MAX6126BASA50+T中文资料

General Description 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 P-P and wideband noise as low as

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?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, 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 MAX6126offers 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.Applications 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

Features

?Ultra-Low 1.3μV P-P Noise (0.1Hz to 10Hz, 2.048V Output)

?Ultra-Low 3ppm/°C (max) Temperature Coefficient ?±0.02% (max) Initial Accuracy

?Wide (V OUT + 200mV) to 12.6V Supply Voltage Range

?Low 200mV (max) Dropout Voltage

?380μA Quiescent Supply Current ?10mA Sink/Source-Current Capability

?Stable with C LOAD = 0.1μF to 10μF

?Low 20ppm/1000hr Long-Term Stability ?0.025?(max) Load Regulation

?20μV/V (max) Line Regulation

?Force and Sense Outputs for Remote Sensing MAX6126Ultra-High-Precision, Ultra-Low-Noise,Series Voltage Reference

________________________________________________________________Maxim Integrated Products 1

Pin Configuration Ordering Information

19-2647; Rev 4; 7/04

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at 0c0af7e3172ded630b1cb6d3.Ordering Information continued at end of data sheet.

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M A X 6126

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference 2_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

(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 IN + 0.3V) or +6V Output Short Circuit to GND or IN..........................................60s Continuous Power Dissipation (T A = +70°C)

8-Pin μMAX (derate 4.5mW/°C above +70°C) ............362mW 8-Pin SO (derate 5.88mW/°C above +70°C) ...............471mW

Operating Temperature Range ........................-40°C to +125°C Junction Temperature .....................................................+150°C Storage Temperature Range ............................-65°C to +150°C Lead Temperature (soldering, 10s) ................................+300°C

ELECTRICAL CHARACTERISTICS—MAX6126_21 (V OUT = 2.048V)

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MAX6126Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference

_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS—MAX6126_21 (V OUT = 2.048V) (continued)

ELECTRICAL CHARACTERISTICS—MAX6126_25 (V OUT = 2.500V)

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M A X 6126

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference

ELECTRICAL CHARACTERISTICS—MAX6126_25 (V OUT = 2.500V) (continued)

(V IN = 5V, C LOAD = 0.1μF, I OUT = 0, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)

ELECTRICAL CHARACTERISTICS—MAX6126_30 (V OUT = 3.000V)

(V IN = 5V, C LOAD = 0.1μF, I OUT = 0, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)

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MAX6126Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference

_______________________________________________________________________________________5ELECTRICAL CHARACTERISTICS—MAX6126_30 (V OUT = 3.000V) (continued)(V IN = 5V, C LOAD = 0.1μF, I OUT = 0, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)

ELECTRICAL CHARACTERISTICS—MAX6126_41 (V OUT = 4.096V)

(V = 5V, C = 0.1μF, I = 0, T = T to T , unless otherwise noted. Typical values are at T = +25°C.)

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M A X 6126

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