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ADA4940-1ACPZ-R2
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Product Detailed Parameters
- Description：IC OPAMP DIFF 1 CIRCUIT 16LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Differential
- Number of Circuits：1
- Output Type：Differential
- Slew Rate：95V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：1.1 µA
- Voltage - Input Offset：60 µV
- Current - Supply：1.25mA
- Current - Output / Channel：46 mA
- Voltage - Supply Span (Min)：3 V
- Voltage - Supply Span (Max)：7 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：16-VFQFN Exposed Pad, CSP
- Supplier Device Package：16-LFCSP-VQ (3x3)
- -3db Bandwidth：260 MHz
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Overview
The ADA4940-1ACPZ-R2 is a fully differential amplifier from Analog Devices, designed as an ultralow power ADC driver. It features a small signal bandwidth of 260 MHz and a slew rate of 95 V/µs. The device operates on flexible power supplies ranging from 3 V to 7 V with a quiescent current of 1.25 mA per amplifier. It provides balanced outputs with adjustable common-mode voltage and includes a disable pin for power reduction. Packaged in a 16-lead LFCSP (3 mm × 3 mm), it supports operation from −40°C to +125°C.
Feature Summary
- Ultralow power consumption with 1.25 mA quiescent current per amplifier
- Extremely low harmonic distortion performance
- Low input voltage noise of 3.9 nV/√Hz
- Adjustable output common-mode voltage
Applications
- Low power PulSAR/SAR ADC drivers
- Single-ended-to-differential conversion
- Differential buffers
- Line drivers
- Medical imaging
Procurement Notes
Verify the specific package type and temperature range against the official datasheet before procurement. Confirm that the supply voltage requirements align with the application design. Ensure proper handling procedures are followed due to ESD sensitivity. Check for any specific ordering suffixes that may affect availability or specifications.
Selection Notes
Select this component for applications requiring high-speed signal processing with minimal power consumption. The adjustable output common-mode voltage allows compatibility with various ADC input ranges. Consider the thermal resistance and power dissipation limits when designing the PCB layout for optimal performance.
Part Context
The ADA4940-1 is part of the ADA4940 family of fully differential amplifiers. It is fabricated using Analog Devices' SiGe complementary bipolar process. This technology enables low distortion and noise performance suitable for driving high-resolution data converters.
Replacement Considerations
Refer to Table 1 in the datasheet for similar products such as AD8137, ADA4932-1, and ADA4941-1. Evaluate these alternatives based on bandwidth, power consumption, and noise specifications to ensure they meet the system requirements.
