The AD8221 operates on both single and dual supplies and is well suited for applications where ±10 V input voltages are encountered.
The AD8221 is available in a low cost 8 - lead SOIC and 8 - lead MSOP. The MSOP requires half the board space of the SOIC, making it ideal for multichannel or space - constrained applications.
Performance is specified over the entire industrial temperature range of - 40°C to + 85°C for all grades. Furthermore, the AD8221 is operational from - 40°C to + 125°C.
Features
- Easy to use
- Available in space - saving MSOP
- Gain set with 1 external resistor (gain range 1 to 1000)
- Wide power supply range: ±2.3 V to ±18 V
- Temperature range for specified performance: - 40°C to + 85°C
- Operational up to 125°C
- Excellent AC specifications: 80 dB minimum CMRR to 10 kHz (G = 1), 825 kHz, - 3 dB bandwidth (G = 7), 2 V/μs slew rate
- Low noise: 8 nV/√Hz, @ 1 kHz, maximum input voltage noise; 0.25 μV p - p input noise (0.1 Hz to 10 Hz)
- High accuracy dc performance (AD8221BR): 90 dB minimum CMRR (G = 7), 25 μV maximum input offset voltage, 0.3 μV/°C maximum input offset drift, 0.4 nA maximum input bias current
Applications
- - Weigh scales - Industrial process controls - Bridge amplifiers - Precision data acquisition systems - Medical instrumentation - Strain gages - Transducer interfaces
Datasheet
Alternative Parts
Common AD8221ARMZ-R7 alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542339000 |
| USHTS | 8542330001 |
| TARIC | 8542339000 |
| Type | Details |
|---|---|
| CAHTS | 8542330000 |
| BRHTS | 85423390 |
| INHTS | 85423300 |
| MXHTS | 8542.33.99 |
Sourcing Information
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