Overview
The AD8250ARMZ-RL, produced by Analog Devices Inc., is an instrumentation amplifier with digitally programmable gains. It is designed to offer high input impedance, low output noise, and low distortion, making it suitable for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs). The amplifier features a high bandwidth of 10 MHz, fast settling time of 615 ns to 0.001%, and a high slew rate of 20 V/μs. Its precision dc performance and high-speed capabilities make it an excellent candidate for data acquisition and other high-precision applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Gain Settings | 1, 2, 5, 10 | |||
| Input Impedance | GΩ | |||
| Bandwidth | 10 MHz | |||
| Settling Time | 615 ns to 0.001% | |||
| Slew Rate | 20 V/μs | |||
| Total Harmonic Distortion (THD) | -110 dB at 1 kHz | |||
| Common-Mode Rejection Ratio (CMRR) | 80 dB to 50 kHz | |||
| Noise | 18 nV/√Hz at G = 10 | |||
| Supply Voltage | ±5 V to ±15 V | |||
| Power Consumption | 4.1 mA | |||
| Temperature Range | -40°C to +85°C | |||
| Package | 10-lead MSOP |
Key Features
- Digital or pin-programmable gain settings (1, 2, 5, 10)
- High input impedance (GΩ)
- Low output noise and low distortion
- Fast settling time (615 ns to 0.001%) and high slew rate (20 V/μs)
- High CMRR (80 dB to 50 kHz)
- Low offset drift (1.7 μV/°C) and gain drift (10 ppm/°C) at G = 10
- Wide supply voltage range (±5 V to ±15 V)
- Low power consumption (4.1 mA)
- Compact 10-lead MSOP package
Applications
- Data acquisition
- Biomedical analysis
- Test and measurement
- Interfacing with sensors and driving high sample rate ADCs
Q & A
- What are the programmable gain settings of the AD8250?
The AD8250 has programmable gain settings of 1, 2, 5, and 10.
- What is the input impedance of the AD8250?
The input impedance of the AD8250 is GΩ.
- What is the bandwidth of the AD8250?
The bandwidth of the AD8250 is 10 MHz.
- How long does the AD8250 take to settle to 0.001% accuracy?
The AD8250 settles to 0.001% accuracy in 615 ns.
- What is the slew rate of the AD8250?
The slew rate of the AD8250 is 20 V/μs.
- What is the total harmonic distortion (THD) of the AD8250 at 1 kHz?
The THD of the AD8250 at 1 kHz is -110 dB.
- What is the common-mode rejection ratio (CMRR) of the AD8250?
The CMRR of the AD8250 is 80 dB to 50 kHz.
- What is the noise level of the AD8250 at a gain of 10?
The noise level of the AD8250 at a gain of 10 is 18 nV/√Hz.
- What is the supply voltage range for the AD8250?
The supply voltage range for the AD8250 is ±5 V to ±15 V.
- What is the typical power consumption of the AD8250?
The typical power consumption of the AD8250 is 4.1 mA.
