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LTC2657BIFE-L16#TRPBF
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Product Detailed Parameters
- Description：IC DAC 16BIT V-OUT 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：16
- Number of D/A Converters：8
- Settling Time：9.1µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：I2C
- Reference Type：External, Internal
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：±2, ±0.3
- Architecture：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-TSSOP-EP
- Mounting Type：Surface Mount
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Overview
The LTC2657BIFE-L16#TRPBF is an octal 16-bit digital-to-analog converter (DAC) from Analog Devices, housed in a 20-lead thermally enhanced TSSOP package. It features rail-to-rail output buffers and an integrated precision reference yielding a full-scale output of 2.5V. The device operates on a single supply voltage ranging from 2.7V to 5.5V and supports I²C interfaces at standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±4 LSB, guaranteed monotonicity over temperature, and a typical settling time of 9.1µs for 16-bit accuracy.
Feature Summary
- Octal architecture with eight independent 16-bit DAC channels
- Integrated 1.25V reference providing 2.5V full-scale output
- Rail-to-rail output buffers with high drive capability
- I²C compatible serial interface supporting up to 400kHz clock rates
Applications
- Mobile communications systems
- Process control and industrial automation
- Instrumentation equipment
- Automatic test equipment
- Automotive applications
Procurement Notes
Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube packaging. Confirm the 'L' designation matches the required 2.7V to 5.5V supply range and 2.5V full-scale output. Ensure the 'FE' package type corresponds to the 20-lead thermally enhanced TSSOP footprint required for the design.
Selection Notes
Select this part when eight isolated analog outputs are required within a compact form factor. The -L option is suitable for lower voltage single-supply designs operating between 2.7V and 5.5V. Consider the external reference mode if a full-scale output exceeding 2.5V or different reference voltages are needed by doubling the external reference input.
Part Context
This component belongs to the LTC2657 family of octal DACs. Variants exist with different resolutions (12-bit), accuracy grades (C vs B), full-scale voltages (-H option for 4.096V), and packages (QFN). The B-grade indicates a maximum INL of ±4 LSB, while the C-grade offers tighter linearity specifications.
Replacement Considerations
Direct pin-compatible alternatives within the same family include the LTC2657BCFE-L16#TRPBF (commercial grade) or the LTC2657BIUFD-L16#TRPBF (QFN package). For higher accuracy requirements, consider the C-grade variants which offer improved linearity specifications.
