TLC2551 Datasheet, PDF (1/23 Pages) Texas Instruments – 5 V, LOW POWER, 12-BIT, 400 KSPS, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN

TLC2551, TLC2552, TLC2555
5 V, LOW POWER, 12-BIT, 400 KSPS,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN
SLAS276 –MARCH 2000
D Maximum Throughput . . . 400 KSPS
D INL/DNL: ±1 LSB Max, SINAD: 72 dB,
f_i = 20 kHz, SFDR: 85 dB, f_i = 20 kHz
D SPI/DSP-Compatible Serial Interfaces With
SCLK up to 20 MHz
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 Optimized DSP Mode – Requires FS Only
D Low Power With Autopower Down
– Operating Current : 3.5 mA
Autopower Down: 8 µA
D Small 8-Pin MSOP and SOIC Packages
PACKAGE TOP VIEW
TLC2551
CS 1
V_REF 2
GND 3
AIN ⁴
8 SDO
7 FS
6 V_DD
5 _SCLK
TLC2552
CS/FS 1
V_REF 2
GND 3
AIN0 ⁴
8 SDO
7 SCLK
6 V_DD
5 _AIN1
TLC2555
CS/FS 1
V_REF 2
GND 3
AIN(+) ⁴
8 SDO
7 SCLK
6 V_DD
5 _AIN(–)
description
The TLC2551/2552/2555 are a family of high performance, 12-bit, low power, miniature 1.5 µs, 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. The TLC2551 has a 3-state output chip select (CS), serial output 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 DSP, a frame sync signal (FS) is used to indicate
the start of a serial data frame. The TLV2552/55 have a shared CS/FS terminal.
TLC2551/2/5 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. TLC255x family uses the SCLK as the conversion clock, thus providing
synchronous operation allowing a minimum conversion time of 1.5 µs using 20 MHz SCLK.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
8-MSOP
8-SOIC
(DGK)
(D)
0°C to 70°C
– 40°C to 85°C
TLC2551CDGK
TLC2552CDGK
TLC2555CDGK
TLC2551IDGK
TLC2552IDGK
TLC2555IDGK
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.
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 © 2000, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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