MAX6129AEUK33+T Maxim Integrated Products, MAX6129AEUK33+T Datasheet - Page 14

• Manufacturer Part Number: MAX6129AEUK33+T
• Description: IC REF VOLT 3.30V SOT23-5
• Manufacturer: Maxim Integrated Products

Specifications of MAX6129AEUK33+T

• Package / Case: SOT-23-5, SC-74A, SOT-25
• Mounting Type: Surface Mount
• Current - Output: 4mA
• Voltage - Output: 3.3V
• Voltage - Input: 3.5 ~ 12.6 V
• Operating Temperature: -40°C ~ 85°C
• Temperature Coefficient: 40ppm/°C
• Tolerance: ±0.4%
• Number Of Channels: 1
• Reference Type: Series
• Current - Quiescent: 7.25µA
• Product: Voltage References
• Topology: Series References
• Output Voltage: 3.3 V
• Initial Accuracy: 0.4 %
• Average Temperature Coefficient (typ): 40 PPM / C
• Series Vref - Input Voltage (max): 13 V
• Shunt Current (max): 4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Cathode: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Ultra-Low-Power Series Voltage Reference
Figure 2. Positive and Negative References from a Single 3V/5V Supply
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.
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MAX681
V
GND
V
CC
IN
V+
V-
-2V
IN
Turn-On Time
2V
IN
MAX6129
GND
IN
OUT
1MΩ
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.
Positive and Negative Low-Power Voltage
10nF
V+
MAX480
V-
+REF
OUTPUT
-REF
OUTPUT
Reference