参数资料
型号: LT1787HS8
厂商: Linear Technology
文件页数: 5/16页
文件大小: 0K
描述: IC PREC AMP CURRENT SENSE 8-SOIC
标准包装: 100
放大器类型: 电流检测
电路数: 1
电压 - 输入偏移: 40µV
电流 - 电源: 60µA
电流 - 输出 / 通道: 50µA
电压 - 电源,单路/双路(±): 2.5 V ~ 36 V,±1.25 V ~ 18 V
工作温度: -40°C ~ 125°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
13
LT1787/LT1787HV
1787fc
APPLICATIONS INFORMATION
WU
U
Adjusting Gain Setting
The LT1787 may be used in all operating modes with an
external resistor used in place of the internal 20k ROUT
VS
+ – V
S
(V)
0
OUTPUT
VOLTAGE
(V)
0.30
0.25
0.20
0.15
0.10
0.05
0
0.005 0.010
IDEAL
0.015 0.020
1787 F09
0.025 0.030
Figure 9. Expanded Scale of Unidirectional Output
resistor. When an external resistor is used, leave the VBIAS
pin floating or connected to the VOUT pin. This will remove
the internal ROUT from the circuit.
The voltage gain will be gm ROUT where gm is the
LT1787’s transconductance, 400
A/V typical. A nominal
gain of 40 may be obtained with an external 100k resistor
used in place of the internal 20k ROUT:
AV = gm ROUT = 400A/V 100k = 40
The transconductance gm is set by on-chip resistors on
the LT1787. These resistors match well but have loose
absolute tolerance. This will normally require that the
external gain setting resistor be trimmed for initial accu-
racy. After trimming, the temperature stability of the gm
and therefore gain will be –200ppm/
°C.
The only limitations placed upon the resistor choice is care
must be taken not to saturate the internal circuitry by
violating the VOMAX specification of VS + –0.75V.
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LT1787HS8#PBF 功能描述:IC PREC AMP CURRENT SENSE 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源,单路/双路(±):3 V ~ 32 V,±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP(0.173",4.40mm 宽) 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR
LT1787HS8#TR 功能描述:IC PREC AMP CURRENT SENSE 8-SOIC 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
LT1787HS8#TRPBF 功能描述:IC PREC AMP CURRENT SENSE 8-SOIC 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
LT1787HS8-TRPBF 制造商:Linear Technology 功能描述:
LT1787HV 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage, High-Side Current Sense