MAX6120 Maxim, MAX6120 Datasheet - Page 4

• Manufacturer Part Number: MAX6120
• Description: Low-Cost / Micropower / Precision / 3-Terminal / 1.2V Voltage Reference
• Manufacturer: Maxim

Low-Cost, Micropower, Precision, 3-Terminal,
1.2V Voltage Reference
_____________________Pin Description
Figure 1. 3V, Triple, 8-Bit Serial DAC
4
0.1µF
+3V
SOT23
—
_______________________________________________________________________________________
1
2
3
V
SCLK
PIN
IN
1
3
2, 3, 5,
MAX6120
6, 7
SO
1
8
1
4
DIN
3
RESET
4
NAME
V
GND
2
N.C.
CS
V
OUT
V
2
LATCH A
LATCH B
LATCH C
IN
0.01µF
LATCH
OUT
DAC
DAC
DAC
REFAB
12
Input Voltage
Reference Output
Ground
No Connect—not internally
connected
11
V
DD
DAC A
DAC B
DAC C
5
REFC
FUNCTION
V
SS
7
MAX512
MAX513
GND
6
OUTA
OUTB
OUTC
10
14
8
9
LOUT
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.
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.
Figure 2. Low-Power ±1.2V Reference
___________________Chip Information
TRANSISTOR COUNT: 39
__________Applications Information
V
IN
1
MAX6120
3
V
2
OUT
R
+1.2V
2
Input Bypassing
3
Output Bypass
MAX406A
4
-3V
+3V
7
R
6
-1.2V