AD9050 Analog Devices, AD9050 Datasheet - Page 4

• Manufacturer Part Number: AD9050
• Description: 10-Bit/ 40 MSPS/60 MSPS A/D Converter
• Manufacturer: Analog Devices

AD9050
Analog Input
3.813
3.300
2.787
Pin No
1, 7, 12, 21, 23
2, 8, 11
3
4
5
6
9
10
13
14
15
16–19
20, 22
24–27
28
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD9050 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
Name
GND
V
VREF
VREF
COMP
REF
AINB
AIN
ENCODE
OR
D9 (MSB)
D8–D5
V
D4–D1
D0 (LSB)
Table I. AD9050 Digital Coding (Single Ended Input AIN, AINB Bypassed to GND)
D
DD
BP
OUT
IN
Voltage Level
Positive Full Scale + 1 LSB
Midscale
Negative Full Scale – 1 LSB
Function
Analog +5 V
Internal bandgap voltage reference (nominally +2.5 V).
Input to reference amplifier. Voltage reference for ADC is connected here.
Internal compensation pin, 0.1 F bypass connected here to V
External connection for (0.1 F) reference bypass capacitor.
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.
Ground.
PIN FUNCTION DESCRIPTIONS
VREF
ENCODE
VREF
PIN CONFIGURATION
REF
COMP
AINB
GND
GND
GND
OUT
AIN
OR
V
V
V
BP
IN
5% power supply.
D
D
D
10
11
12
13
14
1
2
3
4
5
6
7
8
9
(Not to Scale)
TOP VIEW
AD9050
–4–
27
26
25
24
23
22
20
19
18
17
16
15
28
21
V
D5
D0 (LSB)
D1
D2
D3
D4
GND
V
GND
D6
D7
D8
D9 (MSB)
DD
DD
OR
(Out of Range)
0
1
1
WARNING!
D
(+5 V).
Digital Output
MSB . . . LSB
1111111111
0111111111
0000000000
ESD SENSITIVE DEVICE
REV. B