AD9845BJST View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD9845BJST Datasheet PDF : 24 Pages
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AD9845B
CCD MODE SPECIFICATIONS (TMIN to TMAX, AVDD = DVDD = 3.0 V, fDATACLK = fSHP = fSHD = 30 MHz, unless otherwise noted.)
Parameter
Min Typ Max
Unit
Notes
POWER CONSUMPTION
153
mW
See TPC 1 for Power Curves
MAXIMUM CLOCK RATE
30
MHz
CDS
Gain
Allowable CCD Reset Transient1
Max Input Range before Saturation1
Max CCD Black Pixel Amplitude1
0
500
1.0
200
dB
mV
V p-p
mV
PxGA Gain at 4 dB
PIXEL GAIN AMPLIFIER (PxGA)
Max Input Range
Max Output Range
Gain Control Resolution
Gain Monotonicity
Gain Range (Twos Complement Coding)
Min Gain (PxGA Gain Code 32)
Max Gain (PxGA Gain Code 31)
1.0
1.6
64
Guaranteed
–2.5
9.5
V p-p
V p-p
Steps
dB
dB
See Figure 28 for PxGA Gain Curve
VARIABLE GAIN AMPLIFIER (VGA)
Max Input Range
Max Output Range
Gain Control Resolution
Gain Monotonicity
Gain Range
Low Gain (VGA Gain Code 77)
Max Gain (VGA Gain Code 1023)
1.6
2.0
1024
Guaranteed
2
36
V p-p
V p-p
Steps
dB
dB
See Figure 29 for VGA Gain Curve
BLACK LEVEL CLAMP
Clamp Level Resolution
Clamp Level
Min Clamp Level
Max Clamp Level
256
Steps
Measured at ADC Output
0
LSB
255
LSB
SYSTEM PERFORMANCE
Gain Accuracy2
Low Gain (VGA Code 77)
Max Gain (VGA Code 1023)
Peak Nonlinearity, 500 mV Input Signal
Total Output Noise
Power Supply Rejection (PSR)
5.5 6
6.5
38.2 39.5 40.2
0.1
0.5
40
dB
dB
%
LSB rms
dB
Specifications Include Entire Signal Chain
Gain = (0.0353 ϫ Code) + 3.3
12 dB Gain Applied
AC Grounded Input, 6 dB Gain Applied
Measured with Step Change on Supply
POWER-UP RECOVERY TIME
Reference Standby Mode
Total Shutdown Mode
Power-Off Condition
Normal Clock Signals Applied
1
ms
3
ms
15
ms
NOTES
1Input signal characteristics defined as follows:
500mV TYP
RESET TRANSIENT
200mV MAX
OPTICAL BLACK PIXEL
1V MAX
INPUT SIGNAL RANGE
2PxGA gain fixed at Code 63 (3.3 dB).
Specifications subject to change without notice.
REV. B
–3–
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