Datasheet AD8223 (Analog Devices)

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Single-Supply, Low Cost Instrumentation Amplifier AD8223 FEATURES CONNECTION DIAGRAM Gain set with 1 resistor –RG 1 8 +RG Gain = 5 to 1000 –IN 2 – 7 +V Inputs S +IN 3 + 6 OUT Voltage range to 150 mV below negative rail
01 0
25 nA maximum input bias current –VS 4 5 REF AD8223
5- 692 0
30 nV/√Hz, RTI noise @ 1 kHz
Figure 1. 8-Lead SOIC (R) and 8-Lead MSOP (RM) Packages
Power supplies Dual supply: ±2 V to ±12 V Table 1. Instrumentation Amplifiers by Category Single supply: 3 V to 24 V General- Mil Low High Voltage 500 μA maximum supply current Purpose Zero Drift Grade Power PGA
AD82201 AD82311 AD620 AD6271 AD8250
APPLICATIONS
AD8221 AD85531 AD621 AD6231 AD8251
Low power medical instrumentation
AD8222 AD85551 AD524 AD8223 AD8253
Transducer interface
AD82241 AD85561 AD526
Thermocouple amplifiers
AD8228 AD85571 AD624
Industrial process controls
1 Rail-to-rail output.
Difference amplifiers Low power data acquisition GENERAL DESCRIPTION
The AD8223 is an integrated single-supply instrumentation to operate from a single supply, the AD8223 still provides amplifier that delivers rail-to-rail output swing on a single excellent performance when operated from a dual voltage supply (3 V to 24 V). The AD8223 conforms to the 8-lead supply (±2 V to ±12 V). industry standard pinout configuration. Low power consumption (1.5 mW at 3 V), wide supply voltage The AD8223 is simple to use: one resistor sets the gain. With no range, and rail-to-rail output swing make the AD8223 ideal for external resistor, the AD8223 is configured for G = 5. With an battery-powered applications. The rail-to-rail output stage external resistor, the AD8223 can be programmed for gains up maximizes the dynamic range when operating from low supply to 1000. voltages. The AD8223 replaces discrete instrumentation amplifier designs and offers superior linearity, temperature The AD8223 has a wide input common-mode range and can stability, and reliability in a minimum of space. amplify signals that have a 150 mV common-mode voltage below ground. Although the design of the AD8223 is optimized
Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS SINGLE SUPPLY DUAL SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION AMPLIFIER ARCHITECTURE GAIN SELECTION INPUT VOLTAGE RANGE REFERENCE TERMINAL INPUT PROTECTION RF INTERFERENCE (RFI) GROUND RETURNS FOR INPUT BIAS CURRENTS APPLICATIONS INFORMATION BASIC CONNECTION DIFFERENTIAL OUTPUT OUTPUT BUFFERING CABLES Receiving from a Cable Driving a Cable A SINGLE-SUPPLY DATA ACQUISITION SYSTEM AMPLIFYING SIGNALS WITH LOW COMMON-MODE VOLTAGE OUTLINE DIMENSIONS ORDERING GUIDE