AD9944 データシートの表示（PDF） - Analog Devices

部品番号

コンポーネント説明

メーカー

AD9944

Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors

Analog Devices 

AD9943/AD9944

AD9943 SYSTEM SPECIFICATIONS

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

Table 3.

Parameter

CDS

Maximum Input Range before Saturation1

Allowable CCD Reset Transient1

Maximum CCD Black Pixel Amplitude1

VARIABLE GAIN AMPLIFIER (VGA)

Gain Control Resolution

Gain Monotonicity

Gain Range

Minimum Gain

Maximum Gain

Min Typ

1.0

500

100

1024

Guaranteed

5.3

40 41.5

Max Unit

V p-p

mV

mV

Steps

dB

dB

BLACK LEVEL CLAMP

Clamp Level Resolution

Clamp Level

Minimum Clamp Level

Maximum Clamp Level

A/D CONVERTER

Resolution

Differential Nonlinearity (DNL)

No Missing Codes

Data Output Coding

Full-Scale Input Voltage

VOLTAGE REFERENCE

Reference Top Voltage (REFT)

Reference Bottom Voltage (REFB)

SYSTEM PERFORMANCE

Gain Range

Low Gain (VGA Code = 0)

Maximum Gain (VGA Code = 1023)

Gain Accuracy

Peak Nonlinearity 500 mV Input Signal

Total Output Noise

Power Supply Rejection (PSR)

256

0

63.75

10

±0.3

Guaranteed

Straight binary

2.0

2.0

1.0

5.3

40 41.5

±1

0.1

0.3

50

Steps

LSB

LSB

Bits

LSB

V

V

V

dB

dB

dB

%

LSB rms

dB

Conditions

See input waveform in footnote.

See Figure 13 for VGA gain curve.

See Variable Gain Amplifier section for VGA

gain equation.

Measured at ADC output.

Specifications include entire signal chain.

12 dB gain applied.

AC grounded input, 6 dB gain applied.

Measured with step change on supply.

1 Input signal characteristics defined as follows:

500mV TYP

RESET TRANSIENT

100mV TYP

OPTICAL BLACK PIXEL

1V TYP

INPUT SIGNAL RANGE

Rev. B | Page 4 of 20

Share Link: