MAX6120
Low-Cost, Micropower, Precision, 3-Terminal,
1.2V Voltage Reference
4 _______________________________________________________________________________________
__________Applications Information
Input Bypassing
For the best line-transient performance, decouple the
input with a 0.1µF ceramic capacitor as shown in the
Typical Operating Circuit
. Locate the capacitor as
close to the device pin as possible. Where transient
performance is less important, no capacitor is neces-
sary.
Output Bypass
The MAX6120 performs well without an output decou-
pling capacitor. If your application requires an output
charge reservoir (e.g., to decouple the reference from
the input of a DAC), then make sure that the total output
capacitive load does not exceed 10nF.
DAC
LATCH A
DAC A
DAC
LATCH B
DAC B
DAC
LATCH C
LATCH
DAC C
SCLK
OUTA
OUTB
OUTC
LOUT
DIN
+3V
0.1µF
V
IN
V
OUT
CS REFAB
REFC
RESET
V
DD
V
SS GND
16-BIT SHIFT REGISTER
CONTROL (8) DATA (8)
MAX512
MAX513
MAX6120
1
2
1
2
3
4
567
8
9
10
1112
14
3
0.01µF
Figure 1. 3V, Triple, 8-Bit Serial DAC
Figure 2. Low-Power ±1.2V Reference
+3V
-3V
V
IN
V
OUT
MAX6120
2
1
3
3
4
6
-1.2V
RR
+1.2V
2
7
MAX406A
_____________________Pin Description
No Connect—not internally
connected
N.C.—
GroundGND3
Reference OutputV
OUT
2
Input VoltageV
IN
1
FUNCTIONNAME
2, 3, 5,
6, 7
4
PIN
1
8
SOSOT23
___________________Chip Information
TRANSISTOR COUNT: 39
