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LTC2632CTS8-LI8
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT TSOT23-8
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：8
- Number of D/A Converters：2
- Settling Time：3.5µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External, Internal
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：±0.05, ±0.5 (Max)
- Architecture：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
- Mounting Type：Surface Mount
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Overview
The LTC2632CTS8-LI8 is a dual 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in an 8-lead TSOT-23 package. It features an integrated precision reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 2.7V to 5.5V. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. Key specifications include a maximum integral nonlinearity (INL) of ±0.5 LSB, rail-to-rail output buffers, and guaranteed monotonicity. Upon power-up, the outputs reset to mid-scale.
Feature Summary
- Dual 8-bit DACs with integrated 2.5V full-scale reference
- SPI/MICROWIRE compatible 3-wire serial interface
- Rail-to-rail output buffers with ±0.5 LSB max INL
- Power-on reset to mid-scale in internal reference mode
Applications
- Mobile communications
- Process control and industrial automation
- Automatic test equipment
- Portable equipment
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current documentation to confirm availability and lead times. Ensure the component meets RoHS compliance requirements for the intended market. Cross-reference the part number with authorized distributors to confirm stock status and pricing before procurement.
Selection Notes
Select this model when an 8-bit resolution is sufficient for the application, offering higher accuracy than lower-resolution variants. The internal 2.5V reference simplifies design by eliminating external components. Ensure the system supply voltage remains within the 2.7V to 5.5V range. Consider the mid-scale power-on reset behavior if downstream circuits are sensitive to initial output states.
Part Context
This component belongs to the LTC2632 family, which includes 12-bit, 10-bit, and 8-bit versions. Variants differ by resolution, full-scale voltage (2.5V or 4.096V), and power-on reset behavior. The 'LI' suffix indicates an internal reference mode with mid-scale reset, while 'C' denotes the commercial temperature grade (0°C to 70°C).
Replacement Considerations
Direct substitutes within the same family include LTC2632CTS8-LZ8 (zero-scale reset) and LTC2632CTS8-LX8 (external reference mode). For different resolutions, consider LTC2632CTS8-LI10 or LTC2632CTS8-LI12. Verify pin compatibility and electrical parameters before substitution.
