TLC2551_16 Datasheet, PDF (1/28 Pages) Texas Instruments – 5-V, LOW-POWER, 12-BIT, 175/360 KSPS, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN

TLC2551, TLC2552, TLC2555
5-V, LOW-POWER, 12-BIT, 175/360 KSPS,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN
SLAS276D – MARCH 2000 – REVISED MAY 2003
D Maximum Throughput . . . 175/360 KSPS
D INL/DNL: ±1 LSB Max, SINAD: 72 dB,
SFDR: 85 dB, f_i = 20 kHz
D SPI/DSP-Compatible Serial Interface
D Single 5-V Supply
D Rail-to-Rail Analog Input With 500 kHz BW
D Three Options Available:
– TLC2551: Single Channel Input
– TLC2552: Dual Channels With
Autosweep
– TLC2555: Single Channel With
Pseudo-Differential Input
D Low Power With Autopower Down
– Operating Current: 3.5 mA
Autopower Down: 8 µA
D Small 8-Pin MSOP and SOIC Packages
TOP VIEW
TLC2551
CS 1
V_REF 2
GND 3
AIN ⁴
8 SDO
7 FS
6 V_DD
5 _SCLK
TOP VIEW
TLC2552
CS 1
V_REF 2
GND 3
AIN0 ⁴
8 SDO
7 SCLK
6 V_DD
5 _AIN1
TOP VIEW
TLC2555
CS 1
V_REF 2
GND 3
AIN(+) ⁴
8 SDO
7 SCLK
6 V_DD
5 _AIN(–)
description
The TLC2551, TLC2552, and TLC2555 are a family of high performance, 12-bit, low-power, miniature, CMOS
analog-to-digital converters (ADC). The TLC255x family uses a 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 TMS320 DSP, a frame sync signal (FS) can be used to indicate the
start of a serial data frame on CS for all devices or on FS for the TLC2551.
The TLC2551, TLC2552, and TLC2555 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 TLC255x family uses SCLK as the conversion clock, which
provides synchronous operation and a minimum conversion time of 1.5 µs using a 20-MHz SCLK.
TA
0°C to 70°C
– 40°C to 85°C
AVAILABLE OPTIONS
PACKAGED DEVICES
8-MSOP
(DGK)
8-SOIC
(D)
TLC2551CDGK (AHF)
TLC2552CDGK (AHH)
TLC2555CDGK (AHJ)
TLC2551IDGK (AHG)
TLC2552IDGK (AHI)
TLC2555IDGK (AHK)
TLC2551ID
TLC2552ID
TLC2555ID
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.
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.
Copyright  2002 – 2003, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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