TLC1514 - 10 位 400kSPS ADC，具有串行输出、SPI/DSP 兼容接口、关断状态、4 通道

TLC1514是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，TLC1514是10 位 400kSPS ADC，具有串行输出、SPI/DSP 兼容接口、关断状态、4 通道，本站介绍了TLC1514的封装应用图解、特点和优点、功能等，并给出了与TLC1514相关的TI元器件型号供参考。

TLC1514 - 10 位 400kSPS ADC，具有串行输出、SPI/DSP 兼容接口、关断状态、4 通道 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The TLC1518 and TLC1514 are a family of high-performance, 10-bit, low power, 1.4 us, CMOS SAR analog-to-digital converters (ADC) which operate from a single 5 V power supply. These devices have three digital inputs and a 3-state output [chip select (CS\), serial input-output clock (SCLK), serial data input (SDI), and serial data output (SDO)] that provide a direct 4-wire interface to the serial port of most popular host microprocessors (SPI interface). When interfaced with a DSP, a frame sync (FS) signal is used to indicate the start of a serial data frame.

In addition to a high-speed A/D converter and versatile control capability, these devices have an on-chip analog multiplexer that can select any analog inputs or one of three internal self-test voltages. The sample-and-hold function is automatically started after the fourth SCLK edge (normal sampling) or can be controlled by a special pin, CSTART\, to extend the sampling period (extended sampling). The normal sampling period can also be programmed as short (12 SCLKs) or as long (24 SCLKs) to accommodate faster SCLK operation popular among high-performance signal processors. The TLC1518 and TLC1514 are designed to operate with very low power consumption. The power-saving feature is further enhanced with software/hardware/auto power down modes and programmable conversion speeds. The converter uses the external SCLK as the source of the conversion clock. There is a 4-V internal reference available and an optional external reference can also be used to achieve maximum flexibility.

Free Data Converter Software Drivers for Code Composer Studio™

The data converter software drivers for TI's Code Composer Studio are just one of the benefits developers can realize from the eXpressDSP™ Open Plug-in Architecture. The data converter software drivers provide software support for TI's data converters and TI's TMS320C5000™ and TMS320C6000™ DSP platforms. To download the software drivers, please visit our Web site at www.ti.com/sc/dcplug-in

产品特性

Maximum Throughput 400 KSPS
Built-In Reference and 8× FIFO
Differential/Integral Nonlinearity Error: ±0.5 LSB Max
Signal-to-Noise and Distortion Ratio: 59 dB, fi = 12 kHz
Spurious Free Dynamic Range: 72 dB, fi = 12 kHz
SPI/DSP-Compatible Serial Interfaces With SCLK up to 20 MHz
Single Supply 5 Vdc
Analog Input Range 0 V to Supply Voltage With 500 kHz BW
Hardware Controlled and Programmable Sampling Period
Low Operating Current (4 mA at 5.5 V External Ref, 6 mA at 5.5 V, Internal Ref)
Power Down: Software/Hardware Power-Down Mode (1 uA Max, Ext Ref), Auto Power-Down Mode (5 uA, Ext Ref)
Programmable Auto-Channel Sweep
Pin Compatible, 12-Bit Upgrades Available (TLC2554, TLC2558)

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