|
Maxim > Solutions > Automotive: Body Computer
Current Sensing
Challenges: Needs to accept wide range of bi-/unidirectional small inputs riding on potentially elevated voltage ranges. Must withstand and diagnose sensor faults.
|
|
| Display |
Title/Parts |
Key Advantages |
| QV PDF |
Evaluation Kit for the MAX4080/MAX4081
MAX4080EVKIT
| |
| QV PDF |
76V, High-Side, Current-Sense Amplifiers with Voltage Output
MAX4080, MAX4081
| 76V, High-Side, Current-Sense Amplifiers with Voltage Output |
| QV PDF |
Ultra-Low Offset/Drift, Low-Noise, Precision SOT23 Amplifiers
MAX4238, MAX4239
| Precision, High-Speed, Rail-to-Rail Output, Ground-Sensing Amplifiers with Shutdown |
| QV PDF |
Low-Cost, Precision, High-Side Current-Sense Amplifier
MAX4172
| Low-Cost, Precision, High-Side Current-Sense Amplifier |
| 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 |
Package/Pins |
Oper. Temp.
(°C) |
| 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 |
| MAX4081 |
4.5 |
76 |
4.5 |
76 |
103 |
Yes |
|
600 |
|
0.6 |
150 |
|
-40 to +125 |
| MAX4172 |
0 |
32 |
3 |
32 |
800 |
No |
150 |
750 |
10 µA/mV |
2 |
800 |
|
-40 to +85 |
|
See All Current Sense Amplifiers (26)
|
| 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 |
|
| MAX4238 |
1 |
1 |
|
|
See All Operational Amplifiers (145)
|
|
|
