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TLV2541_14

更新时间： 2024-11-03 02:58:23
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德州仪器 - TI /
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31页 1132K
描述
2.7-V TO 5.5-V, LOW-POWER, 12-BIT, 140/200 KSPS SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN

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TLV2541_14 数据手册

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TLV2541, TLV2542, TLV2545  
2.7-V TO 5.5-V, LOW-POWER, 12-BIT, 140/200 KSPS,  
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN  
SLAS245E −MARCH 2000 − REVISED APRIL 2010  
D
D
D
D
D
D
D
Maximum Throughput . . . 140/200 KSPS  
− TLV2542: Dual Channels With  
Autosweep  
− TLV2545: Single Channel With  
Pseudo-Differential Input  
Built-In Conversion Clock  
INL/DNL: 1 LSB Max, SINAD: 72 dB,  
SFDR: 85 dB, f = 20 kHz  
i
D
D
Low Power With Autopower Down  
− Operating Current: 1 mA at 2.7 V, 1.5 mA  
at 5 V  
SPI/DSP-Compatible Serial Interface  
Single Supply: 2.7 Vdc to 5.5 Vdc  
Rail-to-Rail Analog Input With 500 kHz BW  
Autopower Down: 2 μA at 2.7 V, 5 μA  
at 5 V  
Three Options Available:  
− TLV2541: Single Channel Input  
Small 8-Pin MSOP and SOIC Packages  
TOP VIEW  
TLV2541  
TOP VIEW  
TLV2542  
TOP VIEW  
TLV2545  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
CS  
VREF  
GND  
AIN  
SDO  
FS  
VDD  
SCLK  
CS  
VREF  
GND  
AIN0  
SDO  
SCLK  
VDD  
CS  
VREF  
GND  
SDO  
SCLK  
VDD  
AIN1  
AIN(+)  
AIN(−)  
description  
The TLV2541, TLV2542, and TLV2545 are a family of high performance, 12-bit, low power, miniature, CMOS  
analog-to-digital converters (ADC). The TLV254x family operates from a single 2.7-V to 5.5-V supply. Devices  
are available with single, dual, or single pseudo-differential inputs. Each device has a chip select (CS), serial  
clock (SCLK), and serial data output (SDO) that provides a direct 3-wire interface to the serial port of most  
popular host microprocessors (SPI interface). When interfaced with a TMS320t DSP, a frame sync signal (FS)  
can be used to indicate the start of a serial data frame on CS for all devices or FS for the TLV2541.  
TLV2541, TLV2542, and TLV2545 are designed to operate with very low power consumption. The power saving  
feature is further enhanced with an autopower-down mode. This product family features a high-speed serial link  
to modern host processors with SCLK up to 20 MHz. The maximum SCLK frequency is dependent upon the  
mode of operation (see Table 1). The TLV254x family uses the built-in oscillator as the conversion clock,  
providing a 3.5-μs conversion time.  
AVAILABLE OPTIONS  
PACKAGED DEVICES  
T
A
8-MSOP  
(DGK)  
8-SOIC  
(D)  
TLV2541CDGK (AGZ)  
TLV2542CDGK (AHB)  
TLV2545CDGK (AHD)  
TLV2541IDGK (AHA)  
TLV2542IDGK (AHC)  
TLV2545IDGK (AHE)  
0°C to 70°C  
TLV2541ID  
TLV2542ID  
TLV2545ID  
−40°C to 85°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.  
TMS320 is a trademark of Texas Instruments.  
Copyright © 2000 − 2003, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443  
1234567...31

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