MAX5753/MAX5754/MAX5755
32-Channel, 14-Bit, Voltage-Output
DACs with Serial Interface
______________________________________________________________________________________ 11
PIN
TQFN TQFP
NAME FUNCTION
1, 42, 48 1, 48, 55 AV
CC
Output Amplifier Positive Supply Input. Bypass to V
SS
with a 0.1µF capacitor.
2 2 OUT9 DAC9 Buffered Analog Output Voltage
3 3 OUT8 DAC8 Buffered Analog Output Voltage
4 4 OUT7 DAC7 Buffered Analog Output Voltage
5
5, 15–18,
33, 34, 49,
64
N.C. No Connection. Internally connected. Do not make any connections to N.C.
6 6 OUT6 DAC6 Buffered Analog Output Voltage
7 7 OUT5 DAC5 Buffered Analog Output Voltage
8 8 OUT4 DAC4 Buffered Analog Output Voltage
9, 38 9, 44 AGND Analog Ground
10 10 OUT3 DAC3 Buffered Analog Output Voltage
11, 28, 39 11, 32, 45 V
SS
Output-Amplifier Negative-Supply Input
12 12 OUT2 DAC2 Buffered Analog Output Voltage
13 13 OUT1 DAC1 Buffered Analog Output Voltage
14 14 OUT0 DAC0 Buffered Analog Output Voltage
15 19 DSP
Digital Serial-Interface Select Input. Drive low for DSP interface mode. Drive high for SPI-
interface mode.
16 20 CS Active-Low Digital Chip-Select Input
17 21 DOUT
Digital Serial Data Output. Use DOUT to daisy chain and read the contents of the DAC
registers.
18 22 SCLK Digital Serial Clock Input Clock
19 23 DIN Digital Serial Data Input
20 24 DV
DD
Digital Power-Supply Input. Bypass to DGND with a 0.1µF capacitor.
21 25 DGND Digital Ground
22 26 LDAC
Active-Low Digital-Load DAC Input. Drive this asynchronous input low to transfer the
contents of the input register to their respective DAC registers and set all DAC outputs
accordingly.
23 27 CLR
Active-Low Digital-Clear Input. Drive this asynchronous input low to clear the contents of
the input and DAC registers and set all the DAC outputs to zero.
24 28 GS
Ground-Sense Analog Input. Offsets the DAC amplifier outputs by ±0.5V to compensate
for a remote system ground potential difference.
25, 49 29, 56 REFGND Reference Ground
26 30 REF Analog Reference Voltage Input
27, 50 31, 57 AV
DD
Analog Power-Supply Input. Bypass to AGND with a 0.1µF capacitor.
29 35 OUT31 DAC31 Buffered Analog Output Voltage
30 36 OUT30 DAC30 Buffered Analog Output Voltage
31 37 OUT29 DAC29 Buffered Analog Output Voltage
32 38 OUT28 DAC28 Buffered Analog Output Voltage
