Datasheet LTC6915 (Analog Devices) - 18

LTC6915
Typical applicaTion
V+ V+ C5 BRIDGE C1 C2 0.1µF SENSOR 10k ZETEK 1 16 0.1µF 0.1µF SHDN V+ ZXM61P02F 20 2 LTC6915 15 R < 10K IN– OUT VDDPIC16LF73 16 MOSI 3 14 1 RC5/SDO IN+ SENSE 9 OSC1/ 15 MISO VCC RC4/SDI/SDA 4 13 CLKIN SCLK V– REF 14 2 8 X1 RC3/SCK/SCL REF+ SDO 10 OSC2/ 13 CS1 5 12 4MHz RC2/CCP1 HOLD_THRU NC LTC2431 CLKOUT 3 9 12 CS2 REF– SCK RC1/T1OSI/CCP2 6 11 28 CS(D0) PAR_SER 4 7 RB7 IN+ CS 1 MCLR/ 7 7 10 V+ V RAS/AN4/SS DIN(D1) DGND 1.25V 5 10 PP 6 IN– FO RA4/T0CLK1 8 9 CLK(D2) D V OUT(D3) SS VSS GND 8 19 6 V+ V+ MEASURE STANDBY 4 6 0V VIN VOUT 10k CONTROL SIGNAL C3 C3 LT1790-1.25 0.1µF 1µF GND1 GND2 V+ 1 2 6915 F07
Figure 7. Bridge Amplifier with Programmable Gain and Analog to Digital Conversion. (Standby Current Less than 100µA) relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LTC1043 Dual Precision Instrumentation Switched-Capacitor Rail-to-Rail Input, 120dB CMRR Building Block LTC1100 Precision Zero-Drift Instrumentation Amplifier Fixed Gains of 10 or 100, 10µV Offset, 50pA Input Bias Current LTC1101 Precision, Micropower, Single Supply Instrumentation Fixed Gain of 10 or 100, IS < 105µA Amplifier LTC1167 Single Resistor Gain Programmable, Precision Single Gains Set Resistor, G = 1 to 10,000 Low Noise: 7.5nV/√Hz Instrumentation Amplifier LTC1168 Low Power Single Resistor Gain Programmable, IS = 530µA Precision Instrumentation Amplifiers LTC1789-1 Single Supply, Rail-to-Rail Output, Micropower IS = 80µA Max Instrumentation Amplifier LTC2050 Zero-Drift Operational Amplifier SOT-23 Package LTC2051 Dual Zero-Drift Operational Amplifier MS8 Package LTC2052 Quad Zero-Drift Operational Amplifier GN16 Package LTC2053 Rail-to-Rail Input and Output, Zero-Drift Instrumentation MS8 Package, 10µV Max VOS, 50nV/°C Max Drift Amplifier with Resistor-Programmable Gain LTC6800 Rail-to-Rail Input and Output, Instrumentation Amplifier MS8 Package, 100µV Max VOS, 250nV/°C Max Drift with Resistor-Programmable Gain 6915fb 18 Linear Technology Corporation LT 0611 REV B • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2004 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Operation Typical Application Package Description Revision History Typical Application Related Parts