LTC1406 查看數據表（PDF） - Linear Technology

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LTC1406

Low Power, 8-Bit, 20Msps, Sampling A/D Converter

Linear Technology 

LTC1406

DY A IC ACCURACY

The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. (Note 5)

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX UNITS

S/(N + D) Signal-to-Noise Plus Distortion Ratio

1MHz Input Signal

10MHz Input Signal

48.5

dB

47.5

dB

THD

Total Harmonic Distortion

1MHz Input Signal, First 5 Harmonics

10MHz Input Signal, First 5 Harmonics

– 62

dB

– 59

dB

SFDR Spurious Free Dynamic Range

1MHz Input Signal

10MHz Input Signal

63

dB

60

dB

IMD

Intermodulation Distortion

fIN1 = 3.500977MHz, fIN2 = 3.598633MHz

60

dB

DIGITAL I PUTS AND OUTPUTS (Note 5)

The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX

VIH

High Level Input Voltage

VIL

Low Level Input Voltage

IIN

Digital Input Current

CIN

Digital Input Capacitance

VOH

High Level Output Voltage

VOL

Low Level Output Voltage

ISOURCE Output Source Current

ISINK

Output Sink Current

VDD = 5.25V

VDD = 4.75V

VIN = 0V to VDD

VDD = 4.75V, IO = – 10µA

VDD = 4.75V, IO = – 200µA

VDD = 4.75V, IO = 160µA

VDD = 4.75V, IO = 1.6mA

VOUT = 0V

VOUT = VDD

q 2.4

q

0.8

q

±5

5

4.5

q 4.0

0.05

q

0.10

0.4

– 20

30

UNITS

V

V

µA

pF

V

V

V

V

mA

mA

POWER REQUIRE E TS (Note 5)

The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX

AVDD

DVDD

OVDD

VBIAS

VREF

OGND

Analog Positive Supply Voltage

Digital Positive Supply Voltage

Output Positive Supply Voltage

Internal Bias Voltage

Reference Voltage

Output Ground

(Note 10)

(Note 10)

(Note 10)

When Externally Driven (Note 10)

(Note 10)

(Note 10)

4.75

5.25

4.75

5.25

2.7

5.25

1.9 2.2 2.5

2 2.5 3

0

2

IDD

Positive Supply Current

AVDD = DVDD = OVDD = 5V, fSMPL = 20MHz (Note 13) q

PD

Power Dissipation

q

Power Down Positive Supply Current SHDN = 0V, CLK = VDD or 0

Power Down Power Dissipation

SHDN = 0V, CLK = VDD or 0

30 45

150 225

1

10

5

50

UNITS

V

V

V

V

V

V

mA

mW

µA

µW

3

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