AD9848 データシートの表示（PDF） - Analog Devices

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AD9848

CCD Signal Processors with Integrated Timing Driver

Analog Devices 

AD9848/AD9849

AD9849–ANALOG SPECIFICATIONS (TMIN to TMAX, AVDD = DVDD = 3.0 V, fCLI = 30 MHz, unless otherwise noted.)

Parameter

Min Typ

Max Unit Notes

CDS

Gain

Allowable CCD Reset Transient1

Max Input Range Before Saturation1

Max CCD Black Pixel Amplitude1

0

500

1.0

150

dB

mV

V p-p

mV

See Input Waveform in Note 1

PIXEL GAIN AMPLIFIER (PxGA)

Max Input Range

Max Output Range

Gain Control Resolution

Gain Monotonicity

Gain Range

Min Gain (32)

Med Gain (0)

Max Gain (31)

1.0

1.6

64

Guaranteed

–2

4

10

V p-p

V p-p

Steps

dB

dB

Medium Gain (4 dB) Is Default Setting

dB

VARIABLE GAIN AMPLIFIER (VGA)

Max Input Range

1.6

Max Output Range

2.0

Gain Control Resolution

Gain Monotonicity

Gain Range

Low Gain (91)

Max Gain (1023)

1024

Guaranteed

2

36

V p-p

V p-p

Steps

dB

dB

BLACK LEVEL CLAMP

Clamp Level Resolution

Clamp Level

Min Clamp Level (0)

Max Clamp Level (255)

256

Steps

Measured at ADC Output

0

LSB

255

LSB

A/D CONVERTER

Resolution

Differential Nonlinearity (DNL)

No Missing Codes

Full-Scale Input Voltage

12

Bits

± 0.5

± 1.0 LSB

Guaranteed

2.0

V

VOLTAGE REFERENCE

Reference Top Voltage (VRT)

2.0

V

Reference Bottom Voltage (VRB)

1.0

V

SYSTEM PERFORMANCE

Gain Accuracy

Low Gain (91)

5

6

Max Gain (1023)

38 39.5

Peak Nonlinearity, 500 mV Input Signal

0.2

Total Output Noise

0.6

Power Supply Rejection (PSR)

40

Specifications Include Entire Signal Chain

Gain Includes 4 dB Default PxGA Gain

7

dB

41

dB

%

12 dB Gain Applied

LSB rms AC Grounded Input, 6 dB Gain Applied

dB

Measured with Step Change on Supply

NOTES

1Input signal characteristics defined as follows:

500mV TYP

RESET

TRANSIENT

150mV MAX

OPTICAL

BLACK PIXEL

1V MAX

INPUT

SIGNAL RANGE

Specifications subject to change without notice.

REV. 0

–5–

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