DAC2904 Datasheet, PDF (4/19 Pages) Burr-Brown (TI) – Dual, 14-Bit, 125MSPS DIGITAL-TO-ANALOG CONVERTER

PIN CONFIGURATION
Top View
48 47 46 45 44 43 42 41 40 39 38 37
D13_1 (MSB) 1
D12_1 2
D11_1 3
D10_1 4
D9_1 5
D8_1 6
D7_1 7
D6_1 8
D5_1 9
D4_1 10
D3_1 11
D2_1 12
DAC2904
36 D0-2
35 D1-2
34 D2_2
33 D3_2
32 D4_2
31 D5_2
30 D6_2
29 D7_2
28 D8_2
27 D9_2
26 D10_2
25 D11_2
13 14 15 16 17 18 19 20 21 22 23 24
TQFP-48
PIN DESCRIPTIONS
PIN
1-14
15
16
17
18
19
20
21
22
23-36
37
38
39
40
41
42
43
DESIGNATOR
D[13:0]_1
DGND
+V_D
WRT1
CLK1
CLK2
WRT2
DGND
+V_D
D[13:0]_2
PD
AGND
I_OUT2
I_OUT2
FSA2
GSET
REF_IN
44
FSA1
45
I_OUT1
46
I_OUT1
47
+V_A
48
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