The INA185 current sense amplifier is designed for use in cost-sensitive space constrained applications. This device is a bidirectional, current-sense amplifier (also called a current-shunt monitor) that senses voltage drop across a current-sense resistor at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INA185 integrates a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift.
The INA185 operates from a single 2.7-V to 5.5-V power supply. The device draws a maximum supply current of 260 µA and features high slew rate and bandwidth making this device an excellent choice for many power-supply and motor-control applications.
The INA185 is available in a low profile 6-pin, SOT-563 package, and has a body size of size of only 2.56 mm2, including the device pins. All device options are specified over the extended operating temperature range of –40°C to +125°C.
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Part number | オーダー・オプション | Common mode voltage (Max) (V) | Common mode voltage (Min) (V) | Input offset (+/-) (Max) (uV) | Input offset drift (+/-) (Typ) (uV/C) | Gain (V/V) | Gain error (%) | Gain error drift (+/-) (Max) (ppm/°C) | CMRR (Min) (dB) | Bandwidth (kHz) | Supply voltage (Max) (V) | Supply voltage (Min) (V) | Iq (Max) (mA) | Number of channels (#) | Comparators (#) | Features | Rating | Operating temperature range (C) | Package Group | Package size: mm2:W x L (PKG) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
INA185 |
|
26 | -0.2 | 55 | 0.2 |
100
20 200 50 |
0.2 | 8 | 96 |
350
210 150 105 |
5.5 | 2.7 | 0.3 | 1 |
Bi-directional
Low-side Capable |
Catalog | -40 to 125 | SOT-5X3 | 6 | 6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6) | |
INA180 |
|
26 | -0.2 | 150 | 0.2 |
100
20 200 50 |
1 | 20 | 84 |
350
210 150 105 |
5.5 | 2.7 | 0.3 | 1 | 0 | Low-side Capable | Catalog | -40 to 125 | SOT-23 | 5 | 5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5) |
INA181 |
|
26 | -0.2 | 150 | 0.2 |
100
20 200 50 |
1 | 20 | 84 |
350
210 150 105 |
5.5 | 2.7 | 0.3 | 1 | 0 |
Bi-directional
Low-side Capable |
Catalog | -40 to 125 | SOT-23 | 6 | 6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6) |
INA199 |
|
26 | -0.1 | 150 | 0.1 |