LTC2380-16 datasheet(1/40 Pages) LINER

Part #	LTC2380-16

Description	16-Bit, 1Msps 8-Channel Differential 짹10.24V Input SoftSpan ADC with Wide Input Common Mode Range

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Manufacturer	LINER [Linear Technology]

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LTC2335-16

1

233516f

For more information www.linear.com/LTC2335-16

Typical applicaTion

FeaTures

DescripTion

16-Bit, 1Msps 8-Channel

Differential ±10.24V Input SoftSpan ADC

with Wide Input Common Mode Range

The LTC®2335-16 is a 16-bit, low noise 8-channel multi-

plexed successive approximation register (SAR) ADC with

differential, wide common mode range inputs. Operating

froma5Vlowvoltagesupply,flexiblehighvoltagesupplies,

andusingtheinternalreferenceandbuffer,thisSoftSpanTM

ADC can be configured on a conversion-by-conversion

basis to accept ±10.24V, 0V to 10.24V, ±5.12V, or 0V to

5.12V signals on any channel. Alternately, the ADC may

be programmed to cycle through a sequence of channels

and ranges without further user intervention.

The wide input common mode range and 118dB CMRR of

the LTC2335-16 analog inputs allow the ADC to directly

digitize a variety of signals, simplifying signal chain de-

sign. This input signal flexibility, combined with ±1LSB

INL, no missing codes at 16 bits, and 94.4dB SNR, makes

the LTC2335-16 an ideal choice for many high voltage

applications requiring wide dynamic range.

The LTC2335-16 supports pin-selectable SPI CMOS (1.8V

to 5V) and LVDS serial interfaces.

L

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

SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property

of their respective owners. Protected by U.S. Patents, including 7705765, 7961132, 8319673.

Other Patents pending.

applicaTions

n

1Msps Throughput

n

±1LSB INL (Maximum)

n

Guaranteed 16-Bit, No Missing Codes

n

Differential, Wide Common Mode Range Inputs

n

8-Channel Multiplexer with SoftSpan Input Ranges:

±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V

±12.5V, 0V to 12.5V, ±6.25V, 0V to 6.25V

n

94.4dB Single-Conversion SNR (Typical)

n

−109dB THD (Typical) at fIN = 2kHz

n

118dB CMRR, 125dB Active Crosstalk (Typical)

n

Rail-to-Rail Input Overdrive Tolerance

n

Programmable Sequencer with No-Latency Control

n

Guaranteed Operation to 125°C

n

Integrated Reference and Buffer (4.096V)

n

SPI CMOS (1.8V to 5V) and LVDS Serial I/O

n

No Pipeline Delay, No Cycle Latency

n

180mW Power Dissipation (Typical)

n

48-Lead (7mm × 7mm) LQFP Package

n

Programmable Logic Controllers

n

Industrial Process Control

n

Power Line Monitoring

n

Test and Measurement

Integral Nonlinearity vs

Output Code and Channel

0.1µF

2.2µF

0.1µF

1.8V TO 5V

5V

15V

–15V

SAMPLE

CLOCK

233516 TA01a

MUX

VCC

VDD

VDDLBYP OVDD

DIFFERENTIAL INPUTS IN+/IN– WITH

WIDE INPUT COMMON MODE RANGE

+10V

0V

–10V

TRUE BIPOLAR

+10V

0V

–10V

ARBITRARY

+10V

0V

–10V

UNIPOLAR

SDO

SCKO

SCKI

SDI

CS

BUSY

CNV

LVDS/CMOS

PD

IN0+

IN0–

IN7+

IN7–

16-BIT

SAMPLING

ADC

CMOS OR LVDS

I/O INTERFACE

0.1µF

REFIN

47µF

0.1µF

GND

REFBUF

VEE

LTC2335-16

+5V

0V

–5V

FULLY

DIFFERENTIAL

±10.24V RANGE

TRUE BIPOLAR DRIVE (IN– = 0V)

ALL CHANNELS

OUTPUT CODE

–32768

–16384

0

16384

32768

–1.00

–0.75

–0.50

–0.25

0

0.25

0.50

0.75

1.00

233516 TA01b

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