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AD627BN Fiches technique(PDF) 1 Page - Analog Devices |
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AD627BN Fiches technique(HTML) 1 Page - Analog Devices |
1 / 16 page REV. A 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 rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD627 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 Micropower, Single and Dual Supply Rail-to-Rail Instrumentation Amplifier FUNCTIONAL BLOCK DIAGRAM 8-Lead Plastic DIP (N) and SOIC (R) 8 7 6 5 1 2 3 4 RG –IN +IN –VS RG +VS OUTPUT REF AD627 FEATURES Micropower, 85 A Max Supply Current Wide Power Supply Range (+2.2 V to 18 V) Easy to Use Gain Set with One External Resistor Gain Range 5 (No Resistor) to 1,000 Higher Performance than Discrete Designs Rail-to-Rail Output Swing High Accuracy DC Performance 0.10% Gain Accuracy (G = 5) (AD627A) 10 ppm Gain Drift (G = 5) 125 V Max Input Offset Voltage (AD627B) 200 V Max Input Offset Voltage (AD627A) 1 V/ C Max Input Offset Voltage Drift (AD627B) 3 V/ C Max Input Offset Voltage Drift (AD627A) 10 nA Max Input Bias Current Noise: 38 nV/ √Hz RTI Noise @ 1 kHz (G = 100) Excellent AC Specifications 77 dB Min CMRR (G = 5) (AD627A) 83 dB Min CMRR (G = 5) (AD627B) 80 kHz Bandwidth (G = 5) 135 s Settling Time to 0.01% (G = 5, 5 V Step) APPLICATIONS 4 mA-to-20 mA Loop Powered Applications Low Power Medical Instrumentation—ECG, EEG Transducer Interfacing Thermocouple Amplifiers Industrial Process Controls Low Power Data Acquisition Portable Battery Powered Instruments PRODUCT DESCRIPTION The AD627 is an integrated, micropower, instrumentation amplifier that delivers rail-to-rail output swing on single and dual (+2.2 V to ±18 V) supplies. The AD627 provides the user with excellent ac and dc specifications while operating at only 85 µA max. The AD627 offers superior user flexibility by allowing the user to set the gain of the device with a single external resistor, and by conforming to the 8-lead industry standard pinout configura- tion. With no external resistor, the AD627 is configured for a gain of 5. With an external resistor, it can be programmed for gains of up to 1000. Wide supply voltage range (+2.2 V to ±18 V), and micropower current consumption make the AD627 a perfect fit for a wide range of applications. Single supply operation, low power con- sumption and rail-to-rail output swing make the AD627 ideal for battery powered applications. Its rail-to-rail output stage maximizes dynamic range when operating from low supply voltages. Dual supply operation ( ±15 V) and low power con- sumption make the AD627 ideal for industrial applications, including 4 mA-to-20 mA loop-powered systems. The AD627 does not compromise performance, unlike other micropower instrumentation amplifiers. Low voltage offset, offset drift, gain error, and gain drift keep dc errors to a mini- mum in the users system. The AD627 also holds errors over frequency to a minimum by providing excellent CMRR over frequency. Line noise, as well as line harmonics, will be rejected, since the CMRR remains high up to 200 Hz. The AD627 provides superior performance, uses less circuit board area and does it for a lower cost than micropower discrete designs. FREQUENCY – Hz 100 1 90 80 70 60 50 40 30 20 10 0 10 100 1k 10k TRADITIONAL LOW POWER DISCRETE DESIGN AD627 Figure 1. CMRR vs. Frequency, ±5 V S, Gain = 5 |
Numéro de pièce similaire - AD627BN |
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Description similaire - AD627BN |
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