Overview
The AD620ANZ is a low-cost, high-accuracy instrumentation amplifier produced by Analog Devices Inc. It is designed to offer high performance with minimal external components, making it ideal for a variety of precision applications. The AD620ANZ requires only one external resistor to set gains from 1 to 10,000, and it features 8-lead PDIP packaging. This amplifier is particularly suited for battery-powered, portable, or remote applications due to its low power consumption of only 1.3 mA maximum supply current.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | ±5 | ±18 | V | |
| Input Bias Current | 1.0 nA | |||
| Offset Voltage | 50 μV | |||
| Offset Drift | 0.6 μV/°C | |||
| Nonlinearity | 40 ppm | |||
| Input Voltage Noise | 9 nV/√Hz at 1 kHz | |||
| Settling Time | 15 μs to 0.01% | |||
| Operating Temperature Range | −40°C | +85°C | ||
| Package Type | 8-Lead PDIP |
Key Features
- High accuracy with 40 ppm maximum nonlinearity and low offset voltage of 50 μV max.
- Low input bias current of 1.0 nA max, achieved through Superβeta processing in the input stage.
- Low noise characteristics, including 9 nV/√Hz input voltage noise at 1 kHz and 0.28 μV p-p in the 0.1 Hz to 10 Hz band.
- Fast settling time of 15 μs to 0.01%, making it suitable for multiplexed applications.
- Low power consumption of only 1.3 mA maximum supply current, ideal for battery-powered and portable applications.
- Compact 8-lead SOIC and DIP packaging, smaller than discrete designs.
Applications
- Weigh scales and precision data acquisition systems.
- ECG and other medical instrumentation, including noninvasive blood pressure monitors.
- Transducer interfaces.
- Industrial process controls.
- Battery-powered and portable equipment.
Q & A
- What is the gain range of the AD620ANZ? The AD620ANZ can set gains from 1 to 10,000 using only one external resistor.
- What is the maximum supply current of the AD620ANZ? The maximum supply current is 1.3 mA.
- What is the input bias current of the AD620ANZ? The input bias current is 1.0 nA max.
- What are the typical noise characteristics of the AD620ANZ? It has an input voltage noise of 9 nV/√Hz at 1 kHz and 0.28 μV p-p in the 0.1 Hz to 10 Hz band.
- What is the settling time of the AD620ANZ? The settling time is 15 μs to 0.01%.
- What are the common applications of the AD620ANZ? It is commonly used in weigh scales, medical instrumentation, transducer interfaces, data acquisition systems, and industrial process controls.
- What is the operating temperature range of the AD620ANZ? The operating temperature range is −40°C to +85°C.
- What type of packaging does the AD620ANZ come in? It comes in 8-lead PDIP and SOIC packages.
- Is the AD620ANZ suitable for battery-powered applications? Yes, it is suitable due to its low power consumption.
- Can the AD620ANZ be used in multiplexed applications? Yes, it is well suited for multiplexed applications due to its fast settling time.
