低电压10位模拟 - 数字与串行控制和8个模拟输入转换器 LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTER WITH SERIAL CONTROL AND 8 ANALOG INPUTS
The TLV1548 is a CMOS 10-bit switched-capacitor successive-approximation SAR analog-to-digital A/D converter. The device has a chip select CS\, input-output clock I/O CLK, data input DATA IN and serial data output DATA OUT that provides 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 device allows high-speed data transfers from the host. The INV CLK\ input provides further timing flexibility for the serial interface.
In addition to a high-speed converter and versatile control capability, the device has an on-chip 11-channel multiplexer that can select any one of eight analog inputs or any one of three internal self-test voltages. The sample-and-hold function is automatic except for the extended sampling cycle, where the sampling cycle is started by the falling edge of asynchronous CSTART\\\\. At the end of the A/D conversion, the end-of-conversion EOC output goes high to indicate that the conversion is complete. The TLV1548 is designed to operate with a wide range of supply voltages with very low power consumption. The power saving feature is further enhanced with a software-programmed power-down mode and conversion rate. The converter incorporated in the device features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating temperature range.
The TLV1548 has eight analog input channels. The TLV1548Q is characterized for operation from 40°C to 125°C.
数字逻辑电平 SAR
电源电压DC 2.70V min
供电电流 600 µA
电路数 1
通道数 8
位数 10
采样率 87 ksps
功耗 0.95 mW
模数转换数ADC 1
输入数 8
工作温度Max 125 ℃
工作温度Min -40 ℃
输入通道数 8
输入电压 5.5 V
安装方式 Surface Mount
引脚数 20
封装 SSOP-20
长度 7.2 mm
宽度 5.3 mm
高度 1.95 mm
封装 SSOP-20
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
香港进出口证 NLR
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TLV1548QDBREP TI 德州仪器 | 当前型号 | 当前型号 |
TLV1548CDB 德州仪器 | 类似代替 | TLV1548QDBREP和TLV1548CDB的区别 |
TLV1548IDB 德州仪器 | 类似代替 | TLV1548QDBREP和TLV1548IDB的区别 |
TLV1548IDBR 德州仪器 | 类似代替 | TLV1548QDBREP和TLV1548IDBR的区别 |