TLV1544ID
TLV1544ID - 10-Bit 85 kSPS 4-Channel SAR ADC | Texas Instruments
The Texas Instruments TLV1544ID is a 10-bit, 4-channel successive-approximation analog-to-digital converter operating at up to 85 kSPS, with a serial interface compatible with TMS320 DSP, SPI, and QPSI devices, in a 16-pin SOIC package. It accepts four analog inputs and supports programmable power, power-down, and conversion-rate functions. The device is designed for low-voltage systems where compact conversion, flexible sampling control, and serial connectivity are required.
An ADC is an analog-to-digital converter, a semiconductor that transforms continuously varying analog voltages into numeric values for processing, storage, or control. The TLV1544 belongs to the SAR ADC category, where an internal comparator and successive approximation process each conversion. It is a four-channel ADC with serial control, providing an economical way to digitize several low-bandwidth sensor or control signals without using four separate converters. In system terms, the TLV1544 is an interface IC and data-conversion device that connects analog measurement circuitry to a digital controller.
The TLV1544 family provides a 10-bit resolution and an 85 kSPS conversion-rate capability. Its four analog inputs allow ratiometric measurement, scaling, and isolation of analog circuitry from logic and supply noise when used with the differential high-impedance reference inputs described by the manufacturer. Serial control through chip select, input/output clock, data input, and data output supports direct connection to compatible serial processors and DSPs. Programmable power, power-down, and conversion-rate controls help align converter operation with system energy requirements.
The TLV1544ID uses the 16-pin SOIC package identified by the verified distributor listing. Its serial interface and four-channel architecture make it useful for embedded acquisition systems, industrial monitoring, and low-power instrumentation. The 10-bit resolution provides 1,024 possible code values, while the 85 kSPS rate supports rapidly changing analog signals when the acquisition system provides adequate settling time, input filtering, and reference stability.
Typical applications include industrial sensor interfaces, portable measurement instruments, battery-powered monitoring equipment, process-control nodes, and DSP or microcontroller data-acquisition boards. Because the converter uses a serial interface, the PCB layout can remain compact when the digital controller supports compatible SPI-like signaling. Analog signal routing should remain short and separated from clock and data paths to minimize conversion error.
Designers should verify the complete electrical limits, reference configuration, input range, sampling timing, and pin functions in the manufacturer datasheet before layout. The verified product pages identify the TLV1544 as a low-voltage, 10-bit, 85 kSPS SAR ADC with four channels, but the supplied search data does not provide the complete timing, voltage, accuracy, power, and pin-function tables. The 16-pin SOIC footprint should therefore be confirmed against the current TI datasheet and application-specific reference design.
This page combines the verified distributor and manufacturer descriptions for the TLV1544ID with practical interface, application, comparison, and sourcing guidance. It highlights where the part is suitable, how its four-channel SAR architecture is used, and which specifications should be checked in the official datasheet before a production design is released.
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