Current Sense Amplifiers
Analog Devices’ current sense amplifiers offer excellent performance for a wide array of automotive and power management applications. These devices accurately amplify small voltages in the presence of large common-mode voltage, and provide high bandwidth, as well as level shifting and bidirectional capability. Excellent dc and ac accuracy over a wide temperature range from –40°C to +125°C minimizes errors in your measurement loop while not sacrificing on cost and package size.
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Frequently Asked Questions
- How does the input offset voltage (VOS) of an amplifier affect my circuit?
- What is the output headroom or voltage range of an amplifier and how is it determined?
- Why is my amplifier oscillating?
- What is the full power bandwidth of an amplifier?
- I'm applying a dc voltage to the input of my amplifier, but I'm getting an oscillating signal out. What can be causing this?
- What does single-supply amplifer really mean?
- Why can't I get my amplifier to go to my full-scale output voltage?
- What is a rail-to-rail amplifier?
- How does input current noise affect my amplifier circuit?
- What is meant by the noise gain of an amplifier?
- What are op amp input and output common-mode and differential voltage ranges and how are they determined?
- What is the small signal bandwidth of an amplifier?
- How does the open-loop gain of an amplifier affect my circuit?
- What is unity-gain bandwidth?
- What is amplifier RF rectification?
- Why is my output signal clipping?
- Why is my input signal clipping?
- I have a large unexplained offset in my circuit. What can be causing it?
- How does the input voltage noise of an amplifier affect my circuit?
- What is input common-mode voltage range (CMVR)?
- Can I exceed the parameters specified in the absolute maximum ratings table?
- Why doesn't my amplifier output go to zero when I ground the input?
Current Sense Amplifiers
| SortOrder | Part# | Common Mode In (min) (V) | Common Mode In (max) (V) | Vos (max) (V) | Gain (V/V) | BW -3 dB (typ) (Hz) | Vs span (min) (V) | Vs span (max) (V) | Automotive | Filter Option | Vin direction | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LTC6115 | 0 | 100 | 500µ | Resistor Set | 500k | 3.3 | 100 | No | No | Unidirectional | $1.62 (LTC6115IMS#PBF) |
| 2 | AD8410 | -2 | 70 | 400µ | 20 | 2M | 2.9 | 5.5 | Yes | - | Bidirectional | - |
| 3 | AD8209A | -2 | 50 | 4m | 14 | 100k | 4.5 | 5.5 | Yes | Yes | Unidirectional | $1.67 (AD8209AWBRMZ) |
| 4 | LTC2946 | 0 | 100 | 77µ | Voltage to I²C | - | 2.7 | 100 | No | No | Unidirectional | $3.95 (LTC2946CDE#PBF) |
| 5 | RH6105 | 2.85 | 36 | 300µ | Resistor Set | 10k | 2.85 | 36 | No | No | Unidirectional | - |
| 6 | LT6119 | 2.7 | 60 | 200µ | Resistor Set | 100k | 2.7 | 60 | No | No | Unidirectional | $2.00 (LT6119IMS-1#PBF) |
| 7 | LT6118 | 2.7 | 60 | 200µ | Resistor Set | 100k | 2.7 | 60 | No | No | Unidirectional | $1.58 (LT6118IMS8#PBF) |
| 8 | AD8418A | -2 | 70 | 200µ | 20 | 250k | 2.7 | 5.5 | Yes | - | Bidirectional | $0.99 (AD8418ABRMZ) |
| 9 | AD8417 | -2 | 70 | 400µ | 60 | 250k | 2.7 | 5.5 | Yes | - | Bidirectional | $0.99 (AD8417BRMZ) |
| 10 | AD8418 | -2 | 70 | 400µ | 20 | 250k | 2.7 | 5.5 | Yes | No | Bidirectional | $0.89 (AD8418BRMZ) |
| 11 | LTC2945 | 0 | 80 | 50µ | Voltage to I²C | - | 2.7 | 80 | No | No | Unidirectional | $3.57 (LTC2945CMS#PBF) |
| 12 | LTC2991 | 2.9 | 5.5 | - | Voltage to I²C | - | 3 | 5.5 | No | No | Unidirectional | $4.50 (LTC2991CMS#PBF) |
| 13 | LT6109 | 2.7 | 60 | 450µ | Resistor Set | 100k | 2.7 | 60 | No | No | Unidirectional | $1.84 (LT6109IMS-1#PBF) |
| 14 | LT6108 | 2.7 | 60 | 350µ | Resistor Set | 100k | 2.7 | 60 | No | No | Unidirectional | $1.49 (LT6108IMS8-1#PBF) |
| 15 | AD8219 | 4 | 80 | 300µ | 60 | 500k | 4 | 80 | No | No | Unidirectional | $0.95 (AD8219BRMZ) |
| 16 | AD8218 | 4 | 80 | 75µ | 20 | 450k | 4 | 80 | No | No | Bidirectional | $1.05 (AD8218BRMZ) |
| 17 | LT1999-50 | -5 | 80 | 750µ | 50 | 200k | 4.5 | 5.5 | No | No | Bidirectional | $1.92 (LT1999CS8-50#PBF) |
| 18 | LT1999-20 | -5 | 80 | 750µ | 20 | 200k | 4.5 | 5.5 | No | No | Bidirectional | $1.92 (LT1999CS8-20#PBF) |
| 19 | LT1999-10 | -5 | 80 | 750µ | 10 | 200k | 4.5 | 5.5 | No | No | Bidirectional | $1.92 (LT1999CS8-10#PBF) |
| 20 | LTC2990 | 2.9 | 5.5 | - | Voltage to I²C | - | 3 | 5.5 | No | No | Unidirectional | $2.25 (LTC2990CMS#PBF) |
| 21 | AD8217 | 4.5 | 80 | 300µ | 20 | 500k | 4.5 | 80 | No | No | Unidirectional | $0.99 (AD8217BRMZ) |
| 22 | AD8207 | -4 | 65 | 400µ | 20 | 150k | 3.3 | 5.5 | Yes | - | Bidirectional | $2.29 (AD8207WBRZ) |
| 23 | AD8208 | -2 | 45 | 4m | 20 | 80k | 4.5 | 5.5 | Yes | - | Unidirectional | $1.67 (AD8208WBRMZ) |
| 24 | AD8209 | -2 | 45 | 4m | 14 | 80k | 4.5 | 5.5 | Yes | - | Unidirectional | $1.67 (AD8209WBRMZ) |
| 25 | AD8215 | -2 | 65 | 2.5m | 20 | 450k | 4.5 | 5.5 | Yes | No | Unidirectional | $1.21 (AD8215YRZ) |
| 26 | LT6107 | 2.7 | 36 | 250µ | Resistor Set | 20k | 2.7 | 36 | No | No | Unidirectional | $1.20 (LT6107HS5#TRPBF) |
| 27 | LT6105 | 2.85 | 36 | 300µ | Resistor Set | 10k | 2.85 | 36 | No | No | Unidirectional | $0.99 (LT6105CDCB#TRPBF) |
| 28 | AD8216 | -4 | 65 | 3m | 3 | 3M | 4.5 | 5.5 | Yes | No | Bidirectional | $1.62 (AD8216YRZ) |
| 29 | AD8211 | -2 | 65 | 2.5m | 20 | 500k | 4.5 | 5.5 | Yes | No | Unidirectional | $0.81 (AD8211YRJZ-RL) |
| 30 | LTC6102HV | 5 | 100 | 10µ | Resistor Set | 200k | 5 | 100 | No | No | Unidirectional | $2.06 (LTC6102HVCDD#PBF) |
| 31 | LTC6102 | 4 | 60 | 10µ | Resistor Set | 200k | 4 | 60 | No | No | Unidirectional | $1.72 (LTC6102CDD#PBF) |
| 32 | LT6106 | 2.7 | 36 | 250µ | Resistor Set | 20k | 2.7 | 36 | Yes | No | Unidirectional | $0.82 (LT6106CS5#TRPBF) |
| 33 | AD8213 | -2 | 65 | 2.2m | 20 | 500k | 4.5 | 5.5 | Yes | Yes | Unidirectional | $2.01 (AD8213YRMZ) |
| 34 | AD8212 | 7 | 65 | 3m | Resistor Set | 1M | 7 | 65 | Yes | No | Unidirectional | $1.32 (AD8212YRMZ) |
| 35 | LTC4151 | 7 | 80 | 100µ | Voltage to I²C | - | 7 | 80 | No | No | Unidirectional | $2.60 (LTC4151CDD#PBF) |
| 36 | LTC6104 | 4 | 60 | 450µ | Resistor Set | 200k | 4 | 60 | No | No | Bidirectional | $1.38 (LTC6104CMS8#PBF) |
| 37 | LTC6103 | 4 | 60 | 450µ | Resistor Set | 140k | 4 | 60 | No | No | Unidirectional | $1.66 (LTC6103CMS8#PBF) |
| 38 | AD8214 | - | - | 8m | Comparator | - | 5 | 65 | Yes | No | Unidirectional | $0.76 (AD8214ARMZ) |
| 39 | ADM4073 | 2 | 28 | - | 20 | 1.8M | 3 | 28 | No | No | Unidirectional | $1.02 (ADM4073FWRJZ-REEL7) |
| 40 | AD8210 | -2 | 65 | 1.8m | 20 | 500k | 4.5 | 5.5 | Yes | No | Bidirectional | $1.81 (AD8210YRZ) |
| 41 | AD8206 | -2 | 65 | 4.5m | 20 | 100k | 4.5 | 5.5 | Yes | No | Bidirectional | $1.37 (AD8206YRZ) |
| 42 | LT6100 | 2.7 | 36 | 300µ | 10, 12.5, 20, 25, 40, 50 | 15k | 2.7 | 36 | No | No | Unidirectional | $1.18 (LT6100CDD#PBF) |
| 43 | AD8203 | -6 | 30 | 2m | 14 | 60k | 3.5 | 12 | No | Yes | Unidirectional | $1.58 (AD8203YRMZ) |
| 44 | AD8202 | -6 | 28 | 2m | 20 | 50k | 3.5 | 12 | Yes | Yes | Unidirectional | $1.51 (AD8202YRMZ) |
| 45 | AD8205 | -2 | 65 | 4.5m | 50 | 50k | 4.5 | 5.5 | Yes | No | Bidirectional | $1.51 (AD8205YRZ) |
| 46 | LTC6101HV | 5 | 100 | 300µ | Resistor Set | 200k | 5 | 100 | No | No | Unidirectional | $1.30 (LTC6101HVCCS5#TRPBF) |
| 47 | LTC6101 | 4 | 60 | 300µ | Resistor Set | 200k | 4 | 60 | No | No | Unidirectional | $1.04 (LTC6101CCS5#TRPBF) |
| 48 | LTC4150 | 2.7 | 8.5 | 100µ | Voltage to Frequency | - | 2.7 | 8.5 | No | No | Bidirectional | $1.50 (LTC4150CMS#PBF) |
| 49 | LT1787HV | 2.5 | 60 | 75µ | 8 | 11.5k | 2.5 | 60 | No | No | Bidirectional | $2.90 (LT1787HVCS8#PBF) |
| 50 | LT1787 | 2.5 | 36 | 75µ | 8 | 11.5k | 2.5 | 36 | No | No | Bidirectional | $2.05 (LT1787CS8#PBF) |
| 51 | AD22057 | 1 | 24 | - | 20 | 30k | 3 | 36 | No | Yes | Bidirectional | $5.09 (AD22057RZ) |
| 52 | AD626 | -24 | 24 | - | 10, 100 | 100k | 2.4 | 10 | No | Yes | Unidirectional | $3.77 (AD626ARZ) |
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