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参数资料
| 型号： | LTC6912IGN-2#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC PGA DIGITAL R-R DUAL 16SSOP |
| 标准包装： | 2,500 |
| 放大器类型： | 可编程增益 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 26 V/µs |
| 增益带宽积： | 30MHz |
| 电压 - 输入偏移： | 125µV |
| 电流 - 电源： | 2.25mA |
| 电流 - 输出 / 通道： | 35mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 10.5 V，±2.7 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 带卷 (TR) |
LTC6912
1
6912fa
FEATURES
TYPICAL APPLICATIO
U
■ 2 Channels with Independent Gain Control
LTC6912-1: (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 SPI
TM Interface
■ Extended Gain-Bandwidth at High Gains
■ Wired-OR Outputs Possible (2:1 Analog MUX
Function)
■ Low Power Hardware Shutdown (GN-16 Only,
2
A 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
■ Data Acquisition Systems
■
Dynamic Gain Changing
■ Automatic Ranging Circuits
■
Automatic Gain Control
Dual Programmable
Gain Amplifiers with
Serial Digital Interface
The LTC
6912 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
INA
AGND
INB
1
F
0.1
F
VINA
VINB
VOUTA = GAINA VINA
VOUTB = GAINB VINB
OUT A
OUT B
LTC6912-X
V+
3V
V–
SHDN
CS/LD
DATA
CLK
SHDN
CS/LD
DIN
5
6
7
8
10
9
DGND
DOUT
2
12
14
3
4
15
13
CHB
CHA
3-WIRE
SPI
INTERFACE
6912 TA01a
FREQUENCY (kHz)
0.1
GAIN
(dB)
40
30
20
10
0
–10
1
10
100
1000
6912 TA01b
10000
GAIN OF 64
GAIN OF 32
GAIN OF 16
GAIN OF 8
GAIN OF 4
GAIN OF 2
GAIN OF 1
VS = ±2.5V
VIN = 10mVRMS
LTC6912-2
Frequency Response
A Dual, Matched Low Noise PGA (16-Lead SSOP Package)
DESCRIPTIO
U
All other trademarks are the property of their respective owners.
APPLICATIO S
U
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| LTC6915 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain |
| LTC6915CDE | 功能描述:IC PGA DIGITAL PREC 0DRFT 12DFN RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:100 系列:- 放大器类型:通用 电路数:1 输出类型:- 转换速率:0.2 V/µs 增益带宽积:- -3db带宽:- 电流 - 输入偏压:100pA 电压 - 输入偏移:30µV 电流 - 电源:380µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):±2 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SO 包装:管件 |
| LTC6915CDE#PBF | 功能描述:IC PGA DIGITAL PREC 0DRFT 12DFN RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:100 系列:- 放大器类型:通用 电路数:1 输出类型:- 转换速率:0.2 V/µs 增益带宽积:- -3db带宽:- 电流 - 输入偏压:100pA 电压 - 输入偏移:30µV 电流 - 电源:380µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):±2 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SO 包装:管件 |
| LTC6915CDE#TR | 功能描述:IC PGA DIGITAL PREC 0DRFT 12DFN RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:100 系列:- 放大器类型:通用 电路数:1 输出类型:- 转换速率:0.2 V/µs 增益带宽积:- -3db带宽:- 电流 - 输入偏压:100pA 电压 - 输入偏移:30µV 电流 - 电源:380µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):±2 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SO 包装:管件 |
| LTC6915CDE#TRPBF | 功能描述:IC PGA DIGITAL PREC 0DRFT 12DFN RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:100 系列:- 放大器类型:通用 电路数:1 输出类型:- 转换速率:0.2 V/µs 增益带宽积:- -3db带宽:- 电流 - 输入偏压:100pA 电压 - 输入偏移:30µV 电流 - 电源:380µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):±2 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SO 包装:管件 |
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