LTC1286CS8PBF Linear Technology Corporation, LTC1286CS8PBF Datasheet

LTC1286CS8PBF

Manufacturer Part Number

LTC1286CS8PBF

Description

SOP8

Manufacturer

Linear Technology Corporation

Datasheets

1.LTC1286CS8PBF.pdf (24 pages)

2.LTC1298IS8-PBF.pdf (24 pages)

Specifications of LTC1286CS8PBF

Date_code

08+

Current page: 1 of 24
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FEATURES

APPLICATIONS

TYPICAL APPLICATIONS

0V TO 5V RANGE

ANALOG INPUT

12-Bit Resolution

8-Pin SOIC Plastic Package

Low Cost

Low Supply Current: 250 A Typ.

Auto Shutdown to 1nA Typ.

Guaranteed 3/4LSB Max DNL

Single Supply 5V to 9V Operation

On-Chip Sample-and-Hold

60 s Conversion Time

Sampling Rates:

I/O Compatible with SPI, Microwire, etc.

Differential Inputs (LTC1286)

2-Channel MUX (LTC1298)

3V Versions Available: LTC1285/LTC1288

Battery-Operated Systems

Remote Data Acquisition

Battery Monitoring

Handheld Terminal Interface

Temperature Measurement

Isolated Data Acquisition

12.5 ksps (LTC1286)

11.1 ksps (LTC1298)

Samples at 200Hz and Runs Off a 5V Supply

25 W, S0-8 Package, 12-Bit ADC

+IN

–IN

GND

REF

LTC1286

CS/SHDN

CLK

OUT

4.7 F

SERIAL DATA LINK

(e.g., 8051)

P1.4

P1.3

P1.2

LTC1286/98 • TA01

MPU

The LTC1286/LTC1298 are micropower, 12-bit, succes-

sive approximation sampling A/D converters. They typi-

cally draw only 250 A of supply current when converting

and automatically power down to a typical supply current

of 1nA whenever they are not performing conversions.

They are packaged in 8-pin SO packages and operate on

5V to 9V supplies. These 12-bit, switched-capacitor, suc-

cessive approximation ADCs include sample-and-holds.

The LTC1286 has a single differential analog input. The

LTC1298 offers a software selectable 2-channel MUX.

On-chip serial ports allow efficient data transfer to a wide

range of microprocessors and microcontrollers over three

wires. This, coupled with micropower consumption, makes

remote location possible and facilitates transmitting data

through isolation barriers.

These circuits can be used in ratiometric applications or

with an external reference. The high impedance analog

inputs and the ability to operate with reduced spans (to

1.5V full scale) allow direct connection to sensors and

transducers in many applications, eliminating the need for

gain stages.

DESCRIPTION

12-Bit A/D Converters In

1000

100

Micropower Sampling

Supply Current vs Sample Rate

0.1k

CLK

= 25°C

= V

= 200kHz

REF

SAMPLE FREQUENCY (Hz)

LTC1286/LTC1298

= 5V

S0-8 Packages

10k

LTC1286/98 • TA02

100k

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