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ADA4950-1YCPZ-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：2900V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：200 µV
- Current - Supply：9.5mA
- Current - Output / Channel：114 mA
- Voltage - Supply Span (Min)：3 V
- Voltage - Supply Span (Max)：11 V
- Operating Temperature：-40°C ~ 105°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：16-VFQFN Exposed Pad, CSP
- Supplier Device Package：16-LFCSP-VQ (3x3)
- -3db Bandwidth：750 MHz
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Overview
The ADA4950-1YCPZ-R2 is a low-power, selectable gain differential ADC driver manufactured by Analog Devices Inc. It operates within a supply range of +3 V to ±5 V and features an operating temperature range from −40°C to +105°C. The device provides selectable differential gains of 1, 2, and 3 via internal feedback networks. Key performance metrics include a small-signal bandwidth of 750 MHz at G = 1, a slew rate of 2900 V/µs, and a quiescent current of 9.5 mA per amplifier. It utilizes a 16-lead LFCSP package.
Feature Summary
- Selectable differential gains of 1, 2, and 3 using internal feedback networks connected externally.
- Adjustable output common-mode voltage via an internal common-mode feedback loop for ADC matching.
- High-speed operation with a 750 MHz small-signal bandwidth and fast settling time.
- Low harmonic distortion and low output voltage noise suitable for high-performance data acquisition.
Applications
- ADC drivers
- Single-ended-to-differential converters
- IF and baseband gain blocks
- Differential buffers
- Line drivers
Procurement Notes
Verify the specific ordering suffix YCPZ-R2 against the manufacturer's official documentation to confirm reel packaging and tape specifications. Ensure compatibility with the required PCB footprint for the 16-lead LFCSP package. Confirm that the selected component meets the necessary thermal resistance requirements for the intended application environment.
Selection Notes
Select this component when driving high-performance ADCs requiring single-ended-to-differential or differential-to-differential conversion. Consider the adjustable output common-mode voltage feature for precise input matching. Evaluate the power consumption of 9.5 mA per amplifier against system constraints. Verify that the 750 MHz bandwidth meets the signal frequency requirements.
Part Context
The ADA4950-1 is part of the ADA4950-x family, which includes the dual-channel ADA4950-2. These devices are fabricated using a proprietary silicon-germanium (SiGe) complementary bipolar process. This technology enables low distortion and noise levels while maintaining low power consumption. The family is designed for wide variety of data acquisition and signal processing applications.
Replacement Considerations
The ADA4932-1 serves as a reference point, though the ADA4950-1 offers selectable gain configurations not present in the ADA4932-1. Verify pinout compatibility and electrical parameter alignment before substitution.
FAQ
How is the differential gain configured?
Differential gains of 1, 2, and 3 are realized by connecting external components to the internal feedback networks provided on-chip.
What is the purpose of the VOCM pin?
The VOCM pin allows the user to adjust the output common-mode voltage via an internal feedback loop, enabling the output to match the input requirements of the connected ADC.
