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AD9942 データシート(Datasheet) 5 Page - Analog Devices

部品番号. AD9942
部品情報  Dual-Channel, 14-Bit CCD Signal Processor with Precision Timing™ Core
ダウンロード  36 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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AD9942
Rev. A | Page 5 of 36
ANALOG SPECIFICATIONS
TMIN to TMAX, AVDD_X = DVDD_X = 3.0 V, fCLI = 40 MHz, typical timing specifications, unless otherwise noted. X = A, B.
Table 3.
Parameter
Min
Typ
Max
Unit
Notes
CDS
Gain
0
dB
Allowable CCD Reset Transient1
500
mV
Max Input Range Before Saturation
1.0
V p-p
Max CCD Black Pixel Amplitude
±100
mV
Measured at 12 dB VGA gain
(Typ = 70 mV at 15 dB and 50 mV at 18 dB)
VARIABLE GAIN AMPLIFIER (VGA_X)
Max Input Range
1.0
V p-p
Max Output Range
2.0
V p-p
Gain Control Resolution
512
Steps
Gain Monotonicity
Guaranteed
Gain Range
Min Gain (Code 0)
0
dB
Max Gain (Code 511)
18
dB
CLPOB
Clamp Level Resolution
256
Steps
4 LSB/step
Clamp Level
Measured at ADC output
Min Clamp Level
0
LSB
Max Clamp Level
1023
LSB
CHN_A AND CHN_B ADC
Differential Nonlinearity (DNL)
−1.0
± 0.5
+1.0
LSB
No Missing Codes
Guaranteed
Full-Scale Input Voltage
2.0
V
VOLTAGE REFERENCE
Reference Top Voltage (REFT_X)
2.0
V
Reference Bottom Voltage (REFB_X)
1.0
V
SYSTEM PERFORMANCE
Specifications include entire signal chain
VGA Gain Accuracy
Min Gain (Code 0)
−0.5
0
+0.5
dB
Max Gain (Code 511)
17.5
18
18.5
dB
Peak Nonlinearity, 500 mV Input Signal
0.15
%
12 dB gain applied
Total Output Noise
3
LSB rms
AC grounded input, 6 dB gain applied
Power Supply Rejection (PSR)
50
dB
Measured with step change on supply
1 Input signal characteristics defined as follows:
100mV MAX
OPTICAL BLACK PIXEL
500mV TYP
RESET TRANSIENT
1V MAX
INPUT SIGNAL RANGE




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