参数资料
| 型号： | ISL55191IBZ-T13 |
| 厂商： | Intersil |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP ULT L-NOISE/DIST 8-SOIC |
| 标准包装： | 2,500 |
| 放大器类型： | 电压反馈 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 260 V/µs |
| 增益带宽积： | 800MHz |
| 电流 - 输入偏压： | 12µA |
| 电压 - 输入偏移： | 170µV |
| 电流 - 电源： | 12mA |
| 电流 - 输出 / 通道： | 132mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 5 V，±1.5 V ~ 2.5 V |
| 工作温度： | -40°C ~ 85°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-SOIC |
| 包装： | 带卷 (TR) |
15
FN6263.1
March 30, 2007
Current Sense Application Circuit
The schematic in Figure 44 provides an example of utilizing
the ISL55191 high speed performance with the ground
sensing input capability to implement a single-supply, G = 10
differential low side current sense amplifier. The reference
voltage applied to VREF (+2.5V) defines the amplifier output
0A current sense reference voltage at one half the supply
voltage level (VS = +5VDC), and RSENSE sets the current
sense gain and full scale values. In this example the current
gain is 10A/V over a maximum current range of slightly less
than ±25A with RSENSE = 0.01Ω. The amplifier VIO error
(800V max) and input bias offset current IIO error (0.7A)
together contribute less than 10mV (100mA) at the output for
better than 0.2% full scale accuracy.
The amplifier’s high slew rate and fast pulse response make
this circuit suitable for low-side current sensing in PMWM
and motor control applications. The excellent input overload
recovery response enables the circuit to maintain
performance in the presence of parasitic inductance that
cause fast rise and falling edge spikes that can momentarily
overload the input stage of the amplifier.
RSENSE
0.01
Ω
RF
10k
Ω
IN-
IN+
ISL55191
RL
RT
OUT
V-
V+
FEEDBACK
+5VDC
PARASITIC
L TO R
VOUT
CURRENT
INPUT
CURRENT
INPUT
RG+
100
Ω
RG-
100
RREF
10k
Ω
FIGURE 44. GROUND SIDE CURRENT SENSE AMPLIFIER
VREF
+2.5V
ISL55191, ISL55291
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL55191IRZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| ISL55191IRZ-T13 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| ISL55210 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Wideband, Low-Power, Ultra-High Dynamic Range |
| ISL552101RTZ-EVALZ | 制造商:Intersil Corporation 功能描述:- Bulk |
| ISL55210-ABEVAL1Z | 功能描述:放大器 IC 开发工具 ISL55210 Eval Diff. Amp, Active Balun RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
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