LTC6912-1是Dual Programmable Gain Amplifiers with Serial Digital Interface

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LTC6912-1 - LTC6912-1是Dual Programmable Gain Amplifiers with Serial Digital Interface

LTC6912-1是Linear公司的一款可编程增益放大器产品，LTC6912-1是Dual Programmable Gain Amplifiers with Serial Digital Interface，本站介绍了LTC6912-1的封装应用图解、特点和优点、功能等，并给出了与LTC6912-1相关的凌力尔特元器件型号供参考。

LTC6912-1 - Dual Programmable Gain Amplifiers with Serial Digital Interface

LTC6912-1 - Dual Programmable Gain Amplifiers with Serial Digital Interface - Linear Technology（凌力尔特）

功能描述

The LTC6912 is a family of dual channel, low noise, digitally programmable gain amplifiers (PGA) that are easy to use and occupy very little PC board space. The gains for both channels are independently programmable using a 3-wire SPI interface to select voltage gains of 0, 1, 2, 5, 10, 20, 50, and 100V/V (LTC6912-1 ); and 0, 1, 2, 4, 8, 16, 32, and 64V/V (LTC6912-2). All gains are inverting.

The LTC6912 family consists of 2 matched 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 total, the LTC6912-X family is offered in tiny SSOP and DFN-12 Packages.

特点

2 Channels with Independent Gain ControlLTC6912-1: (0, 1, 2, 5, 10, 20, 50, and 100V/V)LTC6912-2: (0, 1, 2, 4, 8, 16, 32, and 64V/V)

Offset Voltage = 2mV Max (–40°C to 85°C)

Channel-to-Channel Gain Matching of 0.1dB Max

3-Wire SPITM Interface

Extended Gain-Bandwidth at High Gains

Wired-OR Outputs Possible (2:1 Analog MUX Function)

Low Power Hardware Shutdown (GN-16 Only, 2µA Max at 2.7V)

Rail-to-Rail Input Range

Rail-to-Rail Output Swing

Single or Dual Supply: 2.7V to 10.5V Total

Input Noise: 12.6nV/√Hz

Total System Dynamic Range to 115dB

16-Pin GN (SSOP) or 12-Pin DFN Package Options

应用

Data Acquisition Systems

Dynamic Gain Changing

Automatic Ranging Circuits

Automatic Gain Control

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC6912CDE-1	4x3 DFN-12	C	$3.29	$2.30
LTC6912CDE-1#PBF	4x3 DFN-12	C	$3.29	$2.30
LTC6912CDE-1#TR	4x3 DFN-12	C		$2.36
LTC6912CDE-1#TRPBF	4x3 DFN-12	C		$2.36
LTC6912CDE-2	4x3 DFN-12	C	$3.29	$2.30
LTC6912CDE-2#PBF	4x3 DFN-12	C	$3.29	$2.30
LTC6912CDE-2#TR	4x3 DFN-12	C		$2.36
LTC6912CDE-2#TRPBF	4x3 DFN-12	C		$2.36
LTC6912CGN-1	SSOP-16	C	$3.07	$2.15
LTC6912CGN-1#PBF	SSOP-16	C	$3.07	$2.15
LTC6912CGN-1#TR	SSOP-16	C		$2.21
LTC6912CGN-1#TRPBF	SSOP-16	C		$2.21
LTC6912CGN-2	SSOP-16	C	$3.07	$2.15
LTC6912CGN-2#PBF	SSOP-16	C	$3.07	$2.15
LTC6912CGN-2#TR	SSOP-16	C		$2.21
LTC6912CGN-2#TRPBF	SSOP-16	C		$2.21
LTC6912HGN-1	SSOP-16	H	$3.79	$2.65
LTC6912HGN-1#PBF	SSOP-16	H	$3.79	$2.65
LTC6912HGN-1#TR	SSOP-16	H		$2.71
LTC6912HGN-1#TRPBF	SSOP-16	H		$2.71
LTC6912HGN-2	SSOP-16	H	$3.79	$2.65
LTC6912HGN-2#PBF	SSOP-16	H	$3.79	$2.65
LTC6912HGN-2#TR	SSOP-16	H		$2.71
LTC6912HGN-2#TRPBF	SSOP-16	H		$2.71
LTC6912IDE-1	4x3 DFN-12	I	$3.86	$2.70
LTC6912IDE-1#PBF	4x3 DFN-12	I	$3.86	$2.70
LTC6912IDE-1#TR	4x3 DFN-12	I		$2.76
LTC6912IDE-1#TRPBF	4x3 DFN-12	I		$2.76
LTC6912IDE-2	4x3 DFN-12	I	$3.86	$2.70
LTC6912IDE-2#PBF	4x3 DFN-12	I	$3.86	$2.70
LTC6912IDE-2#TR	4x3 DFN-12	I		$2.76
LTC6912IDE-2#TRPBF	4x3 DFN-12	I		$2.76
LTC6912IGN-1	SSOP-16	I	$3.64	$2.55
LTC6912IGN-1#PBF	SSOP-16	I	$3.64	$2.55
LTC6912IGN-1#TR	SSOP-16	I		$2.61
LTC6912IGN-1#TRPBF	SSOP-16	I		$2.61
LTC6912IGN-2	SSOP-16	I	$3.64	$2.55
LTC6912IGN-2#PBF	SSOP-16	I	$3.64	$2.55
LTC6912IGN-2#TR	SSOP-16	I		$2.61
LTC6912IGN-2#TRPBF	SSOP-16	I		$2.61