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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.
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| Display |
Title / Parts |
Key Advantages |
| QV PDF |
Evaluation Kit for the MAX4080/MAX4081
MAX4080EVKIT
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| 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 (min) (V) |
CMVR (max) (V) |
VCC (min) (V) |
VCC (max) (V) |
ICC (typ) (µA) |
Bidirectional Current-Sense |
VSENSE_FS (recommended) (mV) |
VOS (max) @25°C (µV) |
AV (Gain) |
Gain Accuracy @25°C (max) (%) |
-3dB BW (kHz) |
Comparators |
Package |
Operating Temp. Range (°C) |
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MAX4080
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4.5
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76
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4.5
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76
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75
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No
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100
250
1000
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600
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5 V/V
20 V/V
60 V/V
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0.6
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250
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0
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µMAX/8
SOIC(N)/8
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-40 to +125
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MAX4081
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4.5
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76
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4.5
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76
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103
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Yes
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+/-50
+/-125
+/-500
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600
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5 V/V
20 V/V
60 V/V
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0.6
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150
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0
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µMAX/8
SOIC(N)/8
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-40 to +125
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MAX4172
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0
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32
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3
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32
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800
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No
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150
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750
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10 µA/mV
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2
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800
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0
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µMAX/8
SOIC(N)/8
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-40 to +85
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| See All Current Sense Amplifiers (25) |
| Key Specifications:
Operational Amplifiers |
| Part Number |
Amps Per Pkg. |
Rail to Rail |
Min. Stable Closed Loop Gain (V/V) |
Min. Total Supply (V) |
Max. Total Supply (V) |
Typ. Supply Current per Amp. (µA) |
Max. Supply Current per Amp. (µA) |
Max. VOS (µV) |
Typ. CMRR @ DC (dB) |
Typ PSRR @ DC (dB) |
Max. Input IBIAS (nA) |
Typ. Unity Gain BW (MHz) |
Input Voltage Noise Density (nV/√Hz) |
Input Current Noise Density (pA/√Hz) |
Low Power Shutdown |
Package |
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MAX4239
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1
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Output Only
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10
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2.7
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5.5
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600
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850
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2
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140
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140
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0.01
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6.5
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25
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0.001
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Yes
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SOIC(N)/8
SOT/6
TDFN-EP/6
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MAX4238
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1
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Output Only
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1
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2.7
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5.5
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600
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850
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2
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140
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140
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0.01
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1
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25
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0.001
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Yes
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SOIC(N)/8
SOT/6
TDFN-EP/6
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| See All Operational Amplifiers (144) |
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