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Product Detailed Parameters
- Description：IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Differential
- Number of Circuits：1
- Output Type：-
- Slew Rate：1V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：1 mV
- Current - Supply：260µA
- Current - Output / Channel：13 mA
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：-40°C ~ 125°C
- Grade：Automotive
- Qualification：AEC-Q100
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：100 kHz
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Overview
The INA148QDRQ1 is a single-channel automotive-grade differential amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 36 V and supports a common-mode voltage range of ±200 V. The device features a fixed gain of 1 V/V with a gain error of 0.075%. Key electrical specifications include a bandwidth of 100 kHz, a slew rate of 1 V/µs, and a common-mode rejection ratio (CMRR) of 70 dB. It draws 600 µA of supply current and functions reliably across an operating temperature range from -40°C to +125°C.
Feature Summary
- Supports high common-mode voltages up to ±200 V for robust signal conditioning in harsh environments
- Provides precise differential amplification with a fixed unity gain and low gain error
- Designed for automotive applications with AEC-Q100 qualification
Applications
- Automotive sensor signal conditioning
- High-side current sensing circuits
- Industrial process control systems
Procurement Notes
Verify the specific suffix 'QDRQ1' to confirm the SOIC-8 package and automotive grade status. Ensure the design accounts for the specified ±200 V common-mode input range and the 2.7 V to 36 V supply voltage limits. Confirm compliance with AEC-Q100 standards if required for the target application environment.
Selection Notes
Select this component when a fixed-gain differential amplifier capable of handling high common-mode voltages is required. It is suitable for applications needing a wide supply voltage range and operation in extreme temperatures. Consider the 100 kHz bandwidth and 70 dB CMRR for signal integrity requirements.
Part Context
This part belongs to the INA148 family of precision differential amplifiers. The 'Q1' suffix indicates automotive qualification, while 'DRQ1' specifies the surface-mount SOIC-8 package. It serves as a specialized solution for isolating and amplifying signals in high-voltage environments typical of automotive and industrial sectors.
Replacement Considerations
Check datasheets for alternative differential amplifiers with similar ±200 V common-mode ranges and fixed unity gain. Verify pin compatibility and thermal performance before substitution.
