Overview
The AD625CD, produced by Analog Devices Inc., is a precision instrumentation amplifier designed to meet the needs of circuits requiring nonstandard gains and low-cost, high-precision software programmable gain amplifiers. This device is part of the AD625 family, which offers user-programmable gains from 1 to 10,000, making it highly versatile for various applications. The AD625CD is particularly suited for industrial environments, operating within a temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Amplifier Type | Instrumentation Amplifier |
| Gain Range | 1 to 10,000 |
| Gain Error | 0.02% Max |
| Gain Temperature Coefficient (TC) | 5 ppm/°C Max |
| Nonlinearity | 0.001% Max at G = 1 |
| Input Offset Voltage | 25 µV |
| Noise | 4 nV/√Hz at 1 kHz |
| Gain Bandwidth Product | 25 MHz |
| Slew Rate | 5 V/µs |
| Settling Time | 15 µs |
| Operating Temperature Range | -40°C to +85°C |
| Power Supply Range | ±6 to ±18 V |
| Quiescent Current | 3.5 mA |
| Package | 16-Lead Ceramic DIP (CDIP) |
Key Features
- User-programmable gains from 1 to 10,000 using three external resistors.
- Low gain error and gain temperature coefficient, ensuring high precision.
- Low nonlinearity and offset voltage for accurate signal amplification.
- High gain bandwidth product of 25 MHz and a 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 with a CMOS multiplexer and resistor network.
- Available in various accuracy grades and temperature ranges, including industrial and extended temperature options.
Applications
- Circuits requiring nonstandard gains not easily achievable with other instrumentation amplifiers.
- Low-cost, precision software programmable gain amplifiers.
- Industrial and commercial applications where high precision and low noise are critical.
- Medical and scientific instrumentation where accurate signal amplification is necessary.
- Aerospace and defense applications requiring MIL-Standard parts.
Q & A
- What is the gain range of the AD625CD?
The AD625CD can be programmed for gains from 1 to 10,000.
- What is the maximum gain error of the AD625CD?
The maximum gain error is 0.02%.
- What is the input offset voltage of the AD625CD?
The input offset voltage is 25 µV.
- What is the gain bandwidth product of the AD625CD?
The gain bandwidth product is 25 MHz.
- What is the operating temperature range of the AD625CD?
The operating temperature range is -40°C to +85°C.
- Can the AD625CD be used in software programmable gain amplifier configurations?
Yes, it can be configured as a 12-bit software programmable gain amplifier with a CMOS multiplexer and resistor network.
- What is the slew rate of the AD625CD?
The slew rate is 5 V/µs.
- What is the quiescent current of the AD625CD?
The quiescent current is 3.5 mA.
- What types of packages are available for the AD625CD?
The AD625CD is available in 16-Lead Ceramic DIP (CDIP) packages.
- Is the AD625CD suitable for high-precision applications?
Yes, it is designed for high-precision applications with low noise, low nonlinearity, and independent input and output offset nulling terminals.
