PIN CONFIGURATION
Top View
TQFP-48
48 47 46 45 44 43 42 41 40 39 38 37
D11_1 (MSB)
1
2
3
4
5
6
7
8
9
36 NC
D10_1
D9_1
D8_1
D7_1
D6_1
D5_1
D4_1
D3_1
35 NC
34 D0_2
33 D1_2
32 D2_2
31 D3_2
30 D4_2
29 D5_2
28 D6_2
27 D7_2
26 D8_2
25 D9_2
DAC2902
D2_1 10
D1_1 11
D0_1 12
13 14 15 16 17 18 19 20 21 22 23 24
PIN DESCRIPTIONS
PIN
DESIGNATOR
DESCRIPTION
1-12
13, 14
15
D[11:0]_1
NC
Data Port DAC1, Data Bit 11 (MSB) to Bit 0 (LSB).
No Connection
DGND
+VD
Digital Ground
16
Digital Supply, +3.0V to +5.5V
DAC1 Input Latches Write Signal
Clock Input DAC1
17
WRT1
CLK1
CLK2
WRT2
DGND
+VD
18
19
Clock Input DAC2
20
DAC2 Input Latches Write Signal
Digital Ground
21
22
Digital Supply, +3.0V to +5.5V
Data Port DAC2, Data Bit 11 (MSB) to Bit 0 (LSB).
No Connection
23-34
35, 36
37
D[11:0]_2
NC
PD
Power-Down Function Control Input; “H” = DAC in power-down mode; “L” = DAC in normal operation (Internal pull-down for default “L”).
Analog Ground
38
AGND
39
IOUT
IOUT
2
2
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 RSET Resistor
40
41
FSA2
GSET
REFIN
42
Gain-Setting Mode (H = 1 Resistor, L = 2 Resistor)
43
Internal Reference Voltage output; External Reference Voltage input. Bypass with 0.1µF to AGND for internal reference
operation.
44
45
46
47
48
FSA1
Full-Scale Adjust, DAC1. Connect External RSET Resistor
IOUT
IOUT
1
1
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
+VA
NC
No Connection
DAC2902
SBAS167A
4
BB [ BURR-BROWN CORPORATION ]
