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LTC1605

16-Bit, 100ksps,

Sampling ADC

FEATURES

The LTC

verter that draws only 55mW (typical) from a single 5V

supply. This easy-to-use device includes sample-and-

hold, precision reference, switched capacitor successive

approximation A/D and trimmed internal clock.

The LTC1605’s input range is an industry standard

±10V.

Maximum DC specs include

±2.0LSB INL and 16-bits no

missing codes over temperature. An external reference

can be used if greater accuracy over temperature is

needed.

The ADC has a microprocessor compatible, 16-bit or two

byte parallel output port. A convert start input and a data

ready signal (BUSY) ease connections to FIFOs, DSPs and

microprocessors.

s

Sample Rate: 100ksps

s

Single 5V Supply

s

Bipolar Input Range:

s

Power Dissipation: 55mW Typ

s

Integral Nonlinearity:

±2.0LSB Max

s

Guaranteed No Missing Codes

s

Signal-to-Noise Ratio: 86dB Typ

s

Operates with Internal or External Reference

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Internal Synchronized Clock

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28-Pin 0.3” PDIP, SSOP and SW Packages

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Improved 2nd Source to ADS7805 and AD976

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Industrial Process Control

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Multiplexed Data Acquisition Systems

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High Speed Data Acquisition for PCs

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Digital Signal Processing

Low Power, 100kHz, 16-Bit Sampling ADC on 5V Supply

4k

20k

20k

200

Ω

REFERENCE

4k

10k

16-BIT

SAMPLING ADC

D15 TO D0

33.2k

2.2

µF

10

µF

0.1

µF

2.2

µF

±10V

INPUT

CAP

REF

AGND1

1

4

3

2

AGND2

5

DGND

14

CONTROL

LOGIC AND

TIMING

BUSY

BYTE

CS

R/C

28

27

6 TO 13

15 TO 22

26

25

24

23

DIGITAL

CONTROL

SIGNALS

1605 • TA01

16-BIT

OR 2 BYTE

PARALLEL

BUS

5V

BUFFER

Typical INL Curve

CODE

0

65535

1605 • TA02

16384

32768

49152

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

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