参数资料
| 型号： | ISL55190IBZ |
| 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： | 97 |
| 放大器类型： | 电压反馈 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 268 V/µs |
| 增益带宽积： | 800MHz |
| 电流 - 输入偏压： | 25µA |
| 电压 - 输入偏移： | 300µV |
| 电流 - 电源： | 30mA |
| 电流 - 输出 / 通道： | 130mA |
| 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： | 管件 |
15
FN6262.1
March 30, 2007
The ISL55190 single has a dedicated feedback pin which is
internally connected to the amplifier output and located next
to the inverting input pin. This additional output connection
enables the PC board trace capacitance at the inverting pin
to be minimized.
Current Sense Application Circuit
The schematic in Figure 47 provides an example of utilizing
the ISL55190 high speed performance with the ground
sensing input capability to implement a single-supply, G =1 0
differential low side current sense amplifier. This circuit can
be used to sense currents of either polarity. 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
(-1.1mV max) and input bias offset current (IIO) error (1.3A)
together contribute less than 15mV (150mA) at the output for
better than 0.3% full scale accuracy.
The amplifier’s high slew rate and fast pulse response make
this circuit suitable for low-side current sensing in PWM and
motor control applications. The excellent input overload
recovery response enables the circuit to maintain
performance in the presence of parasitic inductance that can
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+
ISL55190
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 47. GROUND SIDE CURRENT SENSE AMPLIFIER
VREF
+2.5V
ISL55190, ISL55290
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相关代理商/技术参数 |
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| ISL55190IBZ-T13 | 功能描述:IC OPAMP ULT L-NOISE/DIST 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:3 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:1pA 电压 - 输入偏移:70µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:Digi-Reel® 其它名称:MAX4475AUT#TG16DKR |
| ISL55190IRZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Low Power Op Amp |
| ISL55190IRZ-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, Low Power Op Amp |
| ISL55191 | 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 |
| ISL55191EVAL1Z | 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 |
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