LTC2323-16

1

232316fc

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Dual, 16-Bit, 5Msps

Differential Input ADC with Wide

Input Common Mode Range

The LTC®2323-16 is a low noise, high speed dual 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 LTC2323-16

applications which require a wide dynamic range with high

common mode rejection. The LTC2323-16 achieves ±4LSB

INL typical, no missing codes at 16 bits and 81dB SNR.

The LTC2323-16 has an onboard low drift (20ppm/°C max)

2.048V or 4.096V temperature-compensated reference.

The LTC2323-16 also has a high speed SPI-compatible

serial interface that supports CMOS or LVDS. The fast

5Msps per channel throughput with one-cycle latency

makes the LTC2323-16 ideally suited for a wide variety of

high speed applications. The LTC2323-16 dissipates only

40mW per channel 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

n

±4LSB INL (Typ)

n

Guaranteed 16-Bit, No Missing Codes

n

Mode Range

n

n

n

Guaranteed Operation to 125°C

n

Single 3.3V or 5V Supply

n

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

Reference

n

1.8V to 2.5V I/O Voltages

n

CMOS or LVDS SPI-Compatible Serial I/O

n

Power Dissipation 40mW/Ch (Typ)

n

Small 28-Lead (4mm

× 5mm) QFN Package

n

High Speed Data Acquisition Systems

n

Communications

n

Remote Data Acquisition

n

Imaging

n

Optical Networking

n

Automotive

n

Multiphase Motor Control

L

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

Devices, Inc. All other trademarks are the property of their respective owners.

BIPOLAR

25

25

220pF

UNIPOLAR

ARBITRARY

DIFFERENTIAL INPUTS

NO CONFIGURATION REQUIRED

DIFFERENTIAL

LTC2323-16

OGND

GND

1.8V TO 2.5V

232316 TA01a

10µF

3.3V OR 5V

SDO1

0V

0V

0V

0V

REFOUT2

VBYP1

REFOUT1

VBYP2

SDO2

CLKOUT

SCK

CNV

REFINT

CMOS/LVDS

1µF

TO CONTROL

LOGIC

(FPGA, CPLD,

DSP, ETC.)

1µF

1µF

10µF

10µF

232316 TA01b

FREQUENCY (MHz)

0

2.5

2

1

0.5

1.5

0

–20

–40

–60

–80

–100

–120

–140

SNR = 81.4dB

THD = –86.8dB

SINAD = 80.3dB

SFDR = 88.2dB