Overview
The AD623ANZ, produced by Analog Devices Inc., is an integrated, single- or dual-supply instrumentation amplifier. It delivers rail-to-rail output swing using supply voltages from 2.7 V to 12 V. This amplifier offers user flexibility through single gain set resistor programming and conforms to the 8-lead industry standard pinout configuration. With no external resistor, the AD623ANZ is configured for unity gain (G = 1), and with an external resistor, it can be programmed for gains of up to 1000. The AD623ANZ is known for its high accuracy dc performance, low power consumption, and excellent dynamic specifications, making it suitable for a variety of applications including medical instrumentation, transducer interfaces, thermocouple amplifiers, and industrial process controls.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.7 | - | 12 | V |
| Dual Supply Voltage Range | ±2.5 | - | ±6 | V |
| Quiescent Current (Dual Supply) | 375 | 550 | 625 | µA |
| Quiescent Current (Single Supply) | 305 | 480 | 625 | µA |
| Gain Range | 1 | - | 1000 | - |
| Gain Error (G = 1) | - | 0.10% | - | - |
| Gain Error (G > 1) | - | 0.35% | - | - |
| Bandwidth (G = 1) | - | 800 kHz | - | - |
| Settling Time to 0.01% (G = 10) | - | 20 µs | - | - |
| Noise (RTI) at 1 kHz | - | 35 nV/√Hz | - | - |
| Input Voltage Range | (-VS) - 0.15 | - | (+VS) - 1.5 | V |
| Common-Mode Rejection Ratio at 60 Hz | 70 | 80 | 90 | dB |
| Operating Temperature Range | -40 | - | +85 | °C |
Key Features
- Easy to use with single gain set resistor programming
- Rail-to-rail output swing
- Gain range: 1 to 1000
- High-precision DC performance with 0.10% gain error (G = 1) and 0.35% gain error (G > 1)
- Excellent dynamic specifications: 800 kHz bandwidth (G = 1), 20 µs settling time to 0.01% (G = 10)
- Low power consumption: 550 µA maximum quiescent current
- Wide input common-mode range: extends 150 mV below ground
- Available in 8-Pin PDIP, SOIC, and VSSOP packages
- Excellent noise performance: 35 nV/√Hz RTI noise at 1 kHz
Applications
- Low power medical instrumentation
- Transducer interfaces
- Thermocouple amplifiers
- Industrial process controls
- Difference amplifiers
- Low power data acquisition
- Battery-operated applications due to low power consumption
Q & A
- What is the AD623ANZ?
The AD623ANZ is an integrated, single- or dual-supply instrumentation amplifier produced by Analog Devices Inc.
- What is the supply voltage range for the AD623ANZ?
The supply voltage range is from 2.7 V to 12 V for single supply and ±2.5 V to ±6 V for dual supply.
- What is the gain range of the AD623ANZ?
The gain range is from 1 to 1000, set by a single external resistor.
- What is the quiescent current of the AD623ANZ?
The maximum quiescent current is 550 µA for dual supply and 480 µA for single supply.
- What is the bandwidth of the AD623ANZ at unity gain?
The bandwidth at unity gain (G = 1) is 800 kHz.
- What is the settling time of the AD623ANZ to 0.01% at a gain of 10?
The settling time to 0.01% at a gain of 10 is 20 µs.
- What is the noise performance of the AD623ANZ?
The RTI noise at 1 kHz is 35 nV/√Hz.
- What are the common applications of the AD623ANZ?
Common applications include low power medical instrumentation, transducer interfaces, thermocouple amplifiers, industrial process controls, and low power data acquisition.
- What packages is the AD623ANZ available in?
The AD623ANZ is available in 8-Pin PDIP, SOIC, and VSSOP packages.
- What is the operating temperature range of the AD623ANZ?
The operating temperature range is from -40°C to +85°C.
