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：AEC-Q100 -4V TO 110V BIDIRECTIO
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：Single-Ended
- Slew Rate：8V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：35 µA
- Voltage - Input Offset：25 µV
- Current - Supply：2.5mA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：20 V
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：Automotive
- Qualification：AEC-Q100
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
- -3db Bandwidth：1.1 MHz
Download product information
Overview
The INA241B2QDDFRQ1 is an AEC-Q100 qualified, bidirectional ultra-precise current sense amplifier with a gain of 20 V/V. It operates over a common-mode voltage range of -5V to 110V and supports supply voltages from 2.7V to 20V. Key electrical characteristics include a maximum gain error of ±0.1%, a typical DC CMRR of 130dB, and a small-signal bandwidth of 1.1MHz at all gains. The device features enhanced PWM rejection for switching systems and operates within a temperature range of -40°C to 125°C.
Feature Summary
- Enhanced PWM rejection circuitry minimizes output signal disturbance caused by large common-mode voltage transients in switching systems.
- Bidirectional operation allows accurate measurement of voltage drops across shunt resistors independent of the power supply voltage.
- High precision achieved through low offset voltage and high common-mode rejection ratio suitable for demanding automotive environments.
Applications
- Electric power steering (EPS)
- Starter/generator systems
- Regenerative braking circuits
Procurement Notes
Verify the specific suffix QDDFRQ1 corresponds to the SOT-23-8 package and tape-and-reel delivery format. Confirm that the B-grade accuracy specifications align with system requirements. Ensure the component meets AEC-Q100 Grade 1 reliability standards for the intended automotive application environment.
Selection Notes
Select this part when a fixed gain of 20 V/V is required for bidirectional sensing. Consider the B-grade accuracy limits if tighter tolerances are needed, as the A-grade variant offers superior performance. Verify that the 1.1MHz bandwidth and 1µs settling time meet the transient response requirements of the target application.
Part Context
This component belongs to the INA241x-Q1 family of ultra-precise current sense amplifiers designed for automotive use. The 'B' designation indicates a specific accuracy grade with higher gain error and offset voltage compared to the 'A' grade. The 'Q1' suffix confirms AEC-Q100 qualification for automotive reliability.
Replacement Considerations
INA241A2QDDFRQ1 offers higher precision with lower gain error and offset voltage. INA241B2DRQ1 provides the same electrical characteristics but utilizes a different SOIC-8 package instead of the SOT-23-8 form factor.
