LTC1420IGN datasheet(2/20 Pages) LINER

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LTC1420

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Analog Input Range (Note 9)

VREF = 4.096V (SENSE = 0V), GAIN = 5V (1×)

±2.048

+AIN – (–AIN)VREF = 4.096V (SENSE = 0V), GAIN = 0V (2×)

±1.024

VREF = 2.048V (SENSE = VREF), GAIN = 5V (1×)

±1.024

VREF = 2.048V (SENSE = VREF), GAIN = 0V (2×)

±0.512

External VREF (SENSE = 5V), GAIN = 5V (1×)

±VREF/2

External VREF (SENSE = 5V), GAIN = 0V (2×)

±VREF/4

IIN

Analog Input Leakage Current

±20

µA

CIN

Analog Input Capacitance

Between Conversions

During Conversions

tACQ

Sample-and-Hold Acquisition Time

tAP

Sample-and-Hold Aperture Delay Time

– 250

tjitter

Sample-and-Hold Aperture Delay Time Jitter

0.6

CMRR

Analog Input Common Mode Rejection Ratio

–2.048V < (–AIN = +AIN) < 2.048V

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

0VDD = VDD (Notes 1, 2)

Supply Voltage (VDD) ................................................. 6V

Negative Supply Voltage (VSS) ................................ –6V

Total Supply Voltage (VDD to VSS) ........................... 12V

Analog Input Voltage

(Note 3) ............................. (VSS – 0.3V) to (VDD + 0.3V)

Digital Input Voltage

(Note 4) ............................. (VSS – 0.3V) to (VDD + 0.3V)

Digital Output Voltage ........ (VSS – 0.3V) to (VDD + 0.3V)

Power Dissipation .............................................. 500mW

Operating Temperature Range

LTC1420C ............................................... 0

°C to 70°C

LTC1420I ............................................ – 40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Resolution (No Missing Codes)

Bits

Integral Linearity Error

(Note 7)

±0.35

±1

LSB

Differential Linearity Error

±0.25

±1

LSB

Offset Error

(Note 8)

±5

LSB

Full-Scale Error

±10

LSB

Full-Scale Tempco

IOUT(REF) = 0

±15

ppm/

°C

ORDER PART

NUMBER

LTC1420CGN

LTC1420IGN

Consult factory for Military grade parts.

TJMAX = 110°C, θJA = 110°C/W

TOP VIEW

GN PACKAGE

28-LEAD PLASTIC SSOP

+AIN

–AIN

VCM

SENSE

VREF

GND

VDD

GND

D11 (MSB)

D10

GAIN

CLK

VSS

GND

VDD

OVDD

OGND

The q denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. With Internal 4.096V Reference. Specifications are guaranteed for both

dual supply and single supply operation. (Note 5)

The q denotes the specifications which apply over the full operating temperature range, otherwise

specifications are at TA = 25°C. Specifications are guaranteed for both dual supply and single supply operation. (Note 5)

CONVERTER CHARACTERISTICS

A ALOG I PUT

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