TLV2548-EP
- Maximum Throughput 200-KSPS
- Built-In Reference, Conversion Clock and 8x FIFO
- Differential/Integral Nonlinearity Error: ±1.2 LSB
- Signal-to-Noise and Distortion Ratio: 70 dB, fi = 12 kHz
- Spurious Free Dynamic Range: 75 dB, fi = 12 kHz
- SPI (CPOL = 0, CPHA = 0)/DSP-Compatible Serial Interfaces
With SCLK up to 20 MHz - Single Wide Range Supply 3.0 Vdc to 5.5 Vdc
- Analog Input Range 0 V to Supply Voltage With 500-kHz BW
- Hardware Controlled and Programmable Sampling Period
- Low Operating Current (1.0 mA at 3.3 V, 2.0 mA at 5.5 V With External Ref,
1.7-mA at 3.3V, 2.4-mA at 5.5-V With Internal Ref) - Power Down: Software/Hardware
Power-Down Mode (1 µA Max, Ext Ref),
Autopower-Down Mode (1 µA, Ext Ref) - Programmable Auto-Channel Sweep
- SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Military (–55°C/125°C) Temperature Range(1)
- Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
(1) Custom temperature ranges available
The TLV2548 is a high performance, 12-bit low-power, 3.86-µs, CMOS analog-to-digital converter (ADC) which operates from a single 3.0-V to 5.5-V power supply. This device has 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 TI 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, this device has 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 TLV2548 is designed to operate with very low power consumption. The power-saving feature is further enhanced with software/hardware/autopower-down modes and programmable conversion speeds. The conversion clock (OSC) and reference are built-in. The converter can use the external SCLK as the source of the conversion clock to achieve higher (up to 2.8 µs when a 20-MHz SCLK is used) conversion speed. Two different internal reference voltages are available. An optional external reference can also be used to achieve maximum flexibility.
The TLV2548 is characterized for operation from –55°C to 125°C.
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技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | 2.7-V to 5.5-V 12-Bit 200 KSPS 4-/8-Channel Low-Power Serial Converter 数据表 | 2009年 10月 28日 | |||
* | VID | TLV2548-EP VID V6210603 | 2016年 6月 21日 | |||
电子书 | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015年 5月 21日 | ||||
应用手册 | Determining Minimum Acquisition Times for SAR ADCs, part 2 | 2011年 3月 17日 | ||||
应用手册 | Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) | 2010年 11月 10日 |
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TSSOP (PW) | 20 | Ultra Librarian |
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