AD9927 Analog Devices, AD9927 Datasheet - Page 5

• Manufacturer Part Number: AD9927
• Description: 14-Bit CCD Signal Processor
• Manufacturer: Analog Devices

RESET TRANSIENT
ANALOG SPECIFICATIONS
AVDD = 1.8 V, f
Table 3.
Parameter
CDS
VARIABLE GAIN AMPLIFIER (VGA)
BLACK LEVEL CLAMP
ADC
VOLTAGE REFERENCE
SYSTEM PERFORMANCE
1
Input signal characteristics defined as follows:
Allowable CCD Reset Transient
CDS Gain Accuracy
Maximum Input Range Before Saturation
Allowable OB Pixel Amplitude
Gain Control Resolution
Gain Monotonicity
Gain Range
Clamp Level Resolution
Clamp Level
Resolution
Differential Nonlinearity (DNL)
No Missing Codes
Integral Nonlinearity (INL)
Full-Scale Input Voltage
Reference Top Voltage (REFT)
Reference Bottom Voltage (REFB)
Gain Accuracy
Peak Nonlinearity, 1.0 V Input Signal
Total Output Noise
Power Supply Rejection (PSR)
500mV TYP
1
−3.0 dB CDS Gain
0 dB CDS Gain
+3 dB CDS Gain
+6 dB CDS Gain
−3 dB CDS Gain
0 dB CDS Gain
+3 dB CDS Gain
+6 dB CDS Gain
0 dB CDS Gain (Default)
+6 dB CDS Gain
Low Gain (VGA Code 15, Default)
Maximum Gain (VGA Code 1023)
Minimum Clamp Level (Code 0)
Maximum Clamp Level (Code 1023)
Low Gain (VGA Code 15)
Maximum Gain (VGA Code 1023)
OPTICAL BLACK PIXEL
200mV MAX
CLI
= 40 MHz, typical timing specifications, T
INPUT SIGNAL RANGE
(0dB CDS GAIN)
1V MAX
1
Min
−3.3
−0.5
2.4
5.0
−100
−50
14
−1.0
5.8
41.9
Guaranteed
Guaranteed
Rev. 0 | Page 5 of 100
Typ
0.5
−2.8
0
2.9
5.5
1.4
1.0
0.7
0.5
1024
6.3
42.4
1024
0
255
±0.5
4
2.0
1.4
0.4
6.3
42.4
0.1
0.5
50
MIN
to T
MAX
Max
1.2
−2.3
+0.5
3.4
6.0
+200
+100
16
6.8
42.9
0.3
, unless otherwise noted.
Unit
V
dB
dB
dB
dB
V p-p
V p-p
V p-p
V p-p
mV
mV
Steps
dB
dB
Steps
LSB
LSB
Bits
LSB
LSB
V
V
V
dB
dB
%
LSB rms
dB
Notes
VGA gain = 6.3 dB (Code 15, default value)
VGA gain = 6.3 dB (Code 15, default value)
Measured at ADC output
Includes entire signal chain
0 dB CDS gain
Gain = (0.0358 × Code) + 5.76 dB
6 dB VGA gain, 0 dB CDS gain applied
AC-grounded input, 6 dB VGA gain applied
Measured with step change on supply
AD9927