14-Channel

Analog

Multiplexer

Reference CTRL

12-to-1

Data

Selector

and Driver

Control Logic

and I/O

Counters

Input Address

Register

4

12

4

REF +

REF −

DATA

OUT

DATA IN

I/O CLOCK

CS

3

EOC

17

15

18

AIN0

AIN1

AIN2

AIN3

AIN4

AIN5

AIN6

AIN7

AIN8

AIN9

AIN10

1

2

3

4

5

6

7

8

9

11

12

14

13

19

Low Power

12-Bit

SAR ADC

Sample

and Hold

Output Data

Register

12

16

20

10

GND

Internal OSC

Self Test

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TLV2553

SLAS354C – SEPTEMBER 2001 – REVISED SEPTEMBER 2015

TLV2553 12-Bit, 200-KSPS, 11-Channel, Low-Power, Serial ADC

1 Features

3 Description

The

TLV2553

is

a

12-bit,

switched-capacitor,

1

•

12-Bit-Resolution A/D Converter

successive-approximation, analog-to-digital converter.

•

Up to 200 KSPS (150 KSPS for 3 V) Throughput

The ADC has three control inputs [chip select (CS),

Over Operating Temperature Range With 12-Bit

the input-output clock, and the address/control input

Output Mode

(DATAIN)], designed for communication with the

serial port of a host processor or peripheral through a

•

11 Analog Input Channels

serial 3-state output.

•

3 Built-In Self-Test Modes

In addition to the high-speed converter and versatile

•

Inherent Sample and Hold Function

control capability, the device has an on-chip 14-

•

Linearity Error, ±1 LSB Maximum

channel multiplexer that can select any one of 11

•

On-Chip Conversion Clock

inputs or any one of three internal self-test voltages

•

Unipolar or Bipolar Output Operation

using configuration register 1. The sample-and-hold

function is automatic. At the end of conversion, when

•

Programmable MSB or LSB First

programmed as EOC, the pin 19 output goes high to

•

Programmable Power Down

indicate that conversion is complete. The converter

•

Programmable Output Data Length

incorporated in the device features differential, high-

impedance reference inputs that facilitate ratiometric

•

SPI Compatible Serial Interface With I/O Clock

conversion, scaling, and isolation of analog circuitry

Frequencies up to 15 MHz (CPOL=0, CPHA=0)

from logic and supply noise. A switched-capacitor

design allows low-error conversion over the full

2 Applications

operating temperature range.

•

Process Control

The TLV2553I is characterized for operation from

•

Portable Data Logging

•

Battery-Powered Instruments

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TLV2553IPW

TSSOP (20)

6.50 mm × 4.40 mm

TLV2553IDW

SOIC (20)

12.80 mm × 7.50 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Block Diagram

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.