LTC2439-1 datasheet(4/28 Pages) LINER

Part #	LTC2439-1

Description	8-/16-Channel 16-Bit No Latency Delta-Sigma ADC

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC2439-1

4

24391f

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIH

High Level Input Voltage

2.7V

≤ VCC ≤ 5.5V

q

2.5

V

CS, FO, SDI

2.7V

≤ VCC ≤ 3.3V

2.0

V

VIL

Low Level Input Voltage

4.5V

≤ VCC ≤ 5.5V

q

0.8

V

CS, FO, SDI

2.7V

≤ VCC ≤ 5.5V

0.6

V

VIH

High Level Input Voltage

2.7V

≤ VCC ≤ 5.5V (Note 8)

q

2.5

V

SCK

2.7V

≤ VCC ≤ 3.3V (Note 8)

2.0

V

VIL

Low Level Input Voltage

4.5V

≤ VCC ≤ 5.5V (Note 8)

q

0.8

V

SCK

2.7V

≤ VCC ≤ 5.5V (Note 8)

0.6

V

IIN

Digital Input Current

0V

≤ VIN ≤ VCC

q

–10

10

µA

CS, FO, SDI

IIN

Digital Input Current

0V

≤ VIN ≤ VCC (Note 8)

q

–10

10

µA

SCK

CIN

Digital Input Capacitance

10

pF

CS, FO, SDI

CIN

Digital Input Capacitance

(Note 8)

10

pF

SCK

VOH

High Level Output Voltage

IO = – 800µA

q

VCC – 0.5

V

SDO

VOL

Low Level Output Voltage

IO = 1.6mA

q

0.4

V

SDO

VOH

High Level Output Voltage

IO = – 800µA (Note 9)

q

VCC – 0.5

V

SCK

VOL

Low Level Output Voltage

IO = 1.6mA (Note 9)

q

0.4

V

SCK

IOZ

Hi-Z Output Leakage

q

–10

10

µA

SDO

DIGITAL I PUTS A D DIGITAL OUTPUTS The q denotes specifications which apply over the full

operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VCC

Supply Voltage

q

2.7

5.5

V

ICC

Supply Current

Conversion Mode

CS = 0V (Note 11)

q

200

300

µA

Sleep Mode

CS = VCC (Note 11)

q

415

µA

Sleep Mode

CS = VCC, 2.7V ≤ VCC ≤ 3.3V (Note 11, 14)

2

µA

POWER REQUIRE E TS The q denotes specifications which apply over the full operating temperature range,

otherwise specifications are at TA = 25°C. (Note 3)

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