AD9943 Analog Devices, AD9943 Datasheet - Page 4

• Manufacturer Part Number: AD9943
• Description: Complete 10-Bit and 12-Bit/ 25 MHz CCD Signal Processors
• Manufacturer: Analog Devices

AD9943/AD9944
AD9943 SYSTEM SPECIFICATIONS
T
Table 3.
Parameter
CDS
VARIABLE GAIN AMPLIFIER (VGA)
BLACK LEVEL CLAMP
A/D CONVERTER
VOLTAGE REFERENCE
SYSTEM PERFORMANCE
1
RESET TRANSIENT
Input signal characteristics defined as follows:
MIN
Maximum Input Range before Saturation
Allowable CCD Reset Transient
Maximum CCD Black Pixel Amplitude
Gain Control Resolution
Gain Monotonicity
Gain Range
Clamp Level Resolution
Clamp Level
Resolution
Differential Nonlinearity (DNL)
No Missing Codes
Data Output Coding
Full-Scale Input Voltage
Reference Top Voltage (REFT)
Reference Bottom Voltage (REFB)
Gain Range
Gain Accuracy
Peak Nonlinearity 500 mV Input Signal
Total Output Noise
Power Supply Rejection (PSR)
500mV TYP
Minimum Gain
Maximum Gain
Minimum Clamp Level
Maximum Clamp Level
Low Gain (VGA Code = 0)
Maximum Gain (VGA Code = 1023)
to T
MAX
OPTICAL BLACK PIXEL
, AVDD = DVDD = DRVDD = 3 V, f
100mV TYP
INPUT SIGNAL RANGE
1
1V TYP
1
1
Min
40
10
40
SAMP
= 25 MHz, unless otherwise noted.
Typ
1.0
500
100
1024
Guaranteed
5.3
41.5
256
0
63.75
±0.3
Guaranteed
Straight binary
2.0
2.0
1.0
5.3
41.5
±1
0.1
0.3
50
Rev. B | Page 4 of 20
Max
V p-p
mV
mV
Steps
dB
dB
Steps
LSB
LSB
Bits
LSB
V
V
dB
dB
dB
%
LSB rms
dB
Unit
V
Conditions
See input waveform in footnote.
See Figure 13 for VGA gain curve.
See Variable Gain Amplifier section for VGA
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.
gain equation.