Specifications
| Attribute | Value |
| Supplier | Texas Instruments,Rochester Electronics, LLC |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Obsolete |
| Number of Bits | 8 |
| Sampling Rate(Per Second) | 40k |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Ratio - S / H: ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | SAR |
| Reference Type | External |
| Voltage - Supply, Analog | 3V ~ 6V |
| Voltage - Supply, Digital | 3V ~ 6V |
| Operating Temperature | 0°C ~ 70°C |
| Supplier Device Package | 8-SOIC |
Overview
Description
The TLC549CDR is Texas Instruments’ 8-bit, low‑power successive‑approximation ADC (SAR) from the TLC549 family. It converts an analog input into an 8-bit digital word from a single supply. Designed for simple, low‑cost data acquisition in microcontroller projects and battery‑powered systems, it uses SAR architecture for fast conversions and offers an easy interface. The CDR suffix indicates the RoHS packaging (SOIC/related) and tape‑and‑reel packaging.
Key points:
- 8-bit resolution with SAR conversion
- Single‑supply operation (typical 2.7–5.5 V)
- Low quiescent current, suitable for low‑power apps
- Compatible timing with a clock input and a data output interface (parallel or serial variants exist)
Applications include sensors, instrumentation, control loops, and ADC front‑ends for MCUs. For exact electrical specs (input range, sampling rate, references, timing, and packaging), consult the TLC549CDR datasheet and TI’s product page.
Key points:
- 8-bit resolution with SAR conversion
- Single‑supply operation (typical 2.7–5.5 V)
- Low quiescent current, suitable for low‑power apps
- Compatible timing with a clock input and a data output interface (parallel or serial variants exist)
Applications include sensors, instrumentation, control loops, and ADC front‑ends for MCUs. For exact electrical specs (input range, sampling rate, references, timing, and packaging), consult the TLC549CDR datasheet and TI’s product page.
Equivalent
TLC549CDR is TI’s 8‑bit, voltage‑output DAC in an 8‑pin package. Drop‑in equivalents from other vendors include:
- Microchip MCP4901 (8‑bit SPI DAC, 8‑pin)
- Microchip MCP4902 (dual 8‑bit SPI DAC, 8‑pin)
Note: Use TI’s Cross Reference tool for exact matches and packaging options based on your required specs (voltage range, speed, interface).
- Microchip MCP4901 (8‑bit SPI DAC, 8‑pin)
- Microchip MCP4902 (dual 8‑bit SPI DAC, 8‑pin)
Note: Use TI’s Cross Reference tool for exact matches and packaging options based on your required specs (voltage range, speed, interface).
Features
Here are the key features of TLC549CDR (concise):
- 8-bit resolution (256 levels)
- Multiplying DAC (MDAC) with external reference defines full-scale
- Voltage output ranged from 0 to Vref
- Single-supply operation (typical 2.7V–5.5V)
- Monotonic over entire code range
- Low-power CMOS design
- Fast settling behavior (typical quick settle suitable for many control apps)
- 8-pin package (SOIC/DIP family), with Tape & Reel option (CDR suffix indicates packaging/reel)
Note: For exact specs (inputs, accuracy, settling, and voltage ranges), consult the Texas Instruments TLC549CDR datasheet.
- 8-bit resolution (256 levels)
- Multiplying DAC (MDAC) with external reference defines full-scale
- Voltage output ranged from 0 to Vref
- Single-supply operation (typical 2.7V–5.5V)
- Monotonic over entire code range
- Low-power CMOS design
- Fast settling behavior (typical quick settle suitable for many control apps)
- 8-pin package (SOIC/DIP family), with Tape & Reel option (CDR suffix indicates packaging/reel)
Note: For exact specs (inputs, accuracy, settling, and voltage ranges), consult the Texas Instruments TLC549CDR datasheet.
Pinout
- Pin count: 8 pins (SOIC-8 package, Tape & Reel).
- Function: 8‑bit digital-to-analog converter (DAC) with a serial input (SPI‑like) interface that converts a digital word into an analog output voltage (requires Vref/Vdd and GND).
- Function: 8‑bit digital-to-analog converter (DAC) with a serial input (SPI‑like) interface that converts a digital word into an analog output voltage (requires Vref/Vdd and GND).
Manufacturer
- Manufacturer: Texas Instruments (TI).
- What kind of company: A US-based multinational corporation that designs and manufactures semiconductors and integrated circuits, specializing in analog and embedded processing products; one of the world's largest semiconductor companies.
- What kind of company: A US-based multinational corporation that designs and manufactures semiconductors and integrated circuits, specializing in analog and embedded processing products; one of the world's largest semiconductor companies.
Application
TLC549CDR is an 8‑bit voltage-output digital-to-analog converter (DAC). Typical applications include:
- Generating precise analog voltages from digital data in data acquisition and instrumentation
- Waveform and signal generation in test equipment and function generators
- Programmable setpoints for control loops and servo/motor drive systems
- Gain/offset tuning and calibration for ADC front-ends
- Programmable analog front-ends in instrumentation and automated test equipment
- Reference generation and DAC-based control signals for sensors and measurement systems
Low-power operation makes it suitable for compact, battery-powered or space-constrained designs.
- Generating precise analog voltages from digital data in data acquisition and instrumentation
- Waveform and signal generation in test equipment and function generators
- Programmable setpoints for control loops and servo/motor drive systems
- Gain/offset tuning and calibration for ADC front-ends
- Programmable analog front-ends in instrumentation and automated test equipment
- Reference generation and DAC-based control signals for sensors and measurement systems
Low-power operation makes it suitable for compact, battery-powered or space-constrained designs.
Package
TLC549CDR is in an 8-pin SOIC (surface-mount) package, RoHS-compliant.
