MAX6126AASA50+T Maxim Integrated Products, MAX6126AASA50+T Datasheet

IC ULTRA-HI V-REF 5.0V 8-SOIC

MAX6126AASA50+T

Manufacturer Part Number
MAX6126AASA50+T
Description
IC ULTRA-HI V-REF 5.0V 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6126BASA25.pdf (18 pages)

Specifications of MAX6126AASA50+T

Reference Type
Series
Voltage - Output
5V
Tolerance
±0.02%
Temperature Coefficient
5ppm/°C
Voltage - Input
5.2 ~ 12.6 V
Number Of Channels
1
Current - Quiescent
550µA
Current - Output
10mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Product
Voltage References
Topology
Series References
Output Voltage
5 V
Initial Accuracy
0.02 %
Average Temperature Coefficient (typ)
1 PPM / C
Series Vref - Input Voltage (max)
13 V
Shunt Current (max)
10 mA
Maximum Operating Temperature
+ 125 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
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 0.025Ω for sink and source cur-
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, 2.800V, 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 inde-
pendent of supply voltage and does not require an
external resistor. The MAX6126 is stable with 0.1µF to
10µF of load capacitance.
The MAX6126 is available in the tiny 8-pin µMAX
well as 8-pin SO packages.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
19-2647; Rev 5; 12/10
Ordering Information continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX6126AASA21+
MAX6126BASA21+
MAX6126A21+
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
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
P-P
TEMP RANGE
General Description
Ultra-High-Precision, Ultra-Low-Noise,
and wideband noise as low as
Applications
PIN-
PACKAGE
8 SO
8 SO
8 µMAX
®
, as
VOLTAGE
OUTPUT
2.048
2.048
2.048
Series Voltage Reference
(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 0.025Ω (max) Load Regulation
o 20µV/V (max) Line Regulation
o Force and Sense Outputs for Remote Sensing
Output)
Range
MAXIMUM INITIAL
ACCURACY (%)
TOP VIEW
*I.C. = INTERNALLY CONNECTED. DO NOT USE.
OUT
0.06
0.02
0.06
+ 200mV) to 12.6V Supply Voltage
GNDS
LOAD
GND
NR
IN
P-P
1
2
4
3
Ordering Information
= 0.1µF to 10µF
Noise (0.1Hz to 10Hz, 2.048V
+
SO/µMAX
MAXIMUM TEMPCO
MAX6126
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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MAX6126AASA50+T Summary of contents

Page 1

... SO packages. 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 µMAX is a registered trademark of Maxim Integrated Products, Inc. PART TEMP RANGE MAX6126AASA21+ -40°C to +125°C MAX6126BASA21+ -40°C to +125°C MAX6126A21+ -40° ...

Page 2

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND) GNDS ....................................................................-0.3V to +0.3V IN ........................................................................... -0.3V to +13V OUTF, OUTS, NR........ -0.3V to the lesser of (V Output Short Circuit to GND or IN ..........................................60s Continuous ...

Page 3

Ultra-High-Precision, Ultra-Low-Noise, ELECTRICAL CHARACTERISTICS—MAX6126_21 ( 5V 0.1µ LOAD OUT A PARAMETER SYMBOL DYNAMIC CHARACTERISTICS Noise Voltage Turn-On Settling Time Capacitive-Load Stability Range C INPUT Supply Voltage Range Quiescent Supply Current ELECTRICAL ...

Page 4

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference ELECTRICAL CHARACTERISTICS—MAX6126_25 ( 5V 0.1µ LOAD OUT A PARAMETER SYMBOL Dropout Voltage (Note OUT Short-Circuit Current ∆V Thermal Hysteresis (Note 2) ∆V Long-Term ...

Page 5

Ultra-High-Precision, Ultra-Low-Noise, ELECTRICAL CHARACTERISTICS—MAX6126_28 ( 5V 0.1µ LOAD OUT A PARAMETER SYMBOL OUT Short-Circuit Current ∆V Thermal Hysteresis (Note 2) ∆V Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Turn-On Settling Time Capacitive-Load ...

Page 6

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference ELECTRICAL CHARACTERISTICS—MAX6126_30 ( 5V 0.1µ LOAD OUT A PARAMETER SYMBOL ∆V Line Regulation ∆V Load Regulation Dropout Voltage (Note OUT Short-Circuit Current ∆V ...

Page 7

Ultra-High-Precision, Ultra-Low-Noise, ELECTRICAL CHARACTERISTICS—MAX6126_41 ( 5V 0.1µ LOAD OUT A PARAMETER SYMBOL Output Voltage Temperature TCV Coefficient (Note 1) ∆V Line Regulation ∆V Load Regulation Dropout Voltage (Note ...

Page 8

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference ELECTRICAL CHARACTERISTICS—MAX6126_50 ( 5.5V 0.1µ LOAD OUT PARAMETER SYMBOL OUTPUT Output Voltage Output Voltage Accuracy Output Voltage Temperature TCV Coefficient (Note 1) ∆V Line Regulation ∆V ...

Page 9

Ultra-High-Precision, Ultra-Low-Noise, ELECTRICAL CHARACTERISTICS—MAX6126_50 ( 5.5V 0.1µ LOAD OUT PARAMETER SYMBOL Turn-On Settling Time INPUT Supply Voltage Range Quiescent Supply Current Note 1: Temperature coefficient is measured by the “box” method, ...

Page 10

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference ( for MAX6126_21/25/30/41 (Note 5) MAX6126A_50 OUTPUT VOLTAGE TEMPERATURE DRIFT (V = 5.000V) (µMAX) OUT 5.002 THREE TYPICAL PARTS 5.001 5.000 4.999 4.998 -50 - 100 ...

Page 11

Ultra-High-Precision, Ultra-Low-Noise for MAX6126_21/25/30/41 (Note 5) MAX6126_21 OUTPUT NOISE (0.1Hz TO 10Hz 2.048V OUT 1s/div MAX6126_21 LOAD TRANSIENT 200µs/div C = 0.1µ 10mA LOAD OUT ...

Page 12

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference ( for MAX6126_21/25/30/41 (Note 5) MAX6126_21 LOAD TRANSIENT 1ms/div C = 10µ -100µA TO 1mA LOAD OUT 2.048V IN OUT MAX6126_21 LINE TRANSIENT ...

Page 13

Ultra-High-Precision, Ultra-Low-Noise for MAX6126_21/25/30/41 (Note 5) MAX6126_21 TURN-ON TRANSIENT MAX6126 toc25 40µs/div C = 10µF LOAD V = 2.048V OUT MAX6126B_25 LONG-TERM STABILITY vs. TIME (µMAX) 2.5010 2.5005 2.5000 2.4995 TWO TYPICAL PARTS V ...

Page 14

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference Pin Description PIN NAME FUNCTION Noise Reduction. Connect a 0.1µF capacitor to improve wideband noise Leave unconnected if not used (see Figure 1 Positive Power-Supply Input 3 GND Ground Ground-Sense Connection. ...

Page 15

Ultra-High-Precision, Ultra-Low-Noise, racy is needed. The MAX6126 has the same type of Kelvin connection to cancel drops in the ground return line. Connect the load to ground and bring a connection from GNDS to exactly the same point. Applications Information ...

Page 16

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference 10,000 1000 100 TEMPERATURE 10 COEFFICIENT (ppm/°C) 1 0.1 0.01 1 Figure 4. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error Typical Operating Circuit (V + 200mV) TO 12.6V INPUT OUT ...

Page 17

Ultra-High-Precision, Ultra-Low-Noise, PART TEMP RANGE MAX6126B21+ -40°C to +125°C MAX6126AASA25+ -40°C to +125°C MAX6126BASA25+ -40°C to +125°C MAX6126A25+ -40°C to +125°C MAX6126B25+ -40°C to +125°C MAX6126A28+ -40°C to +125°C MAX6126B28+ -40°C to +125°C MAX6126AASA30+ -40°C to +125°C MAX6126BASA30+ -40°C to ...

Page 18

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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