LTC2382CMS-16PBF datasheet, PDF

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LTC2382CMS-16PBF: Description16-Bit, 500ksps, Low Power SAR ADC with Serial Interface; File Size1MB，24 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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16-Bit, 500ksps, Low Power SAR ADC with Serial Interface

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LTC2382-16

16-Bit, 500ksps, Low Power

SAR ADC with Serial Interface

FEATURES

DESCRIPTION

The LTC

2382-16 is a low noise, low power, high speed

16-bit successive approximation register (SAR) ADC.

Operating from a 2.5V supply, the LTC2382-16 has a

±2.5V fully differential input range. The LTC2382-16

consumes only 6.5mW and achieves ±2LSB INL max, no

missing codes at 16-bits and 92dB SNR.

The LTC2382-16 has a high speed SPI-compatible serial

interface that supports 1.8V, 2.5V, 3.3V and 5V logic

while also featuring a daisychain mode. The fast 500ksps

throughput with no cycle latency makes the LTC2382-16

ideally suited for a wide variety of high speed applica-

tions. An internal oscillator sets the conversion time,

easing external timing considerations. The LTC2382-16

automatically powers down between conversions, lead-

ing to reduced power dissipation that scales with the

sampling rate.

The LTC2382-16 features a proprietary sampling

architecture that enables the ADC to begin acquiring the

next sample during the current conversion. The resulting

extended acquisition time of 1.25μs allows the use of

extremely low power ADC drivers.

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.

500ksps Throughput Rate

±2LSB INL (Max)

Guaranteed 16-Bit No Missing Codes

Low Power: 6.5mW at 500ksps, 13μW at 1ksps

92dB SNR (typ) at f

= 20kHz

Extended Acquisition Time of 1.25μs Allows Use of

Lower Power Drivers

Guaranteed Operation to 125°C

2.5V Supply

Fully Differential Input Range ±2.5V

External 2.5V Reference Input

No Pipeline Delay, No Cycle Latency

1.8V to 5V I/O Voltages

SPI-Compatible Serial I/O with Daisy-Chain Mode

Internal Conversion Clock

16-pin MSOP and 4mm

3mm DFN Packages

APPLICATIONS

Medical Imaging

High Speed Data Acquisition

Portable or Compact Instrumentation

Industrial Process Control

Low Power Battery-Operated Instrumentation

ATE

TYPICAL APPLICATION

2.5V

10μF

1.8V TO 5V

0.1μF

AMPLITUDE (dBFS)

ANALOG INPUT

0V TO 2.5V

50Ω

LT6350

50Ω

SINGLE-ENDED-

TO-DIFFERENTIAL

DRIVER

100Ω

3300pF

–

100Ω

REF

2.5V

GND

32k Point FFT f

= 500ksps, f

= 20kHz

–20

–40

–60

–80

–100

–120

–140

–160

–180

100

150

FREQUENCY (kHz)

200

250

SNR = 92.2dB

THD = –106dB

SINAD = 92dB

SFDR = 107dB

LTC2382-16

CHAIN

RDL/SDI

SDO

SCK

BUSY

CNV

238216 TA01

SAMPLE CLOCK

47μF

(X5R, 0805 SIZE)

238216 TA02a

238216f

LTC2382CMS-16PBF Related Products

	LTC2382CMS-16PBF	LTC2382CDE-16PBF	LTC2382IMS-16PBF	LTC2382IDE-16PBF	LTC2382HMS-16PBF
Description	16-Bit, 500ksps, Low Power SAR ADC with Serial Interface	16-Bit, 500ksps, Low Power SAR ADC with Serial Interface	16-Bit, 500ksps, Low Power SAR ADC with Serial Interface	16-Bit, 500ksps, Low Power SAR ADC with Serial Interface	16-Bit, 500ksps, Low Power SAR ADC with Serial Interface

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