AD9744AR Analog Devices Inc, AD9744AR Datasheet - Page 7

• Manufacturer Part Number: AD9744AR
• Description: IC DAC 14BIT 210MSPS 28-SOIC
• Manufacturer: Analog Devices Inc
• Series: TxDAC®r

Specifications of AD9744AR

• Rohs Status: RoHS non-compliant
• Settling Time: 11ns
• Number Of Bits: 14
• Data Interface: Parallel
• Number Of Converters: 1
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 145mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Number Of Channels: 1
• Resolution: 14b
• Interface Type: Parallel
• Single Supply Voltage (typ): 3.3V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Analog and Digital
• Output Type: Current
• Integral Nonlinearity Error: ±5LSB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 3.6V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Package Type: SOIC W
• For Use With: AD9744ACP-PCBZ - BOARD EVAL FOR AD9744ACP
• Lead Free Status / Rohs Status: Not Compliant

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 5. Pin Function Descriptions
SOIC/TSSOP
Pin No.
1
2 to 13
14
15
16
17
18
19
20
21
22
23
24
25
N/A
26
27
28
N/A
N/A
N/A
N/A
(MSB) DB13
(LSB) DB0
Figure 3. 28-Lead SOIC and TSSOP
LFCSP
Pin No.
27
28 to 32,
1, 2, 4 to 8
9
25
N/A
23
24
N/A
19, 22
20
21
N/A
17, 18
16
15
10, 26
3
N/A
12
13
11
14
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
10
11
12
13
14
1
2
3
4
5
6
7
8
9
NC = NO CONNECT
(Not to Scale)
AD9744
TOP VIEW
Mnemonic
DB13
DB12 to
DB1
DB0
SLEEP
REFLO
REFIO
FS ADJ
NC
ACOM
IOUTB
IOUTA
RESERVED
AVDD
MODE
CMODE
DCOM
DVDD
CLOCK
CLK+
CLK−
CLKVDD
CLKCOM
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CLOCK
DVDD
DCOM
MODE
AVDD
RESERVED
IOUTA
IOUTB
ACOM
NC
FS ADJ
REFIO
REFLO
SLEEP
DAC Current Output. Full-scale current when all data bits are 1s.
Reserved. Do not connect to common or supply.
Description
Most Significant Data Bit (MSB).
Data Bits 12 to 1.
Least Significant Data Bit (LSB).
Power-Down Control Input. Active high. Contains active pull-down circuit; it may be left
unterminated if not used.
Reference Ground when Internal 1.2 V Reference Used. Connect to ACOM for both internal
and external reference operation modes.
Reference Input/Output. Serves as reference input when using external reference. Serves as
1.2 V reference output when using internal reference. Requires 0.1 µF capacitor to ACOM
when using internal reference.
Full-Scale Current Output Adjust.
No Internal Connection.
Analog Common.
Complementary DAC Current Output. Full-scale current when all data bits are 0s.
Analog Supply Voltage (3.3 V).
Selects Input Data Format. Connect to DCOM for straight binary, DVDD for twos complement.
Clock Mode Selection. Connect to CLKCOM for single-ended clock receiver (drive CLK+ and
float CLK−). Connect to CLKVDD for differential receiver. Float for PECL receiver (terminations
on-chip).
Digital Common.
Digital Supply Voltage (3.3 V).
Clock Input. Data latched on positive edge of clock.
Differential Clock Input.
Differential Clock Input.
Clock Supply Voltage (3.3 V).
Clock Common.
Rev. B | Page 7 of 32
DVDD 3
DB7 1
DB6 2
DB5 4
DB4 5
DB3 6
DB2 7
DB1 8
NC = NO CONNECT
Figure 4. 32-Lead LFCSP
(Not to Scale)
PIN 1
INDICATOR
AD9744
TOP VIEW
24 FS ADJ
23 REFIO
22 ACOM
21 IOUTA
20 IOUTB
19 ACOM
18 AVDD
17 AVDD
AD9744