AD9058 Analog Devices, AD9058 Datasheet - Page 4

• Manufacturer Part Number: AD9058
• Description: Dual 8-Bit 50 MSPS A/D Converter
• Manufacturer: Analog Devices

AD9058
ADC-A
3
4
5
6
7
8
9
10
11
12–17
18
19
20
21
22
COMMON PINS
1
2
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 AD9058 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.
Pin Number
J-Lead
D
ENCODE
7
(MSB)
–V
+V
ADC-B
43
42
41
40
39
38
37
36
35
34–29
28
27
26
25
24
+V
–V
REF
D
D
D
D
D
D
S
S
S
6
5
4
3
2
1
17
7
18
6
DIGITAL BITS
NC = NO CONNECT
(Not to Scale)
AD9058
TOP VIEW
Name
+V
GROUND
+V
AIN
–V
–V
+V
ENCODE
D7 (MSB)
D6–D1
D0 (LSB)
GROUND
–V
GROUND
+V
COMP
+V
S
REF
S
REF
S
S
S
INT
40
28
39
29
–V
+V
ENCODE
D
D
D
D
D
D
GROUND
D
–V
7
6
5
4
3
2
1
S
REF
S
(MSB)
Function
Top of internal voltage reference ladder.
Analog ground return.
Positive 5 V analog supply voltage.
Analog input voltage.
Negative 5 V supply voltage.
Bottom of internal voltage reference ladder.
Positive 5 V digital supply voltage.
TTL compatible convert command.
Most significant bit of TTL digital output.
TTL compatible digital output bits.
Least significant bit of TTL digital output.
Digital ground return.
Negative 5 V supply voltage.
Analog ground return.
Positive 5 V analog supply voltage.
Connection for external (0.1 µF)
compensation capacitor.
Internal +2 V reference; can drive
+V
PIN DESCRIPTIONS
ENCODE
REF
for both ADCs.
+5.0V
13kΩ
** INDICATES EACH PIN IS CONNECTED THROUGH 100
* INDICATES EACH PIN IS CONNECTED THROUGH 2 k
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
ENCODE
ENCODE
COMP
–V
+V
+V
–V
0.1 F
+V
+V
–V
+V
+V
–V
+V
+V
REF
NC
A
REF
REF
A
NC
REF
INT
IN
IN
S
S
S
S
S
S
NC = NO CONNECT
S
1
24
GROUND
D
+V
+V
COMP
25
48
0
WARNING!
–D
INT
REF
D
GROUND
–V
GROUND
GROUND
–V
GROUND
D
D
D
D
D
D
D
D
+V
+V
D
D
D
D
D
D
D
7
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7
S
S
S
S
*
ADC-A
14
15
16
17
19
20
22
23
25
26–31
32
21, 24, 33
34
35
36
COMMON PINS
12
13
(MSB)
(MSB)
(LSB)
(LSB)
AD9058
Ceramic DIP
Pin Number
ENCODE**
–V
ESD SENSITIVE DEVICE
A
REF
IN
+V
–V
**
S
S
ADC-B
11
10
9
8
6
5
3
2
48
47–42
41
1, 4, 40
39
38
37
+5V
–5.2V