Overview
The AD8253ARMZ-RL, produced by Analog Devices Inc., is a monolithic instrumentation amplifier based on the classic 3-op-amp topology. It is designed to offer high precision and performance, making it suitable for various applications such as data acquisition, biomedical analysis, and test and measurement. The amplifier features digitally programmable gains, gigaohm (GΩ) input impedance, low output noise, and low distortion. Its high bandwidth of 10 MHz, fast settling time of 780 ns to 0.001%, and high slew rate of 20 V/μs make it an excellent candidate for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs).
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Gain | 1 | 1000 | |||
| Bandwidth | 10 | MHz | |||
| Settling Time | to 0.001% | 780 | ns | ||
| Slew Rate | 20 | V/μs | |||
| THD | at 1 kHz, 10 V swing | -110 | dB | ||
| CMRR | at G = 1000, dc to 20 kHz | 100 | dB | ||
| Offset Drift | at G = 1000 | 1.2 | μV/°C | ||
| Gain Drift | at G = 1000 | 10 | ppm/°C | ||
| Input Impedance | GΩ | ||||
| Supply Voltage | ±5 | ±15 | V | ||
| Quiescent Current | 4.5 | 5.3 | 6 | mA | |
| Operating Temperature | -40 | 85 | °C |
Key Features
The AD8253ARMZ-RL boasts several key features that make it highly versatile and efficient:
- Digitally Programmable Gains: The amplifier allows for programmable gains of 1, 10, 100, and 1000 through a parallel port or pin-programmable gain setting.
- High Input Impedance: It features gigaohm (GΩ) input impedance, which is beneficial for interfacing with high-impedance sensors.
- Low Noise and Distortion: The amplifier has low output noise of 10 nV/√Hz and low THD of -110 dB at 1 kHz, 10 V swing.
- High CMRR: It offers a high common-mode rejection ratio (CMRR) of 100 dB from dc to 20 kHz at G = 1000.
- Fast Settling Time and High Slew Rate: The settling time is 780 ns to 0.001%, and the slew rate is 20 V/μs.
- Wide Supply Voltage Range: The amplifier operates over a supply voltage range of ±5 V to ±15 V.
- Compact Package: It is available in a 10-lead MSOP package, which is ideal for applications where size and packing density are critical.
Applications
The AD8253ARMZ-RL is suitable for a variety of applications due to its high performance and versatility:
- Data Acquisition: Its high bandwidth, low noise, and fast settling time make it an excellent choice for data acquisition systems.
- Biomedical Analysis: The amplifier's precision and low distortion are beneficial for biomedical applications where accurate signal processing is crucial.
- Test and Measurement: It is used in test and measurement equipment due to its high CMRR and ability to handle a wide range of input signals.
Q & A
- What are the programmable gain settings of the AD8253ARMZ-RL?
The AD8253ARMZ-RL allows for programmable gains of 1, 10, 100, and 1000.
- What is the input impedance of the AD8253ARMZ-RL?
The input impedance is gigaohm (GΩ).
- What is the bandwidth of the AD8253ARMZ-RL?
The bandwidth is 10 MHz.
- What is the settling time of the AD8253ARMZ-RL?
The settling time is 780 ns to 0.001%.
- What is the slew rate of the AD8253ARMZ-RL?
The slew rate is 20 V/μs.
- What is the CMRR of the AD8253ARMZ-RL at G = 1000?
The CMRR is 100 dB from dc to 20 kHz.
- What is the offset drift of the AD8253ARMZ-RL at G = 1000?
The offset drift is 1.2 μV/°C.
- What is the gain drift of the AD8253ARMZ-RL at G = 1000?
The gain drift is 10 ppm/°C.
- What is the supply voltage range of the AD8253ARMZ-RL?
The supply voltage range is ±5 V to ±15 V.
- In what package is the AD8253ARMZ-RL available?
The AD8253ARMZ-RL is available in a 10-lead MSOP package.
