LTC2311-16

1

231116fa

For more information www.linear.com/LTC2311-16

TYPICAL APPLICATION

FEATURES

DESCRIPTION

16-Bit, 5Msps

Differential Input ADC with Wide

Input Common Mode Range

The LTC®2311-16 is a low noise, high speed 16-bit

successive approximation register (SAR) ADC with

differential inputs and wide input common mode range.

Operating from a single 3.3V or 5V supply, the LTC2311-

for applications which require a wide dynamic range with

high common mode rejection. The LTC2311-16 achieves

±3LSB INL typical, no missing codes at 16 bits and 81dB

SNR typical.

TheLTC2311-16hasanonboardlowdrift(20ppm/°Cmax)

2.048Vor4.096Vtemperature-compensatedreferenceand

provides an external 1.25V buffered reference input. The

LTC2311-16 also has a high speed SPI-compatible serial

interface that supports CMOS or LVDS. The fast 5Msps

throughput with one-cycle latency makes the LTC2311-16

ideally suited for a wide variety of high speed applications.

The LTC2311-16 dissipates only 50mW with a 5V supply

and offers nap and sleep modes to reduce the power

consumption to 5μW for further power savings during

inactive periods.

APPLICATIONS

n

5Msps Throughput Rate

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±3LSB INL (Typ), ±8LSB INL Guaranteed

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Guaranteed 16-Bit, No Missing Codes

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Mode Range

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n

n

Guaranteed Operation –40°C to 125°C

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Single 3.3V or 5V Supply

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Low Drift (20ppm/°C Max) 2.048V or 4.096V Internal

Reference with 1.25V External Reference Input

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1.8V to 2.5V I/O Voltages

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CMOS or LVDS SPI-Compatible Serial I/O

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Small 16-Lead (4mm × 5mm) MSOP Package

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High Speed Data Acquisition Systems

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Communications

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Remote Data Acquisition

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Imaging

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Optical Networking

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Automotive

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Multiphase Motor Control

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.

BIPOLAR

25

25

47pF

UNIPOLAR

ARBITRARY

DIFFERENTIAL INPUTS

NO CONFIGURATION REQUIRED

DIFFERENTIAL

LTC2311-16

GND

1.8V TO 2.5V

231116 TA01a

1µF

3.3V OR 5V

0V

0V

0V

0V

REFIN

REFOUT

SDO

SCK

CNV

CMOS/LVDS

1µF

LVDS OR CMOS

CONFIGURABLE

I/O

10µF

10µF

SNR = 81.6dB

THD = –90dB

SINAD = 81.1dB

SFDR = 96dB

FREQUENCY (MHz)

0

0.5

1

1.5

2

2.5

–140

–120

–100

–80

–60

–40

–20

0

231116 TA01b