Maxim > 方案 > 汽车：车体控制计算机
电流检测
设计挑战：需要处理叠加在宽范围电压上的双向/单向小信号输入，必须能够承受传感器诊断故障。
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| 显示 |
标题/型号 |
关键优势 |
| QV PDF |
MAX4080/MAX4081评估板
MAX4080EVKIT
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| QV PDF |
76V、高边、电流检测放大器，带有电压输出
MAX4080, MAX4081
| 76V、高边电流检测放大器，提供电压输出 |
| QV PDF |
超低失调/漂移、低噪声、精密的SOT23封装放大器
MAX4238, MAX4239
| 高精度、高速、满摆幅输出、地检测放大器，具有关断功能 |
| QV PDF |
低成本、精密的、高边电流检测放大器
MAX4172
| 低成本、高精度、高边电流检测放大器 |
| Key Specifications: Current Sense Amplifiers |
| Part Number |
CMVR
(V) |
CMVR
(V) |
VCC
(V) |
VCC
(V) |
ICC
(µA) |
Bi-Dir. Curr. Sense |
VSENSE_FS
(mV) |
VOS @25°C
(µV) |
Gain |
Gain Accuracy @25°C
(%) |
BW
(kHz) |
Comp-
arators |
Oper. Temp.
(°C) |
Package/Pins |
| min |
max |
min |
max |
typ |
recomm. |
max |
max |
@ -3dB |
| MAX4080 |
4.5 |
76 |
4.5 |
76 |
75 |
No |
|
600 |
|
0.6 |
250 |
0 |
-40 to +125 |
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| MAX4081 |
4.5 |
76 |
4.5 |
76 |
103 |
Yes |
|
600 |
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0.6 |
150 |
-40 to +125 |
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| MAX4172 |
0 |
32 |
3 |
32 |
800 |
No |
150 |
750 |
10 µA/mV |
2 |
800 |
-40 to +85 |
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See All Current Sense Amplifiers (26)
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| Key Specifications: Operational Amplifiers |
| Part Number |
Amps. |
Rail to Rail |
AVCL |
VSUPPLY (Total)
(V) |
VSUPPLY (Total)
(V) |
ICC per Amp.
(µA) |
ICC per Amp.
(µA) |
VOS
(µV) |
CMRR @DC
(dB) |
PSRR @DC
(dB) |
Input IBIAS
(nA) |
Unity Gain BW
(MHz) |
en
(nV/√Hz) |
in
(pA/√Hz) |
Low Pwr. Shutdn |
Package/Pins |
| min |
min |
max |
typ |
max |
max |
typ |
typ |
max |
typ |
| MAX4239 |
1 |
Output Only |
10 |
2.7 |
5.5 |
600 |
850 |
2 |
140 |
140 |
0.01 |
6.5 |
25 |
0.001 |
Yes |
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| MAX4238 |
1 |
1 |
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See All Operational Amplifiers (145)
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