Rainbow Electronics MAX510 - Manual (Page 8)

MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
8 _______________________________________________________________________________________
NAME FUNCTION
1 OUTB DAC B Voltage Output
2 OUTA DAC A Voltage Output
3 V SS Negative Power Supply, 0V to -5V ±10%. Connect to AGND for single-supply operation.
PIN
MAX509 MAX510
1
2
4 REFB Reference Voltage Input for DAC B
– REFAB Reference Voltage Input for DACs A and B
5 REFA Reference Voltage Input for DAC A
6 AGND Analog Ground
3
–
4
7, 14 N.C. Not Internally Connected
8 DGND Digital Ground
–
5
–
6
______________________________________________________________Pin Description
10 DOUT 8
9 LDAC 7
11 CLR 9
12 DIN 10
13 SCLK 11
15 CS 12
16 REFD Reference Voltage Input for DAC D –
– REFCD Reference Voltage Input for DACs C and D 13
Load DAC Input (active low). Driving this asynchronous input low (level sensitive)
transfers the contents of each input latch to its respective DAC latch.
Serial Data Output. Can sink and source current. Data at DOUT is adjustable to be
clocked out on rising or falling edge of SCLK.
17 REFC Reference Voltage Input for DAC C –
18 V DD Positive Power Supply, +5V ±10% 14
19 OUTD DAC D Output Voltage 15
20 OUTC DAC C Output Voltage 16
Clear DAC input (active low). Driving CLR low causes an asynchronous clear of input
and DAC registers and sets all DAC outputs to zero.
Serial Data Input. TTL/CMOS-compatible input. Data is clocked into DIN on the
rising edge of SCLK.
CS must be low for data to be clocked in.
Serial Clock Input. Data is clocked in on the rising edge and clocked out on either the
rising (default) or the falling edge.
Chip-Select Input (active low). Data is shifted in and out when CS is low. Programming
commands are executed when CS rises.