TLC3545

14 位 200KSPS ADC，具有串行输出、自动断电和伪差动输入

The TLC3541 and are a family of high performance, 14-bit, low power, miniature CMOS analog-to-digital converters ADCs. These devices operate from a single 5-V supply. 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 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 TLC3541 and TLC3545 are designed to operate with low power consumption. The power saving feature is further enhanced with an auto-power down mode. This product family features a high-speed serial link to modern host processors with an external SCLK up to 15 MHz. Both families use a built-in oscillator as the conversion clock, providing a 2.67 us maximum conversion time.

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200-KSPS Sampling Rate

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Built-In Conversion Clock

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INL: ±1 LSB Max

DNL: ±1 LSB Max

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SINAD = 81.5 dB, SFDR = 95 dB

THD = 94 dB at 15 kHz fin, 200 KSPS

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SPI/DSP-Compatible Serial Interfaces With SCLK Input up to 15 MHz

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Single 5-V Supply

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Rail-to-Rail Analog Input With 500 kHz BW

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Two Input Options Available:

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TLC3541 – Single Channel Input

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TLC3545 – Single Channel, Pseudo-Differential Input

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TLC3541 Optimized DSP Interface – Requires FS Input Only

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Low Power With Auto-Power Down

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Operating Current: 3.5 mA

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Auto-Powerdown Current: 5 uA

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Pin Compatible 12-/14-/16-Bit Family in 8-Pin SOIC and MSOP Packages

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APPLICA ONS

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ATE System

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Industrial Process Control

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Measurement

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Motor Control