Overview
The AD625ADZ, produced by Analog Devices Inc., is a precision instrumentation amplifier designed to meet the requirements of circuits needing nonstandard gains and low-cost, precision software programmable gain amplifiers. This amplifier is highly versatile, allowing users to program gains from 1 to 10,000 using external resistors. It is available in various accuracy grades and temperature ranges, making it suitable for a wide range of applications, from industrial to commercial and extended temperature environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Range | 1 to 10,000 | - |
| Gain Error | 0.02% Max | % |
| Gain Temperature Coefficient | 5 ppm/°C Max | ppm/°C |
| Nonlinearity | 0.001% Max | % |
| Input Offset Voltage | 25 µV | µV |
| Noise | 4 nV/√Hz (at 1 kHz) | nV/√Hz |
| Gain Bandwidth Product | 25 MHz | MHz |
| Slew Rate | 5 V/µs | V/µs |
| Settling Time to 0.01%, 20 V Step | 15 µs (G = 1 to 200) | µs |
| Common Mode Rejection Ratio | 90 dB | dB |
| Supply Voltage Range | ±6 to ±18 V | V |
| Quiescent Current | 3.5 to 5 mA | mA |
| Temperature Range | -40°C to +85°C (A, B, C grades), 0°C to +70°C (J, K grades), -55°C to +125°C (S grade) | °C |
| Package | 16-Lead Ceramic or Plastic DIP, 20-Terminal LCC | - |
Key Features
- User-programmed gains from 1 to 10,000 using external resistors.
- Low gain error and gain temperature coefficient.
- Low nonlinearity and input offset voltage.
- Low noise of 4 nV/√Hz at 1 kHz.
- High gain bandwidth product of 25 MHz and slew rate of 5 V/µs.
- Independent input and output offset nulling terminals for high precision applications.
- Configurable as a 12-bit software programmable gain amplifier using a CMOS multiplexer and resistor network.
- Available in various accuracy grades and temperature ranges.
- MIL-Standard parts available.
Applications
- Circuits requiring nonstandard gains not easily achievable with other devices.
- Low-cost, precision software programmable gain amplifiers.
- Industrial, commercial, and extended temperature range applications.
- Signal conditioning in instrumentation, smart industry, electrification, and digital health applications.
Q & A
- What is the gain range of the AD625ADZ?
The AD625ADZ can be programmed for gains from 1 to 10,000.
- What is the maximum gain error of the AD625ADZ?
The maximum gain error is 0.02%.
- What is the input offset voltage of the AD625ADZ?
The input offset voltage is 25 µV.
- What is the gain bandwidth product of the AD625ADZ?
The gain bandwidth product is 25 MHz.
- What is the slew rate of the AD625ADZ?
The slew rate is 5 V/µs.
- Can the AD625ADZ be used in high-temperature environments?
- How is the gain programmed in the AD625ADZ?
The gain is programmed using three external resistors.
- What is the common mode rejection ratio (CMRR) of the AD625ADZ?
The CMRR is 90 dB.
- What are the available package types for the AD625ADZ?
The available packages include 16-Lead Ceramic or Plastic DIP and 20-Terminal LCC.
- Is the AD625ADZ suitable for military applications?
