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AD9042ST/PCB Scheda tecnica(PDF) 7 Page - Analog Devices

Il numero della parte AD9042ST/PCB
Spiegazioni elettronici  12-Bit, 41 MSPS Monolithic A/D Converter
PDF  24 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD9042ST/PCB Scheda tecnica(HTML) 7 Page - Analog Devices

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N
DIGITAL
OUTPUTS
(D11–D0)
N – 1
N – 2
tA = –250 PS TYP
N + 1
tOD = 9ns TYP
ANALOG
INPUT
(AIN)
ENCODE
INPUTS
(ENCODE)
N
Figure 1. Timing Diagram
REV. A
–7–
REV. A
–7–
Equivalent Circuits–AD9042
VOFFSET
200
Ω
6pF
250
Ω
250
Ω
AVCC
AIN
250µA
+3.5V
AVCC
250µA
AVCC
+1.5V
Figure 2. Analog Input Stage
AVCC
AVCC
TIMING
CIRCUITS
R2
8k
Ω
R2
8k
Ω
R1
17k
Ω
R1
17k
Ω
ENCODE
ENCODE
AVCC
Figure 3. Encode Inputs
AVCC
AVCC
C1
(PIN 10
*)
CURRENT
MIRROR
VREF
AVCC
*AD9042AST ONLY
INTERNAL NODE ON AD9042AD
Figure 4. Compensation Pin, C1
VREF
DVCC
DVCC
CURRENT
MIRROR
CURRENT
MIRROR
D0–D11
Figure 5. Digital Output Stage
VREF
AVCC
0.5mA
2.4V
AVCC
Figure 6. 2.4 V Reference
4
5
8
28
17
+5V
+5V
2,12,14
10k
Ω
200kHz
SINEWAVE
TTL CLOCK OSC.
0.1µF
10
9
49.9
Ω
NOTE: ALL +5V SUPPLY PINS & VREF PIN BYPASSED TO GND
WITH A 0.1µF CAPACITOR. PINS 15,16 ARE NOT CONNECTED.
NC
1,3,6,7,11,13
ENCODE
ENCODE
AIN
VOFFSET
VREF
D11
D0
Figure 7. AD9042AD Burn-In Diagram



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