LTC2268-12 datasheet(6/32 Pages) LINER

Part #	LTC2268-12

Description	16-Bit, 20Msps Low Power ADC

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC2159

6

2159f

DigiTal inpuTs anD ouTpuTs The

l

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 5)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SDO OUTPUT (Serial Programming Mode. Open Drain Output. Requires 2kΩ Pull-Up Resistor if SDO is Used)

ROL

Logic Low Output Resistance to GND

VDD = 1.8V, SDO = 0V

200

Ω

IOH

Logic High Output Leakage Current

SDO = 0V to 3.6V

l

–10

10

µA

COUT

Output Capacitance

(Note 8)

3

pF

DIGITAL DATA OUTPUTS (CMOS MODES: FULL DATA RATE AND DOUBLE DATA RATE)

OVDD = 1.8V

VOH

High Level Output Voltage

IO = –500µA

l

1.750

1.790

V

VOL

Low Level Output Voltage

IO = 500µA

l

0.010

0.050

V

OVDD = 1.5V

VOH

High Level Output Voltage

IO = –500µA

1.488

V

VOL

Low Level Output Voltage

IO = 500µA

0.010

V

OVDD = 1.2V

VOH

High Level Output Voltage

IO = –500µA

1.185

V

VOL

Low Level Output Voltage

IO = 500µA

0.010

V

DIGITAL DATA OUTPUTS (LVDS MODE)

VOD

Differential Output Voltage

100Ω Differential Load, 3.5mA Mode

100Ω Differential Load, 1.75mA Mode

l

247

350

175

454

mV

VOS

Common Mode Output Voltage

100Ω Differential Load, 3.5mA Mode

100Ω Differential Load, 1.75mA Mode

l

1.125

1.250

1.375

V

RTERM

On-Chip Termination Resistance

Termination Enabled, OVDD = 1.8V

100

Ω

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

CMOS Output Modes: Full Data Rate and Double Data Rate

VDD

Analog Supply Voltage

(Note 10)

l

1.7

1.8

1.9

V

OVDD

Output Supply Voltage

(Note 10)

l

1.1

1.8

1.9

V

IVDD

Analog Supply Current

DC Input

Sine Wave Input

l

24

24.4

28.5

mA

IOVDD

Digital Supply Current

Sine Wave Input, OVDD =1.2V

0.8

mA

PDISS

Power Dissipation

DC Input

Sine Wave Input, OVDD =1.2V

l

43

45

51.5

mW

LVDS Output Mode

VDD

Analog Supply Voltage

(Note 10)

l

1.7

1.8

1.9

V

OVDD

Output Supply Voltage

(Note 10)

l

1.7

1.8

1.9

V

IVDD

Analog Supply Current

Sine Wave Input, 1.75mA Mode

Sine Wave Input, 3.5mA Mode

l

25.8

26.7

31

mA

IOVDD

Digital Supply Current

(OVDD = 1.8V)

Sine Wave Input, 1.75mA Mode

Sine Wave Input, 3.5mA Mode

l

21.1

40.9

46

mA

PDISS

Power Dissipation

Sine Wave Input, 1.75mA Mode

Sine Wave Input, 3.5mA Mode

l

84

122

139

mW

power requireMenTs The l denotes the specifications which apply over the full operating temperature

range, otherwise specifications are at TA = 25°C. (Note 9)

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