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LTC6910-3

Linear
Part Number LTC6910-3
Manufacturer Linear
Description (LTC6910-1/-2/-3) Digitally Controlled Programmable Gain Amplifiers
Published Jan 23, 2014
Detailed Description LTC6910-1 LTC6910-2/LTC6910-3 Digitally Controlled Programmable Gain Amplifiers in SOT-23 FEATURES s s s s s s s s s DE...
Datasheet PDF File LTC6910-3 PDF File

LTC6910-3
LTC6910-3

Overview
LTC6910-1 LTC6910-2/LTC6910-3 Digitally Controlled Programmable Gain Amplifiers in SOT-23 FEATURES s s s s s s s s s DESCRIPTIO 3-Bit Digital Gain Control in Three Gain-Code Options Rail-to-Rail Input Range Rail-to-Rail Output Swing Single or Dual Supply: 2.
7V to 10.
5V Total 11MHz Gain Bandwidth Product Input Noise Down to 8nV/√Hz System Dynamic Range to 120dB Input Offset Voltage: 1.
5mV 8-Pin Low Profile (1mm) SOT-23 (ThinSOT™) Package The LTC®6910 family are low noise digitally programmable gain amplifiers (PGAs) that are easy to use and occupy very little PC board space.
The inverting gain is adjustable using a 3-bit digital input to select gains of 0, 1, 2, 5, 10, 20, 50 and 100V/V in the LTC6910-1; 0, 1, 2, 4, 8, 16, 32 and 64V/V in the LTC6910-2; and 0, 1, 2, 3, 4, 5,6 and 7V/V in the LTC6910-3.
The LTC6910-Xs are inverting amplifiers with rail-to-rail output.
When operated with unity gain, they will also process rail-to-rail input signals.
A half-supply reference generated internally at the AGND pin supports single power supply applications.
Operating from single or split supplies from 2.
7V to 10.
5V, the LTC6910-X family is offered in an 8-lead SOT-23 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
U.
S.
Patent Number 6121908.
U APPLICATIO S s s s s Data Acquisition Systems Dynamic Gain Changing Automatic Ranging Circuits Automatic Gain Control TYPICAL APPLICATIO Single Supply Programmable Amplifier V+ 2.
7V TO 10.
5V 0.
1µF DIGITAL INPUTS GAIN IN VOLTS/VOLT G2 G1 G0 6910-1 6910-2 6910-3 0 0 0 0 0 0 0 –1 0 –1 1 –1 0 –2 1 –2 0 –2 0 –5 1 –4 1 –3 1 –10 0 –8 0 –4 1 –20 0 –16 1 –5 1 –50 1 –32 0 –6 1 –100 1 –64 1 –7 50 40 4 VIN 3 LTC6910-X 5 7 6 1 2 AGND 1µF OR LARGER 6910 TA01 GAIN (dB) 8 VOUT = GAIN • VIN 30 GAIN OF 50 (DIGITAL INPUT 110) GAIN OF 20 (DIGITAL INPUT 101) 20 GAIN OF 10 (DIGITAL INPUT 100) 10 GAIN OF 5 (DIGITAL INPUT 011) GAIN OF 2 (DIGITAL INPUT 010) 0...


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