TLV1549IDG4

Analog To Digital Converters (ADC) Overview

The TLV1549IDG4 is a 10-bit successive-approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates on a single 3 V to 3.6 V supply and features an inherent sample-and-hold function with differential high-impedance reference inputs. The device provides a three-wire serial interface compatible with host processors, utilizing CS, I/O CLOCK, and DATA OUT pins. It achieves a maximum sampling rate of 38 kS/s with a conversion time of 21 μs. Total unadjusted error is limited to ±1 LSB across the industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Inherent sample-and-hold functionality eliminates external hold capacitors
• Terminal pinout compatibility with TLC1549 and TLC1549x series devices
• Differential reference inputs facilitate ratiometric conversion and noise isolation
• Three-wire serial interface supports multiple clock transfer modes

Analog To Digital Converters (ADC) Applications

• Battery-powered instrumentation systems requiring low power consumption
• Industrial process control data acquisition loops
• Portable measurement devices interfacing with microcontrollers
• Environmental monitoring sensors with serial communication protocols

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'DG4' indicates a lead-free RoHS-compliant SOIC-8 package variant. Confirm the 'I' designation matches the required -40°C to +85°C operating temperature range for your application environment. Ensure the datasheet revision SLAS071C corresponds to the manufacturing batch specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel 10-bit resolution is sufficient for the signal chain. The internal sample-and-hold simplifies PCB layout by reducing external component count. Verify that the host processor can support the required 3-state serial output timing and clock frequencies up to 2.1 MHz for optimal throughput.

Analog To Digital Converters (ADC) Part Context

This part belongs to the TLV1549 family of 10-bit ADCs from Texas Instruments. The 'I' grade specifies industrial temperature performance, while the 'DG4' suffix denotes the plastic small-outline package with lead-free termination. It serves as a direct pin-compatible replacement for legacy TLC1549 designs in 3.3 V systems.

Analog To Digital Converters (ADC) Replacement Considerations

The TLV1549ID is the non-RoHS equivalent. The TLC1549ID offers similar functionality but typically requires higher voltage supplies. Verify pin compatibility and logic level thresholds when substituting these parts in existing designs.