TLV2548-EP

更新时间： 2024-11-23 12:47:11

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
38页	1117K
描述
3.0-V TO 5.5-V, 12-BIT, 200-KSPS, 4-/8-CHANNEL, LOW-POWER SERIAL ANALOG-TO-DIGITAL CONVERTER WITH AUTOPOWER-DOWN

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TLV2548-EP 数据手册

TLV2548-EP

www.ti.com

SLAS668 –OCTOBER 2009

3.0-V TO 5.5-V, 12-BIT, 200-KSPS, 4-/8-CHANNEL, LOW-POWER SERIAL

ANALOG-TO-DIGITAL CONVERTER WITH AUTOPOWER-DOWN

Check for Samples: TLV2548-EP

FEATURES

SUPPORTS DEFENSE, AEROSPACE,

AND MEDICAL APPLICATIONS

•

Maximum Throughput 200-KSPS

•

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

•

Built-In Reference, Conversion Clock and

8x FIFO

•

Differential/Integral Nonlinearity Error: ±1.2

LSB

Signal-to-Noise and Distortion Ratio: 70 dB,

f_i= 12 kHz

•

Spurious Free Dynamic Range: 75 dB,

f_i= 12 kHz

SPI (CPOL = 0, CPHA = 0)/DSP-Compatible

Serial Interfaces With SCLK up to 20 MHz

PW PACKAGE

(TOP VIEW)

•

Single Wide Range Supply 3.0 Vdc to 5.5 Vdc

SDO

SDI

20 CS

Analog Input Range 0 V to Supply Voltage

With 500-kHz BW

REFP

REFM

SCLK

EOC/(INT)

•

Hardware Controlled and Programmable

Sampling Period

PWDN

GND

CSTART

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

(1) Custom temperature ranges available

DESCRIPTION

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.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...38

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与TLV2548-EP相关器件

型号	品牌	获取价格	描述	数据表
TLV2548IDW	TI	获取价格	2.7 V TO 5.5 V, 12-BIT, 200 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERT
TLV2548IDWR	TI	获取价格	12 位 200kSPS ADC 系列输出、自动断电（软件和硬件）、低功耗、8 x FIF
TLV2548IDWRG4	TI	获取价格	12-Bit 200 kSPS ADC Ser. Out, Auto Pwrdn (S/W and H/W), Low Power W/8 x FIFO W/8 Ch. 20-SO
TLV2548IPW	TI	获取价格	2.7 V TO 5.5 V, 12-BIT, 200 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERT
TLV2548IPWG4	TI	获取价格	12 位 200kSPS ADC 系列输出、自动断电（软件和硬件）、低功耗、8 x FIF
TLV2548IPWLE	TI	获取价格	8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2548IPWR	TI	获取价格	12-Bit 200 kSPS ADC Ser. Out, Auto Pwrdn (S/W and H/W), Low Power W/8 x FIFO W/8 Ch. 20-TS
TLV2548IPWRG4	TI	获取价格	12-Bit 200 kSPS ADC Ser. Out, Auto Pwrdn (S/W and H/W), Low Power W/8 x FIFO W/8 Ch. 20-TS
TLV2548M	TI	获取价格	3-V TO 5.5-V, 12-BIT, 200-KSPS, 4-/8-CHANNEL, LOW-POWER SERIAL ANALOG-TO-DIGITAL CONVERTER
TLV2548MFK	TI	获取价格	3-V TO 5.5-V, 12-BIT, 200-KSPS, 4-/8-CHANNEL, LOW-POWER SERIAL ANALOG-TO-DIGITAL CONVERTER

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