LTC2435CGN#PBF datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Analog mixed-signal IC> converter> LTC2435CGN#PBF

LTC2435CGN#PBF: DescriptionIC ADC DIFF I/REF 20BIT 16-SSOP; CategoryAnalog mixed-signal IC converter; File Size635KB，42 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LTC2435CGN#PBF Overview

IC ADC DIFF I/REF 20BIT 16-SSOP

LTC2435CGN#PBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Maker	Linear ( ADI )
Parts packaging code	SSOP
package instruction	SSOP, SSOP16,.25
Contacts	16
Manufacturer packaging code	GN
Reach Compliance Code	compliant
ECCN code	EAR99
Is Samacsys	N
Maximum analog input voltage	2.75 V
Minimum analog input voltage	-2.75 V
Maximum conversion time	81900 µs
Converter type	ADC, DELTA-SIGMA
JESD-30 code	R-PDSO-G16
JESD-609 code	e3
length	4.8895 mm
Maximum linear error (EL)	0.002%
Humidity sensitivity level	1
Number of analog input channels	1
Number of digits	20
Number of functions	1
Number of terminals	16
Maximum operating temperature	70 °C
Minimum operating temperature
Output bit code	BINARY
Output format	SERIAL
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Encapsulate equivalent code	SSOP16,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	1.75 mm
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.635 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3.899 mm
Base Number Matches	1

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FeaTures

LTC2435/LTC2435-1

20-Bit No Latency

∆∑™

ADCs with Differential Input and

Differential Reference

DescripTion

The

LTC

2435/LTC2435-1

are 2.7V to 5.5V micropower

20-bit differential ∆∑ analog to digital converters with

integrated oscillator, 3ppm INL and 0.8ppm RMS noise.

They use delta-sigma technology and provide single

cycle settling time for multiplexed applications. Through

a single pin, the LTC2435 can be configured for better

than 110dB input differential mode rejection at 50Hz or

60Hz ± 2%, or it can be driven by an external oscillator

for a user defined rejection frequency. The LTC2435-1

can be configured for better than 87dB input differential

mode rejection over the range of 49Hz to 61.2Hz (50Hz

and 60Hz ±2% simultaneously). The internal oscillator

requires no external frequency setting components.

The converters accept any external differential reference

voltage from 0.1V to V

for flexible ratiometric and re-

mote sensing measurement configurations. The full-scale

differential input range is from –0.5V

REF

to 0.5V

REF

. The

reference common mode voltage, V

REFCM

, and the input

common mode voltage, V

INCM

, may be independently set

anywhere within the GND to V

range of the LTC2435/

LTC2435-1. The DC common mode input rejection is

better than 120dB.

The LTC2435/LTC2435-1 communicate through a flexible

3-wire digital interface which is compatible with SPI and

MICROWIRE™ protocols.

LT, LTC and LTM are registered trademarks and C-Load and No Latency ∆

∑

are trademarks

of Linear Technology Corporation. Protected by U.S. Patents including 6140950, 6169506.

2× Speed Up Version of the LTC2430: 15Hz Output

Rate, 60Hz Notch—LTC2435; 13.75Hz Output Rate,

Simultaneous 50Hz/60Hz Notch—LTC2435-1

Differential Input and Differential Reference with

GND to V

Common Mode Range

3ppm INL, No Missing Codes

10ppm Gain Error

0.8ppm Noise

Single Conversion Settling Time for Multiplexed

Applications

Internal Oscillator—No External Components Required

Single Supply 2.7V to 5.5V Operation

Low Supply Current (200µA,4µA in Auto Sleep)

20-Bit ADC in Narrow SSOP-16 Package

(SO-8 Footprint)

Direct Sensor Digitizer

Weight Scales

Direct Temperature Measurement

Gas Analyzers

Strain Gage Transducers

Instrumentation

Data Acquisition

Industrial Process Control

6-Digit DVMs

applicaTions

Typical applicaTions

2.7V TO 5.5V

1μF

Integral Nonlinearity vs Input

INL (ppm OF V

REF

)

–2

–4

–6

–8

2435 TA01

LTC2435/

LTC2435-1

REFERENCE

VOLTAGE

0.1V TO V

ANALOG INPUT RANGE

–0.5V

REF

TO 0.5V

REF

–

GND

SDO

SCK

= INTERNAL OSC/50Hz REJECTION (LTC2435)

= EXTERNAL CLOCK SOURCE

= INTERNAL OSC/60Hz REJECTION (LTC2435)

= INTERNAL 50Hz/60Hz REJECTION (LTC2435-1)

= 25°C

= 85°C

= –45°C

= GND

= 5V

REF

= 5V

INCM

= V

INCM

= 2.5V

–1.5

–0.5

0.5

1.5

INPUT VOLTAGE (V)

2.5

2435 TA01b

3-WIRE

SPI INTERFACE

1, 7, 8, 9, 10, 15, 16

–10

–2.5

24351fc

For more information

www.linear.com/LTC2435

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