PIN CONFIGURATION
Top View
TQFP-48
AGND
38
REF
IN
GSET
FSA1
I
OUT
1
FSA2
I
OUT
1
I
OUT
2
I
OUT
2
+V
A
NC
48
D13_1 (MSB)
D12_1
D11_1
D10_1
D9_1
D8_1
D7_1
D6_1
D5_1
1
2
3
4
5
6
7
8
9
47
46
45
44
43
42
41
40
39
37
36 D0-2
35 D1-2
34 D2_2
33 D3_2
32 D4_2
PD
31 D5_2
30 D6_2
29 D7_2
28 D8_2
27 D9_2
26 D10_2
25 D11_2
24
D12_2
DAC2904
D4_1 10
D3_1 11
D2_1 12
13
D1-1
14
D0-1
15
DGND
16
+V
D
17
WRT1
18
CLK1
19
CLK2
20
WRT2
21
DGND
22
+V
D
23
D13_2 (MSB)
PIN DESCRIPTIONS
PIN
1-14
15
16
17
18
19
20
21
22
23-36
37
38
39
40
41
42
43
44
45
46
47
48
DESIGNATOR
D[13:0]_1
DGND
+V
D
WRT1
CLK1
CLK2
WRT2
DGND
+V
D
D[13:0]_2
PD
AGND
I
OUT
2
I
OUT
2
FSA2
GSET
REF
IN
FSA1
I
OUT
1
I
OUT
1
+V
A
NC
DESCRIPTION
Data Port DAC1, Data Bit 13 (MSB) to Bit 0 (LSB).
Digital Ground
Digital Supply, +3.0V to +5.5V
DAC1 Input Latches Write Signal
Clock Input DAC1
Clock Input DAC2
DAC2 Input Latches Write Signal
Digital Ground
Digital Supply, +3.0V to +5.5V
Data Port DAC2, Data Bit 13 (MSB) to Bit 0 (LSB).
Power-Down Function Control Input; “H” = DAC in power-down mode; “L” = DAC in normal operation (Internal pull-down for default “L”).
Analog Ground
Current Output DAC2. Full-scale with all bits of data port 2 high.
Complementary Current Output DAC2. Full-scale with all bits of data port 2 low.
Full-Scale Adjust, DAC2. Connect External R
SET
Resistor
Gain-Setting Mode (H = 1 Resistor, L = 2 Resistors)
Internal Reference Voltage output; External Reference Voltage input. Bypass with 0.1µF to AGND for internal reference
operation.
Full-Scale Adjust, DAC1. Connect External R
SET
Resistor
Complementary Current Output DAC1. Full-scale with all bits of data port 1 low.
Current Output DAC1. Full-scale with all bits of data port 1 high.
Analog Supply, +3.0V to +5.5V
No Connection
4
DAC2904
SBAS198B
BURR-BROWN [ BURR-BROWN CORPORATION ]
