MAX6129 Maxim, MAX6129 Datasheet - Page 14

• Manufacturer Part Number: MAX6129
• Description: Ultra-Low-Power Series Voltage Reference
• Manufacturer: Maxim

In reality, the absolute static accuracy of a data con-
verter is dependent on the combination of many para-
meters such as integral nonlinearity, differential
nonlinearity, offset error, gain error, as well as voltage
reference changes.
These devices typically turn on and settle to within
0.1% of their final value in less than 1.4ms. The turn-on
time increases when heavily loaded and operating
close to dropout.
Ultra-Low-Power Series Voltage Reference
Figure 2. Positive and Negative References from a Single 3V/5V Supply
*Future product—contact factory for availability.
14
MAX6129AEUK21
MAX6129BEUK21
MAX6129AEUK25*
MAX6129BEUK25
MAX6129AEUK30
MAX6129BEUK30
MAX6129AEUK33
MAX6129BEUK33
MAX6129AEUK41
MAX6129BEUK41
MAX6129AEUK50
MAX6129BEUK50
______________________________________________________________________________________
PART
MAX681
V
GND
V
CC
IN
VOLTAGE
OUTPUT
2.048
2.048
2.500
2.500
3.000
3.000
3.300
3.300
4.096
4.096
5.000
5.000
(V)
V+
V-
-2V
IN
Turn-On Time
2V
IN
INITIAL ACCURACY
MAX6129
GND
IN
(%)
OUT
0.4
0.4
0.4
0.4
0.4
0.4
1
1
1
1
1
1
1MΩ
Figure 2 shows a typical method for developing a bipo-
lar reference. The circuit uses a MAX681 voltage dou-
bler/inverter charge-pump converter to power a
MAX480, creating a positive as well as a negative refer-
ence voltage.
TRANSISTOR COUNT: 30
PROCESS: BiCMOS
1MΩ
Positive and Negative Low-Power Voltage
10nF
TEMPERATURE
COEFFICIENT
(ppm/°C)
100
100
100
100
100
100
V+
MAX480
V-
40
40
40
40
40
40
+REF
OUTPUT
-REF
OUTPUT
Chip Information
Selector Guide
TOP MARK
ADRM
ADRW
ADRN
ADRO
ADRQ
ADRU
ADRP
ADRR
ADRX
ADRS
ADRT
ADRV
Reference