AD9944KCPZ datasheet(3/20 Pages) AD

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Data Sheet

AD9943/AD9944

SPECIFICATIONS

GENERAL SPECIFICATIONS

TMIN to TMAX, AVDD = DVDD = DRVDD = 3 V, fSAMP = 25 MHz, unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

TEMPERATURE RANGE

Operating

−20

+85

°C

Storage

−65

+150

°C

POWER SUPPLY VOLTAGE

Analog, Digital, Digital Driver

2.7

3.6

POWER CONSUMPTION

Normal Operation

Power-Down Mode

150

µW

MAXIMUM CLOCK RATE

MHz

DIGITAL SPECIFICATIONS

DRVDD = DVDD = 2.7 V, CL = 20 pF, unless otherwise noted.

Parameter

Symbol

Min

Typ

Max

Unit

LOGIC INPUTS

High Level Input Voltage

VIH

2.1

Low Level Input Voltage

VIL

0.6

High Level Input Current

IIH

µA

Low Level Input Current

IIL

µA

Input Capacitance

CIN

LOGIC OUTPUTS

High Level Output Voltage, IOH = 2 mA

VOH

2.2

Low Level Output Voltage, IOL = 2 mA

VOL

0.5

AD9943 SYSTEM SPECIFICATIONS

TMIN to TMAX, AVDD = DVDD = DRVDD = 3 V, fSAMP = 25 MHz, unless otherwise noted.

Table 2.

Parameter

Min

Typ

Max

Unit

Conditions

CDS

Maximum Input Range before Saturation1

1.0

V p-p

Allowable CCD Reset Transient1

500

See input waveform in footnote.

Maximum CCD Black Pixel Amplitude1

100

VARIABLE GAIN AMPLIFIER (VGA)

Gain Control Resolution

1024

Steps

Gain Monotonicity

Guaranteed

Gain Range

Minimum Gain

5.3

See Figure 13 for VGA gain curve.

Maximum Gain

41.5

See Variable Gain Amplifier section for VGA

gain equation.

BLACK LEVEL CLAMP

Clamp Level Resolution

256

Steps

Clamp Level

Measured at ADC output.

Minimum Clamp Level

LSB

Maximum Clamp Level

63.75

LSB

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