LTC1863L/LTC1867L

1

1863L7Lf

APPLICATIO S

BLOCK DIAGRA

FEATURES

DESCRIPTIO

Single Ended or Differential Inputs and

Unipolar or Bipolar Conversion Modes

Micropower, 3V,

12-/16-Bit, 8-Channel

175ksps ADCs

The LTC

12-/16-bit A/D converters with serial I/O and an internal

reference.

The 8-channel input multiplexer can be configured for

either single-ended or differential inputs and unipolar or

bipolar conversions (or combinations thereof). The ADCs

convert 0V to 2.5V unipolar inputs or ±1.25V bipolar

inputs. The ADCs typically draw only 750µA from a single

2.7V supply. The automatic nap and sleep modes benefit

power sensitive applications.

The LTC1867L’s DC performance is outstanding with a

±3LSB INL specification and 16-bit no missing codes over

temperature.

Housed in a compact, narrow 16-pin SSOP package, the

LTC1863L/LTC1867L can be used in space-sensitive as

well as low power applications.

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7/COM

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

GND

SDI

SDO

SCK

CS/CONV

1863L7L BD

SERIAL

PORT

ANALOG

INPUT

MUX

REFCOMP

9

INTERNAL

1.25V REF

LTC1863L/LTC1867L

12-/16-BIT

175ksps

ADC

+

–

Integral Nonlinearity vs Output Code

(LTC1867L)

, LTC and LT are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

OUTPUT CODE

0

0

0.5

1.0

65536

1863L7L G01

–0.5

–1.0

–2.0

16384

32768

49152

–1.5

2.0

1.5