LTC6911-1 Datasheet | Linear Technology

LTC6911-1/LTC6911-2 Dual Matched Amplifiers with Digitally Programmable Gain in MSOP Features s DESCRIPTIO s s s s s s s s s s 3-Bit Digital Gain Control: (Inverting Gains of 0, 1, 2, 5, 10, 20, 50 and 100V/V) -1 Option (Inverting Gains of 0, 1, 2, 4, 8, 16, 32 and 64V/V) -2 Option Two Matched Programmable Gain Amplifiers Channel-to-Channel Gain Matching of 0.1d B (Max) 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: 10n V/√Hz Total System Dynamic Range to 120d B Input Offset Voltage: 2m V, Gain of 10 Low Profile 10-Lead MSOP Package The LTC®6911 is a family of low noise digitally programmable gain amplifiers (PGAs) that are easy to use and occupy very little PC board space. The matched gain of both channels is adjustable using a 3-bit parallel interface to select voltage gains of 0, 1, 2, 5, 10, 20, 50 and 100V/ V (LTC6911-1) and 0, 1, 2, 4, 8, 16, 32 and 64V/V (LTC6911-2). All gains are inverting. The LTC6911 family consists of two matched inverting amplifiers with rail-to-rail outputs. 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 LTC6911 family is offered in a 10-lead MSOP package. , LTC and LT are registered trademarks of Linear Technology Corporation. U APPLICATIO S s s s s Data Acquisition Systems Dynamic Gain Changing Automatic Ranging Circuits Automatic Gain Control TYPICAL APPLICATIO V+ 2.7V TO 10.5V 7 0.1µF DIGITAL INPUT GAIN IN V/V G2 G1 G0 LTC6911-1 LTC6911-2 0 0 0 0 0 0 0 1 - 1 - 1 0 1 0 - 2 - 2 0 1 1 - 5 - 4 1 0 0 - 10 - 8 1 0 1 - 20 - 16 1 1 0 - 50 - 32 1 1 1 - 100 - 64 VINA AGND ≥1µF VOUTA = GAIN - VINA GAIN (d...