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参数资料
| 型号： | ISL55291 |
| 厂商： | Intersil Corporation |
| 英文描述： | Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| 中文描述： | 单和双超低噪声，超低失真，轨到轨，低功耗运算放大器 |
| 文件页数： | 15/18页 |
| 文件大小： | 886K |
| 代理商： | ISL55291 |
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 V
REF
(+2.5V) defines the amplifier output
0A current sense reference voltage at one half the supply
voltage level (V
S
= +5VDC), and R
SENSE
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 R
SENSE
= 0.01
Ω
. The amplifier V
IO
error
(800μV max) and input bias offset current I
IO
error (0.7μA)
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.
R
SENSE
Ω
R
F
10k
Ω
IN-
FEEDBACK
IN+
ISL55191
R
L
R
T
OUT
V-
V+
+5VDC
PARASITIC
L TO R
VOUT
CURRENT
INPUT
CURRENT
INPUT
R
G+
100
Ω
R
G-
100
R
REF
10k
Ω
FIGURE 44. GROUND SIDE CURRENT SENSE AMPLIFIER
V
+2.5V
ISL55191, ISL55291
相关PDF资料 |
PDF描述 |
|---|---|
| ISL55291EVAL1Z | Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| ISL55291IUZ | Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| ISL55291IUZ-T13 | Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| ISL5571AIBZ | Access High Voltage Switch |
| ISL5571A | Access High Voltage Switch |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL55291EVAL1Z | 制造商:Intersil Corporation 功能描述:ISL55291 EVALUATION BOARD 1 - ROHS COMPLIANT - MSOP - Bulk |
| ISL55291IUZ | 功能描述:IC OPAMP LP DUAL ULT LN 10-MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:2pA 电压 - 输入偏移:1000µV 电流 - 电源:85µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):1.8 V ~ 6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOICN 包装:剪切带 (CT) 产品目录页面:680 (CN2011-ZH PDF) 其它名称:MCP6L04T-E/SLCT |
| ISL55291IUZ-T13 | 功能描述:IC OPAMP LP DUAL ULT LN 10-MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:2pA 电压 - 输入偏移:1000µV 电流 - 电源:85µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):1.8 V ~ 6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOICN 包装:剪切带 (CT) 产品目录页面:680 (CN2011-ZH PDF) 其它名称:MCP6L04T-E/SLCT |
| ISL5571A | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Access High Voltage Switch |
| ISL5571A/B-EVAL1 | 制造商:Intersil Corporation 功能描述:EVALUATION BOARD FOR ISL5571 LINE CARD ACCESS SWITCH - Bulk |
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