High-Efficiency, 1.5MHz Amps with RRIO 59µA Quiescent Current Ver

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High-Efficiency, 1.5MHz Amps with RRIO 59µA Quiescent Current Ver

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19-4753; 9/09
High-Efficiency, 1.5MHz Amps with RRIO
59µA Quiescent Current Very-Low 10µV (max) Input Offset Voltage Input Noise 42nV/Hz 1kHz 1µVP-P from 0.1Hz 10Hz Rail-to-Rail Inputs Outputs 1.5MHz Ultra-Low 10pA Input Bias Current Single 1.8V 5.5V Supply Voltage Range Unity-Gain Stable Available Tiny 6-Pin SC70 (MAX9617) 8-Pin SC70 (MAX9618) Packages
General Description
MAX9617/MAX9618 low-power, zero-drift operational amplifiers, designed portable consumer, medical, industrial applications. MAX9617/MAX9618 feature rail-to-rail CMOS inputs outputs, 1.5MHz just 59FA supply current 10FV (max) zero-drift input offset voltage over time temperature. zero-drift feature MAX9617/ MAX9618 reduces high noise typically found CMOS input operational amplifiers, making useful wide variety low-frequency measurement applications. MAX9617 available space-saving, 2mm, 6-pin SC70 package. MAX9618 available 2mm, 8-pin SC70 package. devices specified over -40NC +125NC automotive operating temperature range.
MAX9617/MAX9618
Applications
Sensor Interfaces Loop-Powered Systems Portable Medical Devices Battery-Powered Devices Cardiac Monitors
PART MAX9617AXT+ MAX9618AXA+*
Ordering Information
TEMP RANGE -40NC +125NC -40NC +125NC PIN-PACKAGE SC70 SC70
+Denotes lead(Pb)-free/RoHS-compliant package. *Future product-contact factory availability.
Functional Diagrams
VIEW
MAX9617 MAX9618
OUTA INA-
OUTB INB5 INB+
INA+
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim Direct 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
High-Efficiency, 1.5MHz Amps with RRIO MAX9617/MAX9618
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDD GND).-0.3V Other Pins, .(GND 0.3V) (VDD 0.3V) Short-Circuit Duration Either Supply Rail, OUT, OUTA, OUTB. Continuous Input Current (any pins) ±20mA Continuous Power Dissipation +70NC) 6-Pin SC70 (derate 3.1mW/NC above +70NC) .245.4mW 8-Pin SC70 (derate 3.1mW/NC above +70NC) .245mW Operating Temperature Range -40NC +125NC Junction Temperature .+150NC Storage Temperature Range. -65NC +150NC Lead Temperature (soldering, 10s) .+300NC
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD +3.3V, VGND VIN+ VIN- VDD/2, 100kI VDD/2, -40NC +125NC, unless otherwise noted. Typical values +25NC.) (Note PARAMETER POWER SUPPLY Supply Voltage Range Supply Current (per Amplifier) Power-Supply Rejection Ratio (Note Power-Up Time SPECIFICATIONS Input Offset Voltage (Note Input Offset Voltage Drift (Note Input Bias Current (Note Input Offset Current DVOS Guaranteed CMRR test +25NC -40NC +125NC -0.1 -0.1 =+25NC -40NC +125NC 0.005 0.05 +25NC -40NC +125NC 0.01 0.14 nV/NC Guaranteed PSRR, +70NC Guaranteed PSRR, -40NC +125NC +25NC -40NC +125NC 1.8V 5.5V +25NC -40NC +125NC SYMBOL CONDITIONS UNITS
PSRR
+70NC, 1.6V 5.5V step, 1V/V
Input Common-Mode Range
Common-Mode Rejection Ratio (Note
-0.1V 0.1V, +25NC CMRR -0.1V 0.05V, -40NC +125NC 20mV VOUT 20mV, 100kI VDD/2 150mV VOUT 150mV, VDD/2
Open-Loop Gain (Note
AVOL
High-Efficiency, 1.5MHz Amps with RRIO
ELECTRICAL CHARACTERISTICS (continued)
(VDD +3.3V, VGND VIN+ VIN- VDD/2, 100kI VDD/2, -40NC +125NC, unless otherwise noted. Typical values +25NC.) (Note PARAMETER Input Resistance SYMBOL Differential Common mode 100kI VDD/2 Output-Voltage Swing Short-Circuit Current SPECIFICATIONS Gain-Bandwidth Product Slew Rate Input Voltage-Noise Density Input Voltage Noise Input Current-Noise Density Phase Margin Capacitive Loading Crosstalk GBWP VOUT 1kHz 0.1Hz 10Hz 1kHz 20pF sustained oscillation, 1V/V 10kHz (MAX9618) -100 V/Fs nV/Hz FVP-P fA/Hz Degrees VOUT VOUT VDD/2 600I VDD/2 100kI VDD/2 VDD/2 600I VDD/2 CONDITIONS UNITS
MAX9617/MAX9618
Note Specifications 100% tested +25NC (exceptions noted). temperature limits guaranteed design. Note Guaranteed design.
Typical Operating Characteristics
(VDD +3.3V, VGND outputs have 100kI connected VDD/2. +25NC, unless otherwise specified.)
OFFSET VOLTAGE HISTOGRAM
MAX9617 toc01
INPUT OFFSET VOLTAGE DRIFT HISTOGRAM
FREQUENCY
MAX9617 toc02
FREQUENCY OFFSET VOLTAGE (FV)
-0.03 -0.02 -0.01
0.01 0.02 0.03 0.04
OFFSET VOLTAGE DRIFT (FV/NC)
High-Efficiency, 1.5MHz Amps with RRIO MAX9617/MAX9618
Typical Operating Characteristics (continued)
(VDD +3.3V, VGND outputs have 100kI connected VDD/2. +25NC, unless otherwise specified.)
SUPPLY CURRENT SUPPLY VOLTAGE
MAX9617 toc03
SUPPLY CURRENT TEMPERATURE
SUPPLY CURRENT (FA)
MAX9617 toc04
INPUT OFFSET VOLTAGE INPUT COMMON MODE
MAX9617 toc05
SUPPLY CURRENT (FA) +25NC -40NC
(FV) -40NC +25NC
+125NC
+125NC
-0.1
SUPPLY VOLTAGE
TEMPERATURE (NC)
INPUT COMMON MODE
INPUT OFFSET VOLTAGE TEMPERATURE
MAX9617 toc06
INPUT BIAS CURRENT INPUT COMMON MODE
MAX9617 toc07
COMMON-MODE REJECTION RATIO FREQUENCY
CMRR (dB)
MAX9617 toc08
(FV)
INPUT BIAS CURRENT (pA) INVERTING INPUT -0.1 NONINVERTING INPUT
100k FREQUENCY (Hz)
TEMPERATURE (NC)
INPUT COMMON MODE
COMMON-MODE REJECTION RATIO TEMPERATURE
MAX9617 toc09
POWER-SUPPLY REJECTION RATIO FREQUENCY
MAX9617 toc10
OUTPUT-VOLTAGE SWING HIGH TEMPERATURE
0.38 0.36 0.34 (mV) 0.32 0.30 0.28 0.26 0.24 0.22 0.20
MAX9617 toc11
0.40
CMRR (dB)
PSRR (dB)
TEMPERATURE (NC)
100k FREQUENCY (Hz)
TEMPERATURE (NC)
High-Efficiency, 1.5MHz Amps with RRIO
Typical Operating Characteristics (continued)
(VDD +3.3V, VGND outputs have 100kI connected VDD/2. +25NC, unless otherwise specified.)
MAX9617/MAX9618
OUTPUT-VOLTAGE SWING TEMPERATURE
MAX9617 toc12
OPEN-LOOP GAIN FREQUENCY
MAX9617 toc13
INPUT VOLTAGE NOISE FREQUENCY
MAX9617 toc14
0.40 0.38 0.36 0.34 (mV) 0.32 0.30 0.28 0.26 0.24 0.22 0.20
OPEN LOOP GAIN (dB) -10m 100m
10,000 INPUT VOLTAGE NOISE (nV/Hz)
1000
100k FREQUENCY (Hz) 100k FREQUENCY (Hz)
TEMPERATURE (NC)
INPUT VOLTAGE 0.1Hz 10Hz NOISE
MAX9617 toc15
INPUT CURRENT NOISE FREQUENCY
MAX9617 toc16
1000 INPUT CURRENT NOISE (fA/Hz)
0.1FV/div
1s/div FREQUENCY (Hz)
SMALL-SIGNAL GAIN FREQUENCY
MAX9617 toc17
LARGE-SIGNAL GAIN FREQUENCY
MAX9617 toc18
SMALL-SIGNAL STEP RESPONSE TIME
MAX9617 toc19
SMALL-SIGNAL GAIN (dB) 100k
2VP-P LARGE-SIGNAL GAIN (dB)
100mVP-P
100mVP-P
50mV/div
100k
100Fs/div
FREQUENCY (kHz)
FREQUENCY (kHz)
High-Efficiency, 1.5MHz Amps with RRIO MAX9617/MAX9618
Typical Operating Characteristics (continued)
(VDD +3.3V, VGND outputs have 100kI connected VDD/2. +25NC, unless otherwise specified.)
LARGE-SIGNAL STEP RESPONSE TIME
MAX9617 toc20
CAPACITIVE LOAD ISOLATION RESISTOR
100mVP-P 1V/V CAPACITENCE (pF)
MAX9617 toc21
100mVP-P
10,000
500mV/div
1000 UNSTABLE
100Fs/div 1000 ISOLATION RESISTOR
Configurations
VIEW
OUTA INA- MAX9617 INA+ MAX9618 OUTB INB5 INB+
SC70
SC70
Description
MAX9617 MAX9618 NAME INOUT OUTA INAINA+ INB+ INBOUTB Positive Input Ground Negative Input Output Positive Supply Voltage. Bypass with 0.1FF capacitor. Channel Output Channel Negative Input Channel Positive Input Channel Positive Input Channel Negative Input Channel Output FUNCTION
High-Efficiency, 1.5MHz Amps with RRIO MAX9617/MAX9618
MAX9617
Figure Typical Application Circuit: Sallen-Key Active Lowpass Filter
Detailed Description
MAX9617 (single) MAX9618 (dual) precision, low-power amps ideal signal processing applications. These devices innovative autozero technique that allows precision noise with minimum amount power. input offset voltage, CMOS inputs, absence noise allows optimization active filter designs. MAX9617/MAX9618 achieve rail-to-rail performance input through low-noise charge pump. This ensures glitch-free, common-mode input voltage range extending from negative supply rail positive supply rail, eliminating crossover distortion common traditional n-channel/p-channel CMOS pair inputs, reducing harmonic distortion output. MAX9617/MAX9618 feature autozero circuit that allows device achieve less than 10FV (max) input offset voltage eliminates noise.
Applications Information
MAX9617/MAX9618 low-power, low-noise, precision operational amplifiers designed applications portable medical, such pulse oximetry, portable consumer, industrial markets. MAX9617/MAX9618 also ideal loop-powered systems that interface with pressure sensors strain gauges. Driving large capacitive loads cause instability many amps. MAX9617/MAX9618 stable with capacitive loads 400pF. Stability with higher capacitive loads improved adding isolation resistor series with op-amp output. This resistor improves circuit's phase margin isolating load capacitor from amplifier's output. graph Typical Operating Characteristics gives stable operation region capacitive load versus isolation resistors. MAX9617/MAX9618 operate either with single supply from +1.6V +5.5V with respect ground with dual supplies from Q0.8V Q2.75V. When used with dual supplies, bypass both supplies with their 0.1FF capacitor ground. When used with single supply, bypass with 0.1FF capacitor ground. Careful layout technique helps optimize performance decreasing amount stray capacitance amp's inputs outputs. decrease stray capacitance, minimize trace lengths placing external components close amp's pins.
Capacitive-Load Stability
Autozero
internal charge pump provides internal supply typically beyond upper rail. This internal rail allows MAX9617/MAX9618 achieve true rail-to-rail inputs outputs, while providing excellent common-mode rejection, power-supply rejection ratios, gain linearity. charge pump requires external components, most applications entirely transparent user. operating frequency well beyond unity-gain frequency amplifier, avoiding aliasing other signal integrity issues sensitive applications.
Internal Charge Pump
Power Supplies Layout
Chip Information
PROCESS: BiCMOS
High-Efficiency, 1.5MHz Amps with RRIO MAX9617/MAX9618
Package Information
latest package outline information land patterns, www.maxim-ic.com/packages. PACKAGE TYPE SC70 SC70 PACKAGE CODE X6SN-1 X8C+1 DOCUMENT 21-0077 21-0460
SC70, 6L.EPS
High-Efficiency, 1.5MHz Amps with RRIO
Package Information (continued)
latest package outline information land patterns, www.maxim-ic.com/packages.
MAX9617/MAX9618
High-Efficiency, 1.5MHz Amps with RRIO MAX9617/MAX9618
Revision History
REVISION NUMBER REVISION DATE 7/09 9/09 Initial release Removed references MAX9617 shutdown functionality DESCRIPTION PAGES CHANGED
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2009 Maxim Integrated Products Maxim registered trademark Maxim Integrated Products, Inc.

High-Efficiency, 1.5MHz Amps with RRIO 59µA Quiescent Current Ver

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