MAX6126 Maxim, MAX6126 Datasheet
MAX6126
Manufacturer Part Number
MAX6126
Description
Ultra-High-Precision / Ultra-Low-Noise / Series Voltage Reference
Manufacturer
Maxim
Datasheet
1.MAX6126.pdf
(18 pages)
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The MAX6126 is an ultra-low-noise, high-precision, low-
dropout voltage reference. This family of voltage refer-
ences feature curvature-correction circuitry and
high-stability, laser-trimmed, thin-film resistors that
result in 3ppm/°C (max) temperature coefficients and
an excellent ±0.02% (max) initial accuracy. The propri-
etary low-noise reference architecture produces a low
flicker noise of 1.3µV
60nV/ Hz (2.048V output) without the increased supply
current usually found in low-noise references. Improve
wideband noise to 35nV/ Hz and AC power-supply
rejection by adding a 0.1µF capacitor at the noise
reduction pin. The MAX6126 series mode reference
operates from a wide 2.7V to 12.6V supply voltage
range and load-regulation specifications are guaran-
teed to be less than 0.025
rents up to 10mA. These devices are available over the
automotive temperature range of -40°C to +125°C.
The MAX6126 typically draws 380µA of supply current
and is available in 2.048V, 2.500V, 3.000V, 4.096V, and
5.000V output voltages. These devices also feature
dropout voltages as low as 200mV. Unlike conventional
shunt-mode (two-terminal) references that waste supply
current and require an external resistor, the MAX6126
offers supply current that is virtually independent of
supply voltage and does not require an external resis-
tor. The MAX6126 is stable with 0.1µF to 10µF of load
capacitance.
The MAX6126 is available in the tiny 8-pin µMAX, as
well as 8-pin SO packages.
19-2647; Rev 2; 6/03
Ordering Information continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX6126AASA21
MAX6126BASA21
MAX6126AAUA21
High-Resolution A/D and D/A Converters
ATE Equipment
High-Accuracy Reference Standard
Precision Current Sources
Digital Voltmeters
High-Accuracy Industrial and Process Control
PART
________________________________________________________________ Maxim Integrated Products
P-P
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
General Description
Ultra-High-Precision, Ultra-Low-Noise,
and wideband noise as low as
for sink and source cur-
Applications
PIN-
PACKAGE
8 SO
8 SO
8 µMAX
Series Voltage Reference
VOLTAGE
OUTPUT
2.048
2.048
2.048
(V)
o Ultra-Low 1.3µV
o Ultra-Low 3ppm/°C (max) Temperature Coefficient
o ±0.02% (max) Initial Accuracy
o Wide (V
o Low 200mV (max) Dropout Voltage
o 380µA Quiescent Supply Current
o 10mA Sink/Source-Current Capability
o Stable with C
o Low 20ppm/1000hr Long-Term Stability
o 0.025 (max) Load Regulation
o 20µV/V (max) Line Regulation
o Force and Sense Outputs for Remote Sensing
Output)
Range
MAXIMUM INITIAL
TOP VIEW
*I.C. = INTERNALLY CONNECTED. DO NOT USE.
ACCURACY (%)
OUT
0.02
0.06
0.06
GNDS
+ 200mV) to 12.6V Supply Voltage
GND
LOAD
NR
IN
P-P
1
2
4
3
Ordering Information
= 0.1µF to 10µF
Noise (0.1Hz to 10Hz, 2.048V
SO/ MAX
MAX6126
MAXIMUM TEMPCO
Pin Configuration
(-40°C to +85°C)
(ppm/°C)
3
5
3
6
8
7
5
I.C.*
OUTF
OUTS
I.C.*
Features
6126A21
MARK
TOP
—
—
1
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