Part: AD623 Type: Instrumentation Amplifier

Description: The AD623 is an integrated, single- or dual-supply instrumentation amplifier that delivers rail-to-rail output swing, programmable gain from 1 to 1000, and low power consumption with a maximum quiescent current of 550 μA.

Operating Conditions:

• Supply voltage: 2.7–12 V (single supply) or ±2.5 V to ±6 V (dual supply)

Key Specs:

• Gain Range: 1 to 1000
• Quiescent Current: 550 μA maximum
• Gain Error (G=1): 0.10% maximum
• Gain Error (G>1): 0.35% maximum
• Input Offset Voltage (AD623ANZ, AD623ARZ): 200 μV maximum
• Common-Mode Rejection (G=1, 60 Hz): 70 dB minimum (VCM=0V to 3V, single supply)
• Bandwidth (G=1): 800 kHz typical
• Settling Time to 0.01% (G=10): 20 μs typical

Features:

• Easy to use
• Rail-to-rail output swing
• Input voltage range extends 150 mV below ground (single supply)
• Low power, 550 μA maximum quiescent current
• Gain set with one external resistor
• Gain range: 1 to 1000
• High accuracy dc performance
• 0.10% gain error (G = 1)
• 0.35% gain error (G > 1)
• Noise: 35 nV/√Hz RTI noise at 1 kHz
• Optimal dynamic specifications
• 800 kHz bandwidth (G = 1)
• 20 μs settling time to 0.0

Easy to use

Rail-to-rail output swing Input voltage range extends 150 mV below ground (single supply) Low power, 550 μA maximum quiescent current Gain set with one external resistor Gain range: 1 to 1000 High accuracy dc performance 0.10% gain error (G = 1) 0.35% gain error (G > 1) Noise: 35 nV/√Hz RTI noise at 1 kHz Optimal dynamic specifications 800 kHz bandwidth (G = 1) 20 μs settling time to 0.01% (G = 10)

Low power medical instrumentation Transducer interfaces Thermocouple amplifiers Industrial process controls Difference amplifiers Low power data acquisition

AD623ARMZ — 8-Lead PDIP Pinout

Notes

• Pin configuration verified against Figure 2 (top view, not to scale) in the datasheet.
• RG pins (1, 8) are used for external gain setting resistor connection.
• REF pin (5) sets the output common-mode voltage level.
• Single-supply or dual-supply operation supported via ±VS pins.

Table 5.

1

Specification is for device in free air: 8-Lead PDIP Package: θJA = 95°C/W 8-Lead SOIC Package: θJA = 155°C/W 8-Lead MSOP Package: θJA = 200°C/W

Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability.