Overview
The AD8253ARMZ-R7, produced by Analog Devices Inc., is a high-performance instrumentation amplifier with digitally programmable gains. It features gigaohm (GΩ) input impedance, low output noise, and low distortion, making it ideal for applications requiring precise signal amplification. The AD8253 is particularly suited for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs). Its compact 10-lead MSOP package and wide operating temperature range of −40°C to +85°C enhance its versatility in various environments.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Gain Settings | 1, 10, 100, 1000 | |||
| Bandwidth | 10 | MHz | ||
| Input Impedance | GΩ | |||
| Output Noise | 10 | nV/√Hz (G = 1000) | ||
| THD | −110 | dB at 1 kHz, 10 V swing | ||
| Settling Time | 780 | ns to 0.001% (G = 1000) | ||
| Slew Rate | 20 | V/μs | ||
| CMRR | 100 | dB (G = 1000, dc to 20 kHz) | ||
| Offset Drift | 1.2 | μV/°C (G = 1000) | ||
| Gain Drift | 10 | ppm/°C (G = 1000) | ||
| Supply Voltage | ±5 | ±15 | V | |
| Quiescent Current | 4.5 | 5.3 | 6 | mA |
| Operating Temperature | −40 | +85 | °C |
Key Features
- Digitally programmable gains of 1, 10, 100, and 1000
- High input impedance (GΩ)
- Low output noise (10 nV/√Hz at G = 1000)
- Low distortion (−110 dB THD at 1 kHz, 10 V swing)
- Fast settling time (780 ns to 0.001% at G = 1000)
- High slew rate (20 V/μs)
- High common-mode rejection ratio (CMRR) of 100 dB from dc to 20 kHz at G = 1000
- Low offset drift (1.2 μV/°C at G = 1000) and low gain drift (10 ppm/°C at G = 1000)
- Wide supply voltage range (±5 V to ±15 V)
- Compact 10-lead MSOP package
- Operating temperature range of −40°C to +85°C
Applications
- Data acquisition
- Biomedical analysis
- Test and measurement
Q & A
- What are the programmable gain settings of the AD8253? The AD8253 has programmable gains of 1, 10, 100, and 1000.
- What is the input impedance of the AD8253? The AD8253 features gigaohm (GΩ) input impedance.
- What is the output noise of the AD8253? The output noise is 10 nV/√Hz at a gain of 1000.
- What is the total harmonic distortion (THD) of the AD8253? The THD is −110 dB at 1 kHz with a 10 V swing.
- How long does the AD8253 take to settle? The settling time is 780 ns to 0.001% at a gain of 1000.
- What is the slew rate of the AD8253? The slew rate is 20 V/μs.
- What is the common-mode rejection ratio (CMRR) of the AD8253? The CMRR is 100 dB from dc to 20 kHz at a gain of 1000.
- What is the offset drift and gain drift of the AD8253? The offset drift is 1.2 μV/°C and the gain drift is 10 ppm/°C at a gain of 1000.
- What is the supply voltage range of the AD8253? The supply voltage range is ±5 V to ±15 V.
- What is the operating temperature range of the AD8253? The operating temperature range is −40°C to +85°C.
