TLV1548IDB

低电压10位模拟数字转换器与串行控制和4/8模拟输入 LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS

description

The TLV1544 and TLV1548 are CMOS 10-bit switched-capacitor successive-approximation SAR analog-to-digital A/D converters. Each device has a chip select CS, input-output clock I/O CLK, data input DATA IN and serial data output DATA OUT that provide a direct 4-wire synchronous serial peripheral interface SPI, QSPI port of a host microprocessor. When interfacing with a TMS320 DSP, an additional frame sync signal FS indicates the start of a serial data frame. The devices allow high-speed data transfers from the host. The INV CLK input provides further timing flexibility for the serial interface.

• Conversion Time ≤ 10 µs

• 10-Bit-Resolution ADC

• Programmable Power-Down Mode . . . 1 µA

• Wide Range Single-Supply Operation of 2.7 V dc to 5.5 V dc

• Analog Input Range of 0 V to VCC

• Built-in Analog Multiplexer with 8 Analog Input Channels

• TMS320 DSP and Microprocessor SPI and QSPI Compatible Serial Interfaces

• End-of-Conversion EOC Flag

• Inherent Sample-and-Hold Function

• Built-In Self-Test Modes

• Programmable Power and Conversion Rate

• Asynchronous Start of Conversion for Extended Sampling

• Hardware I/O Clock Phase Adjust Input