AD9821 Analog Devices, AD9821 Datasheet - Page 3

• Manufacturer Part Number: AD9821
• Description: Complete 12-Bit 40 MSPS Imaging Signal Processor
• Manufacturer: Analog Devices

IMAGER-MODE SPECIFICATIONS
Parameter
P
MAXIMUM CLOCK RATE
ANALOG INPUTS (VIN+, VIN–)
VARIABLE GAIN AMPLIFIER (VGA)
BLACK LEVEL CLAMP
SYSTEM PERFORMANCE
POWER-UP RECOVERY TIME
*Input Signal Characteristics defined as follows:
Specifications subject to change without notice.
REV. 0
+1.8V
VIN+
VIN–
GND
OWER CONSUMPTION
Input Common-Mode Range*
Max Input Amplitude*
Max Optical Black Pixel Amplitude*
Gain Control Resolution
Gain Monotonicity
Gain Range
Clamp Level Resolution
Clamp Level
Gain Accuracy
Peak Nonlinearity, 500 mV Input
Total Output Noise
Power Supply Rejection (PSR)
Reference Standby Mode
Total Power-Down Mode
Power-Off Condition
Min Gain (VGA Gain Code 00)
Max Gain (VGA Gain Code 1023)
Min Clamp Level
Max Clamp Level
Min Gain
Max Gain
INPUT SIGNAL RANGE
1V p-p MAX
OB PIXEL
30mV MAX
INPUT
CM RANGE
Min
40
0
1.0
–1
34.5
(T
MIN
to T
Typ
150
± 30
1024
Guaranteed
0
36
256
0
255
0
35.5
0.3
0.5
40
1
3
10
MAX
, AVDD = DVDD = 3.0 V, f
Max
1.8
+1
36.5
–3–
Unit
mW
MHz
V
V p-p
mV
Steps
dB
dB
Steps
LSB
LSB
dB
dB
%
LSB rms
dB
ms
ms
ms
DATACLK
Linear operating range for VIN+, VIN–
Defined as VIN+ minus VIN–
12 dB Gain Applied
AC Grounded Input, 6 dB Gain Applied
Measured with Step Change on Supply
Notes
See TPC 1 for Power vs. Sample Rate
For stable Clamp at max VGA gain
See Figure 11 for VGA Gain Curve
Measured at ADC Output
Specifications Include Entire Signal Chain
Normal Clock Signals Applied
= 40 MHz, unless otherwise noted.)
AD9821