Overview
The AD624CD is a high precision, low noise instrumentation amplifier designed by Analog Devices Inc. It is primarily used with low-level transducers such as load cells, strain gauges, and pressure transducers. This amplifier is known for its outstanding combination of low noise, high gain accuracy, low gain temperature coefficient, and high linearity, making it ideal for high-resolution data acquisition systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Gain Range (Pin Programmable) | 1 to 1000 | V/V |
| Low Noise | 0.2 µV p-p (0.1 Hz to 10 Hz) | µV |
| Low Gain Temperature Coefficient | 5 ppm max (G = 1) | ppm |
| Low Nonlinearity | 0.001% max (G = 1 to 200) | % |
| High CMRR | 130 dB min (G = 500 to 1000) | dB |
| Input Offset Voltage | 25 µV, max | µV |
| Input Offset Voltage Drift | 0.25 µV/°C max | µV/°C |
| Gain Bandwidth Product | 25 MHz | MHz |
| Slew Rate | 5 V/µs | V/µs |
| Settling Time | 15 µs | µs |
| Supply Voltage Range | 6 V to 18 V | V |
| Operating Temperature Range | -25°C to +85°C | °C |
| Package | 16-Lead Side Brazed CerDIP |
Key Features
- No external components required for pre-trimmed gains of 1, 100, 200, 500, and 1000.
- Additional gains such as 250 and 333 can be programmed within one percent accuracy with external jumpers.
- A single external resistor can set the gain to any value in the range of 1 to 10,000.
- Totally independent input and output offset nulling terminals for high precision applications.
- Sense terminal to minimize errors induced through long leads and a reference terminal for level shifting at the output.
- Internally compensated.
Applications
- High-resolution data acquisition systems.
- Low-level transducer applications, including load cells, strain gauges, and pressure transducers.
- Industrial automation and IoT applications requiring precise signal amplification.
- Medical and healthcare devices needing high precision and low noise amplification.
- Smart Industry and Instrumentation applications.
Q & A
- What is the primary use of the AD624CD instrumentation amplifier?
The AD624CD is primarily used with low-level transducers such as load cells, strain gauges, and pressure transducers.
- What are the pre-trimmed gain values available on the AD624CD?
The pre-trimmed gain values are 1, 100, 200, 500, and 1000.
- Can the gain of the AD624CD be set to values other than the pre-trimmed gains?
- What is the input offset voltage of the AD624CD?
The input offset voltage is 25 µV, max.
- What is the common mode rejection ratio (CMRR) of the AD624CD?
The CMRR is 130 dB min (G = 500 to 1000).
- What is the gain bandwidth product of the AD624CD?
The gain bandwidth product is 25 MHz.
- What is the slew rate of the AD624CD?
The slew rate is 5 V/µs.
- What is the operating temperature range of the AD624CD?
The operating temperature range is -25°C to +85°C.
- Does the AD624CD require any external components for its operation?
No, the AD624CD does not require any external components for its pre-trimmed gains.
- What package type is the AD624CD available in?
The AD624CD is available in a 16-Lead Side Brazed CerDIP package.
