Texas Instruments TLC3541/TLC3545 Analog-to-Digital Converters
Texas Instruments TLC3541/TLC3545 Analog-to-Digital Converters (ADCs) are a family of high-performance, 14-bit, low-power, miniature CMOS analog-to-digital converters (ADCs). These devices operate from a single 5V supply. These devices are available with single, dual, or single pseudo-differential inputs. All of these devices have a chip select (CS)\, serial clock (SCLK), and serial data output (SDO) that provides a direct 3-wire interface to the serial port of the most popular host microprocessors (SPI interface). When interfaced with a DSP, a frame sync signal (FS) is used to indicate the start of a serial data frame on either pin 1 (CS)\ or pin 7 (FS) for the TLC3541. The TLC3545 ADC connects to the DSP via pin 1 only (CS)\.
The Texas Instruments TLC3541/TLC3545 are designed to operate with low power consumption. The power saving feature is further enhanced with an auto-power down mode. This family features a high-speed serial link to modern host processors with an external SCLK up to 15MHz. Both families use a built-in oscillator as the conversion clock, providing a 2.67us maximum conversion time.
Features
- 200KSPS sampling rate
- Built-in conversion clock
- INL: ±1LSB max.
- DNL: ±1LSB max.
- SINAD = 81.5dB, SFDR = 95dB
- THD = 94dB at 15kHz fin, 200KSPS
- SPI/DSP-compatible serial interfaces with SCLK input up to 15MHz
- Single 5V supply
- Rail-to-rail analog input with 500kHz BW
- Two input options are available
- TLC3541 – single channel input
- TLC3545 – single channel, pseudo-differential input
- (TLC3541) optimized DSP interface – requires FS input only
- Low power with auto-power down
- 3.5mA operating current
- 5uA auto-power-down current
- Pin-compatible 12-/14-/16-bit family in 8-pin SOIC and MSOP packages
Applications
- ATE system
- Industrial process control
- Measurement
- Motor control
Functional Block Diagrams
Paskelbta: 2018-04-25
| Atnaujinta: 2022-12-08