INA290A1IDCKR
Amplifiers & Comparators
Vcm - Common Mode Voltage: 120V
Common Mode Rejection Ratio(CMRR): 160dB
Ib - Input Bias Current: 20uA
Gain: 20V/V
Vos - Input Offset Voltage: 25uV
Slew Rate: 2V/us
Quiescent Current: 370uA
Technical Specifications
| Type | Description |
|---|---|
| Common Mode Rejection Ratio | 160 dB |
| Voffset V | 25 V |
| Quiescent Current | 370 µA |
| Gain Db | 20 dB |
| Vcm - Common Mode Voltage | 120V |
| Ib - Input Bias Current | 20uA |
| -3dB Bandwidth | 1.1MHz |
| Differential Voltage | ±30V |
| Type | Description |
|---|---|
| Channels | 1 |
| Slew Rate Vus | 2 V/µs |
| Operating Temperature | -40°C~+125°C |
| Voffset Drift Uv | 0.2 µV |
| Features | High-side detection;Zero drift / auto-zero;Analog output interface |
| Noise Nv | 50 nV |
| Single Supply | 2.7V~20V |
| Package / Case | SC-70-5 |
Product Introduction
The INAx290 is an ultra-precision current-sense amplifier that measures the voltage drop across a shunt resistor over a wide common-mode range of 2.7V to 120V. The combination of an ultra-low offset voltage of ±12μV (maximum), low gain error of ±0.1% (maximum), and high DC CMRR of 160dB (typical) enables ultra-high-precision current measurement accuracy. With a high bandwidth of 1.1MHz (at a gain of 20V/V) and AC CMRR of 85dB (at 50kHz), the INAx290 is suitable not only for DC current measurement but also for high-speed applications such as fast overcurrent protection.
The INAx290 provides ultra-precision current measurement capability by measuring the voltage drop across a shunt resistor over a wide common-mode range of 2.7V to 120V. INAx290 devices are available in space-saving packages. The single-channel INA290 comes in an SC-70 package, the dual-channel INA2290 in an MSOP-8 package, and the quad-channel INA4290 in a 4mm×4mm QFN package.
The INAx290 operates from a single 2.7V to 20V supply and consumes only 370μA of supply current per channel (typical) for single-channel devices. These devices offer five gain options: 20V/V, 50V/V, 100V/V, 200V/V, and 500V/V. The low offset voltage of the zero-drift architecture enables current sensing with low-ohmic shunts over an extended operating temperature range of −40°C to +125°C.
Features
- Wide common-mode voltage:
- Operating voltage: 2.7V to 120V
- Withstand voltage: -20V to +122V
- Excellent CMRR
- Accuracy:
- Gain:
- Gain error: ±0.1% (maximum)
- Gain drift: ±5ppm/°C (maximum)
- Offset voltage:
- Offset voltage: ±12μV (maximum)
- Temperature drift: ±0.2μV/°C (maximum)
- Available gain:
- A1 device: 20V/V
- A2 device: 50V/V
- A3 device: 100V/V
- A4 device: 200V/V
- A5 device: 500V/V
- High bandwidth: 1.1MHz
- Slew rate: 2V/μs
- Quiescent current: 370μA (per channel)
Applications
- Active Antenna System mMIMO (AAS)
- Macro Remote Radio Unit (RRU)
- 48V Rack Server
- 48V Commercial Network and Server Power Supply
- Test and Measurement
Datasheet
Alternative Parts
Common INA290A1IDCKR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542339000 |
| USHTS | 8542330001 |
| TARIC | 8542339000 |
| Type | Details |
|---|---|
| CAHTS | 8542330000 |
| BRHTS | 85423390 |
| INHTS | 85423300 |
| MXHTS | 8542.33.99 |
Sourcing Information
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