LTC1419CSW datasheet, PDF - EEWORLD Datasheet

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LTC1419CSW: Description14-Bit, 800ksps Sampling A/D Converter with Shutdown; CategoryAnalog mixed-signal IC converter; File Size319KB，20 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LTC1419CSW Overview

14-Bit, 800ksps Sampling A/D Converter with Shutdown

LTC1419CSW Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	incompatible
Maker	Linear ( ADI )
Parts packaging code	SOIC
package instruction	SOP, SOP28,.4
Contacts	28
Manufacturer packaging code	SW
Reach Compliance Code	not_compliant
ECCN code	3A991.C.3
Maximum analog input voltage	2.5 V
Minimum analog input voltage	-2.5 V
Maximum conversion time	1.15 µs
Converter type	ADC, SUCCESSIVE APPROXIMATION
JESD-30 code	R-PDSO-G28
JESD-609 code	e0
length	17.89 mm
Maximum linear error (EL)	0.0122%
Humidity sensitivity level	1
Nominal negative supply voltage	-5 V
Number of analog input channels	1
Number of digits	14
Number of functions	1
Number of terminals	28
Maximum operating temperature	70 °C
Minimum operating temperature
Output bit code	2\'S COMPLEMENT BINARY
Output format	PARALLEL, WORD
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP28,.4
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	235
power supply	+-5 V
Certification status	Not Qualified
Sampling rate	0.8 MHz
Sample and hold/Track and hold	SAMPLE
Maximum seat height	2.642 mm
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	20
width	7.493 mm
Base Number Matches	1

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LTC1419

14-Bit, 800ksps Sampling

A/D Converter with Shutdown

FEATURES

DESCRIPTIO

Sample Rate: 800ksps

Power Dissipation: 150mW

81.5dB S/(N + D) and 93dB THD

No Missing Codes

No Pipeline Delay

Nap and Sleep Shutdown Modes

Operates with 2.5V Internal 15ppm/°C

Reference or External Reference

True Differential Inputs Reject Common Mode Noise

20MHz Full-Power Bandwidth Sampling

Bipolar Input Range:

±2.5V

28-Pin SSOP and SO Packages

The LTC

1419 is a 1µs, 800ksps, 14-bit sampling

A/D converter that draws only 150mW from

±5V

supplies.

This easy-to-use device includes a high dynamic range

sample-and-hold and a precision reference. Two digitally

selectable power shutdown modes provide flexibility for

low power systems.

The LTC1419 has a full-scale input range of

±2.5V.

Out-

standing AC performance includes 81.5dB S/(N + D) and

93dB THD with a 100kHz input; 80dB S/(N + D) and 86dB

THD at the Nyquist input frequency of 400kHz.

The unique differential input sample-and-hold can acquire

single-ended or differential input signals up to its 20MHz

bandwidth. The 60dB common mode rejection allows

users to eliminate ground loops and common mode noise

by measuring signals differentially from the source.

The ADC has a

µP

compatible, 14-bit parallel output port.

There is no pipeline delay in the conversion results. A

separate convert start input and data ready signal (BUSY)

ease connections to FIFOs, DSPs and microprocessors.

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

APPLICATI

Telecommunications

Digital Signal Processing

Multiplexed Data Acquisition Systems

High Speed Data Acquisition

Spectrum Analysis

Imaging Systems

TYPICAL APPLICATI

800kHz, 14-Bit Sampling A/D Converter

LTC1419

DIFFERENTIAL

ANALOG INPUT 2 +A

(–2.5V TO 2.5V)

–A

REF

REFCOMP

BUSY

10µF

AGND

D13(MSB) CONVST

D12

D11

SHDN

D10

14-BIT

PARALLEL

BUS

DGND

µP

CONTROL

LINES

10µF

–5V

10µF

Effective Bits and Signal-to-(Noise + Distortion)

vs Input Frequency

EFFECTIVE BITS

SAMPLE

= 800kHz

10k

100k

INPUT FREQUENCY (Hz)

1M 2M

1419 TA02

REF

OUTPUT

2.50V

1µF

1419 TA01

S/(N + D) (dB)

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