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LTC1867CGN

12-/16-Bit, 8-Channel 200ksps ADCs

Linear Technology 

LTC1863/LTC1867

12-/16-Bit, 8-Channel

200ksps ADCs

FEATURES

nn Sample Rate: 200ksps

nn 16-Bit No Missing Codes and ±2LSB Max INL

nn 8-Channel Multiplexer with:

nn Single Ended or Differential Inputs and

nn Unipolar or Bipolar Conversion Modes

nn SPI/MICROWIRE Serial I/O

nn Signal-to-Noise Ratio: 89dB

nn Single 5V Operation

nn On-Chip or External Reference

nn Low Power: 1.3mA at 200ksps, 0.76mA at 100ksps

nn Sleep Mode

nn Automatic Nap Mode Between Conversions

nn 16-Pin Narrow SSOP Package

APPLICATIONS

nn Industrial Process Control

nn High Speed Data Acquisition

nn Battery Operated Systems

nn Multiplexed Data Acquisition Systems

nn Imaging Systems

DESCRIPTION

The LTC®1863/LTC1867 are pin-compatible, 8-channel

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

reference. The ADCs typically draw only 1.3mA from a

single 5V supply.

The 8-channel input multiplexer can be configured for

either single-ended or differential inputs and unipolar

or bipolar conversions (or combinations thereof). The

automatic nap and sleep modes benefit power sensitive

applications.

The LTC1867’s DC performance is outstanding with a

±2LSB INL specification and no missing codes over tem-

perature. The signal-to-noise ratio (SNR) for the LTC1867

is typically 89dB, with the internal reference.

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

LTC1863/LTC1867 can be used in space-sensitive as well

as low-power applications.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

BLOCK DIAGRAM

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7/COM

1

2

3

4

5

6

7

8

ANALOG

INPUT

MUX

LTC1863/LTC1867

+ 12-/16-BIT

–

200ksps

ADC

SERIAL

PORT

INTERNAL

2.5V REF

16

15

14

VDD

GND

SDI

13 SDO

12 SCK

11 CS/CONV

10 VREF

9

REFCOMP

18637 BD

Integral Nonlinearity vs Output Code

(LTC1867)

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

0

16384 32768 49152

OUTPUT CODE

65536

18637 GO1

For more information www.linear.com/LTC1863

18637fc

1

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