ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC CURR SENSE 1 CIRCUIT 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：-
- Slew Rate：2V/µs
- Gain Bandwidth Product：850 kHz
- Current - Input Bias：20 µA
- Voltage - Input Offset：2 µV
- Current - Supply：680µA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：20 V
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-VSSOP
- -3db Bandwidth：-
Download product information
Overview
The INA2290A4IDGKT is a dual-channel, ultra-precise current-sense amplifier from Texas Instruments. It operates with a supply voltage of 2.7 V to 20 V and supports a common-mode input range of 2.7 V to 120 V. The device features a fixed gain of 200 V/V, a bandwidth of 850 kHz, and a slew rate of 2 V/µs. Key electrical characteristics include an offset voltage of ±12 µV maximum, a DC CMRR of 160 dB, and a quiescent current of 370 µA per channel. It is housed in an 8-pin VSSOP package.
Feature Summary
- Ultra-precise zero-drift architecture enables accurate measurement of low sense voltages across the extended operating temperature range.
- High common-mode rejection ratio ensures reliable performance under varying common-mode conditions.
- Wide common-mode voltage range allows for high-side sensing applications up to 120 V.
Applications
- Active antenna system mMIMO (AAS)
- Macro remote radio unit (RRU)
- 48-V rack server
- 48-V merchant network & server power supply
Procurement Notes
Verify the specific suffix IDGKT corresponds to the 8-pin VSSOP package and tape-and-reel packaging format. Confirm that the A4 designation matches the required 200 V/V gain setting for your circuit design. Ensure the component meets the -40°C to +125°C ambient temperature operating requirements specified in the datasheet.
Selection Notes
Select this component when high-side current sensing is required with a wide common-mode voltage range up to 120 V. The dual-channel configuration is suitable for applications needing two independent current monitoring paths within a compact footprint. The 200 V/V gain option is appropriate for detecting small differential voltages while maintaining high bandwidth for fast overcurrent protection.
Part Context
This part belongs to the INAx290 family of ultra-precise current-sense amplifiers. The INA2290 variant specifically provides dual channels, whereas the INA290 offers a single channel and the INA4290 provides four channels. All variants share similar electrical characteristics but differ in channel count and physical package dimensions.
Replacement Considerations
INA2290A2IDGKT: Dual-channel version with 50 V/V gain. INA2290A3IDGKT: Dual-channel version with 100 V/V gain. INA2290A5IDGKT: Dual-channel version with 500 V/V gain. These parts share the same package and pinout but offer different fixed gains.
FAQ
What is the maximum survival voltage for the INA2290A4IDGKT?
The device can withstand a survival common-mode voltage ranging from −20 V to +122 V.
Does the INA2290 support low-side current sensing?
No, the topology restricts operation to high-side, current-sensing applications only.
