AD9974BBCZ datasheet(6/52 Pages) AD

Il numero della parte	AD9974BBCZ

Spiegazioni elettronici	Dual-Channel, 14-Bit, CCD Signal Processor with Precision Timing Core

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Produttore elettronici	AD [Analog Devices]

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AD9974

Rev. A | Page 6 of 52

ANALOG SPECIFICATIONS

X = A = B, AVDD_X = 1.8 V, fCLI = 65 MHz, typical timing specifications, TMIN to TMAX, unless otherwise noted.

Table 5.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

CDS1

Allowable CCD Reset Transient

0.5

0.8

V

CDS Gain Accuracy

−3 dB CDS Gain

−3.3

−2.8

−2.3

0 dB CDS Gain (Default)

−0.7

−0.2

+0.3

3 dB CDS Gain

2.3

2.8

3.3

6 dB CDS Gain

4.9

5.4

5.9

Maximum Input Voltage

VGA gain = 5.6 dB (Code 15, default value)

−3 dB CDS Gain

1.4

V p-p

0 dB CDS Gain (Default)

1.0

V p-p

3 dB CDS Gain

0.7

V p-p

6 dB CDS Gain

0.5

V p-p

Allowable OB Pixel Amplitude

0 dB CDS Gain (Default)

−100

+200

mV

6 dB CDS Gain

−50

+100

mV

VARIABLE GAIN AMPLIFIER (VGA_X)

Gain Control Resolution

1024

Steps

Gain Monotonicity

Guaranteed

Low Gain Setting (VGA Code 15, Default)

6

dB

Maximum Gain Setting (VGA Code 1023)

42

dB

BLACK LEVEL CLAMP

Clamp Level Resolution

1024

Steps

Minimum Clamp Level (Code 0)

0

LSB

Measured at ADC output

Maximum Clamp Level (Code 1023)

1023

LSB

Measured at ADC output

ADC (CHN_A and CHN_B)

Resolution

14

Bits

Differential Nonlinearity (DNL)

−1.0

±0.5

+1.2

LSB

No Missing Codes

Guaranteed

Integral Nonlinearity (INL)

5

15

LSB

Full-Scale Input Voltage

2.0

V

VOLTAGE REFERENCE

Reference Top Voltage (REFT_X)

1.4

V

Reference Bottom Voltage (REFB_X)

0.4

V

SYSTEM PERFORMANCE

Specifications include entire signal chain

VGA Gain Accuracy

0 dB CDS gain (default)

Low Gain (Code 15)

5.1

5.6

6.1

dB

Gain = (0.0359 × code) + 5.1 dB

Maximum Gain (Code 1023)

41.3

41.8

42.3

dB

Peak Nonlinearity, 500 mV Input Signal

0.1

0.4

%

12 dB total gain applied

Total Output Noise

2

LSB rms

AC-grounded input, 6 dB gain applied

Power Supply Rejection (PSR)

48

dB

Measured with step change on supply

1 Input signal characteristics are defined as shown in

.

Figure 2

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