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Product Detailed Parameters
- Description:IC DAC 12BIT A-OUT 38QFN
- Series:SoftSpan™
- Mfr:Analog Devices Inc.
- Package:Tube
- Number of Bits:12
- Number of D/A Converters:1
- Settling Time:2µs (Typ)
- Output Type:Current - Unbuffered
- Differential Output:Yes
- Data Interface:Parallel
- Reference Type:External
- Voltage - Supply, Analog:2.7V ~ 5.5V
- Voltage - Supply, Digital:2.7V ~ 5.5V
- INL/DNL (LSB):±1 (Max), ±1 (Max)
- Architecture:Multiplying DAC
- Operating Temperature:-40°C ~ 85°C
- Package / Case:38-WFQFN Exposed Pad
- Supplier Device Package:38-QFN (5x7)
- Mounting Type:Surface Mount
- Grade:-
- Qualification:-
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Overview
The LTC2751IUHF-12#PBF is a 12-bit multiplying digital-to-analog converter with parallel input and current output. It operates from a single 2.7V to 5.5V supply and features SoftSpan technology for six programmable output ranges: two unipolar (0V to 5V, 0V to 10V) and four bipolar (±2.5V, ±5V, ±10V, –2.5V to 7.5V). The device guarantees monotonicity over temperature, with a maximum integral nonlinearity of ±1 LSB and differential nonlinearity of ±1 LSB. It includes a bidirectional parallel interface for register readback, an asynchronous clear pin, and power-on reset to 0V. Supply current is typically 0.5µA.
Feature Summary
- 12-bit resolution with ±1 LSB INL and DNL guaranteed over temperature
- Six software-programmable output ranges via SoftSpan architecture
- Bidirectional parallel I/O interface with full register readback capability
- Low power consumption with 0.5µA typical supply current
Applications
- High-resolution offset and gain adjustment
- Process control and industrial automation systems
- Automatic test equipment
- Data acquisition systems
Procurement Notes
Verify the specific ordering suffix #PBF indicates tube packaging when sourcing this component. Confirm the 'I' grade designation matches the required -40°C to +85°C industrial operating temperature range for your application environment.
Selection Notes
Select this model for applications requiring precise current output with flexible voltage scaling. Ensure external reference voltages do not exceed ±15V on REF/RIN pins. For optimal performance, pair with precision operational amplifiers such as the LT1469 to maintain low glitch impulse and fast settling times.
Part Context
This part belongs to the LTC2751 family, which also includes 14-bit and 16-bit variants. The 12-bit version shares the same 38-lead QFN package and functional interface as higher-resolution models but offers lower resolution suitable for cost-sensitive or less demanding precision applications.
Replacement Considerations
Direct replacements within the same family include LTC2751CUHF-12#PBF for commercial temperature range or LTC2751IUHF-14#PBF/LTC2751IUHF-16#PBF for higher resolution. Note that pin compatibility is maintained across the series.
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