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AD9051-2V View Datasheet(PDF) - Analog Devices

Part Name
Description
Manufacturer
AD9051-2V
ADI
Analog Devices ADI
AD9051-2V Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
Pin No.
1, 6, 7, 12, 21, 23
2, 8, 11
3
4
5
9
10
13
14
15
16–19
20, 22
24–27
28
Mnemonic
GND
VD
VREFOUT
VREFIN
BWSEL
AINB
AIN
ENCODE
OR
D9 (MSB)
D8–D5
VDD
D4–D1
D0 (LSB)
AD9051
PIN FUNCTION DESCRIPTIONS
Description
Ground
Analog 5 V Power Supply
Internal Bandgap Voltage Reference (Nominally 2.5 V)
Input to Reference Amplifier. Voltage reference for ADC is connected here.
Bandwidth Select. NC = 130 MHz nominal. +VD = 50 MHz nominal.
Complementary Analog Input Pin (Analog Input Bar)
Analog Input Pin
Encode Clock Input to ADC. Internal T/H is placed in hold mode (ADC is encoding)
on rising edge of encode signal.
Out of Range Signal. Logic “0” when analog input is in nominal range. Logic “1” when
analog input is out of nominal range.
Most Significant Bit of ADC Output
Digital Output Bits of ADC
Digital Output Power Supply (Only Used by Digital Outputs)
Digital Output Bits of ADC
Least Significant Bit of ADC Output
PIN CONFIGURATION
GND 1
28 D0 (LSB)
VD 2
VREFOUT 3
27 D1
26 D2
VREFIN 4
25 D3
BWSEL 5
24 D4
GND
GND
VD
6
23 GND
7 AD9051 22 VDD
TOP VIEW
8 (Not to Scale) 21 GND
AINB 9
20 VDD
AIN 10
19 D5
VD 11
GND 12
18 D6
17 D7
ENCODE 13
OR 14
16 D8
15 D9 (MSB)
N
N+1
N+2
N+3
N+4
N+5
AIN
tA
ENCODE
tEH tEL
DIGITAL
OUTPUTS
tPD
N–5
N–4
N–3
N–2
N–1
N
Figure 1. Timing Diagram
VD
VD
AINB (PIN 9)
AIN (PIN 10)
12k12kINPUT
BUFFER
12k12k
ENCODE
(PIN 13)
Analog Input
VDD (PINS 20, 22)
+3V TO +5V
Encode
VD
D0D9, OR
VREFOUT
(PIN 3)
Output Stage
VREF
Figure 2. Equivalent Circuits
REV. C
–5–
 

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