AD9740-EB Analog Devices, AD9740-EB Datasheet - Page 5

• Manufacturer Part Number: AD9740-EB
• Description: 10-Bit/ 165 MSPS TxDAC D/A Converter
• Manufacturer: Analog Devices

Pin No.
1
2–9
10
11–14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
REV. 0
Mnemonic
DB9
DB8–DB1
DB0
NC
SLEEP
REFLO
REFIO
FS ADJ
NC
ACOM
IOUTB
IOUTA
RESERVED
AVDD
MODE
DCOM
DVDD
CLOCK
Data Bits 8–1
No Internal Connection
Power-Down Control Input. Active high. Contains active pull-down circuit; it may be left
No Internal Connection
Complementary DAC Current Output. Full-scale current when all data bits are 0s.
DAC Current Output. Full-scale current when all data bits are 1s.
Reserved. Do Not Connect to Common or Supply.
Analog Supply Voltage (3.3 V)
Digital Supply Voltage (3.3 V)
Clock Input. Data latched on positive edge of clock.
Description
Most Significant Data Bit (MSB)
Least Significant Data Bit (LSB)
unterminated if not used.
Reference Ground when internal 1.2 V reference used. Connect to AVDD to disable internal reference.
Reference Input/Output. Serves as reference input when internal reference disabled (i.e., tie REFLO to AVDD).
Serves as 1.2 V reference output when internal reference activated (i.e., tie REFLO to AGND). Requires
0.1 µF capacitor to AGND when internal reference activated.
Full-Scale Current Output Adjust
Analog Common
Selects Input Data Format. Connect to DGND for straight binary, DVDD for two’s complement.
Digital Common
PIN FUNCTION DESCRIPTIONS
(MSB) DB9
(LSB) DB0
PIN CONFIGURATION
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
NC
NC
NC
NC
10
11
12
13
14
1
2
3
4
5
6
7
8
9
NC = NO CONNECT
(Not to Scale)
TOP VIEW
AD9740
–5–
28
27
26
25
24
23
22
20
19
18
17
16
15
21
CLOCK
DVDD
DCOM
MODE
AVDD
RESERVED
IOUTA
IOUTB
ACOM
NC
FS ADJ
REFIO
REFLO
SLEEP
AD9740