Datasheet

DAC904
4
SBAS095C
www.ti.com
Current
Sources
LSB
Switches
Segmented
MSB
Switches
+1.24V Ref.
Latches
14-Bit Data Input
D13.......D0
DAC904
FSA
BW
+V
D
+V
A
R
SET
AGND
NOTE: (1) Optional components.
CLK DGND
REF
IN
0.1µF
INT/EXT
I
OUT
I
OUT
BYP
PD
20pF
(1)
50Ω
50Ω
20pF
(1)
1:1
V
OUT
0.1µF
0.1µF
(1)
+5V +5V
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit 10
Bit 11
Bit 12
Bit 13
Bit 14
CLK
+V
D
DGND
NC
+V
A
BYP
I
OUT
I
OUT
AGND
BW
FSA
REF
IN
INT/EXT
PD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DAC904
PIN DESIGNATOR DESCRIPTION
1 Bit 1 Data Bit 1 (D13), MSB
2 Bit 2 Data Bit 2 (D12)
3 Bit 3 Data Bit 3 (D11)
4 Bit 4 Data Bit 4 (D10)
5 Bit 5 Data Bit 5 (D9)
6 Bit 6 Data Bit 6 (D8)
7 Bit 7 Data Bit 7 (D7)
8 Bit 8 Data Bit 8 (D6)
9 Bit 9 Data Bit 9 (D5)
10 Bit 10 Data Bit 10 (D4)
11 Bit 11 Data Bit 11 (D3)
12 Bit 12 Data Bit 12 (D2)
13 Bit 13 Data Bit 13 (D1)
14 Bit 14 Data Bit 14 (D0), LSB
15 PD Power Down, Control Input; Active
HIGH.
Contains internal pull-down circuit;
may be left unconnected if not used.
16 INT/EXT Reference Select Pin; Internal ( = 0) or
External ( = 1) Reference Operation
17 REF
IN
Reference Input/Ouput. See Applications
section for further details.
18 FSA Full-Scale Output Adjust
19 BW Bandwidth/Noise Reduction Pin:
Bypass with 0.1µF to +V
A
for Optimum
Performance. (Optional)
20 AGND Analog Ground
21 I
OUT
Complementary DAC Current Output
22 I
OUT
DAC Current Output
23 BYP Bypass Node: Use 0.1µF to AGND
24 +V
A
Analog Supply Voltage, 2.7V to 5.5V
25 NC No Internal Connection
26 DGND Digital Ground
27 +V
D
Digital Supply Voltage, 2.7V to 5.5V
28 CLK Clock Input
PIN DESCRIPTIONSPIN CONFIGURATION
Top View SO, TSSOP
TYPICAL CONNECTION CIRCUIT