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Product Detailed Parameters
- Description：IC ADC 16BIT SAR 48QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：16
- Sampling Rate (Per Second)：2.5M
- Number of Inputs：1
- Input Type：Differential, Pseudo-Differential
- Data Interface：SPI, Parallel
- Configuration：S/H-ADC
- Ratio - S/H:ADC：1:01
- Number of A/D Converters：1
- Architecture：SAR
- Reference Type：External, Internal
- Voltage - Supply, Analog：5V
- Voltage - Supply, Digital：5V
- Features：Selectable Address
- Operating Temperature：-40°C ~ 85°C
- Package / Case：48-WFQFN Exposed Pad
- Supplier Device Package：48-QFN (7x7)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The LTC2389IUK-16#TRPBF is a 16-bit, 2.5Msps successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single 5V supply and features pin-configurable analog input ranges: ±4.096V fully differential, 0V to 4.096V pseudo-differential unipolar, and ±2.048V pseudo-differential bipolar. The device guarantees 16-bit resolution with no missing codes and achieves a maximum integral nonlinearity (INL) of ±1LSB. Key performance metrics include a typical signal-to-noise ratio (SNR) of 96.0dB in fully differential mode and 93.5dB in pseudo-differential modes at a 2kHz input frequency. It dissipates 162.5mW at full speed and includes an internal precision reference.
Feature Summary
- 16-Bit Resolution with No Missing Codes and ±1LSB Max INL
- 2.5Msps Throughput Rate with Zero Cycle Latency
- Pin-Configurable Input Ranges: Fully Differential, Pseudo-Differential Unipolar, and Bipolar
- Internal 4.096V Reference with ±20ppm/°C Max Temperature Coefficient
Applications
- Medical Imaging Systems
- High Speed Wide Dynamic Range Data Acquisition
- Industrial Process Control
- Instrumentation
- Automatic Test Equipment (ATE)
Procurement Notes
Verify the ordering suffix #TRPBF confirms tape and reel packaging for the I-grade temperature range (-40°C to 85°C). Confirm the 48-lead QFN package type matches the design requirements. Ensure compatibility with the required OVDD voltage levels for the digital interface.
Selection Notes
Select this component when a high-speed 16-bit SAR ADC with flexible input configurations is required. The internal reference simplifies board design compared to external reference solutions. Consider the QFN package thermal characteristics and ensure adequate PCB ground plane connection for the exposed pad.
Part Context
This part belongs to the LTC2389-16 family, which offers 16-bit performance. Other variants include the CLX/LQFP package for commercial temperatures and ILX/LQFP for industrial temperatures. The UK/QFN package provides a compact footprint suitable for space-constrained applications.
Replacement Considerations
Direct pin-compatible replacements within the same family include LTC2389CLX-16#PBF and LTC2389ILX-16#PBF, though these utilize LQFP packages instead of QFN. Verify that any substitute maintains the 2.5Msps throughput and 16-bit linearity specifications.
