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參數(shù)資料
| 型號(hào)： | ISL55191IRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| 中文描述： | OP-AMP, 800 uV OFFSET-MAX, 800 MHz BAND WIDTH, PDSO8 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, MO-220D, DFN-8 |
| 文件頁(yè)數(shù)： | 15/18頁(yè) |
| 文件大?。?/td> | 886K |
| 代理商： | ISL55191IRZ |
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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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL55191IRZ-T13 | Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| ISL55291 | Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL55191IRZ-T13 | 制造商:INTERSIL 制造商全稱: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 制造商全稱: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 開發(fā)工具 ISL55210 Eval Diff. Amp, Active Balun RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V |
| ISL55210IRTZ | 功能描述:差分放大器 ISL59603IRZ AUTO EQ OF COMPOSITE VID RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
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