MAX478CSA+ ,17µA Max, Dual Quad, Single-Supply, Precision Op Amps Not Recommended for New Designs This product was manufactured for Maxim by an outside wafer foun ..
MAX478CSA+T ,17µA Max, Dual Quad, Single-Supply, Precision Op AmpsApplicationsMAX478C/D 0°C to +70°C Dice*MAX478EPA -40°C to +85°C 8 Plastic DIPBattery- or Solar-Pow ..
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MAX478ESA ,17レA Max, Dual/Quad, Single-Supply, Precision Op AmpsFeatures' 17µA Max Supply Current (MAX478A/MAX479A)The MAX478 and MAX479 are dual and quad micro-po ..
MAX478ESA+ ,17µA Max, Dual Quad, Single-Supply, Precision Op AmpsApplications Tech Support. Downloaded from: http://www.ic-phoenix.com/stock/MAX478/MAX47919-01 ..
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MAX478CPA+-MAX478CSA+-MAX478CSA+T-MAX478ESA+-MAX479CSD+-MAX479ESD+-MAX479ESD+T
17µA Max, Dual Quad, Single-Supply, Precision Op Amps
Not Recommended for New Designs This product was manufactured for Maxim by an outside wafer foundry
using a process that is no longer available. It is not recommended for
new designs. The data sheet remains available for existing users.
A Maxim replacement or an industry second-source may be available.
Please see the QuickView data sheet for this part or contact technical
support for assistance.
For further information, contact Maxim’s Applications Tech Support.
7μA Max, Dual/Quad, Single-Supply,Precision Op AmpsOUTB
INB-
INB+V-
INA+
INA-
OUTA
MAX478
DIP/SOTOP VIEW
OUTD
IND-
IND+V+
INA+
INA-
OUTA
MAX479
DIP/SOINC+
INC-
OUTCOUTB
INB-
INB+DC
_________________Pin ConfigurationsR2R2R1
+5V
VOUT
MICROPOWER, HIGH INPUT IMPEDANCE DIFFERENTIAL
AMPLIFIER WITH VARIABLE GAIN IN 8-PIN DIP/SO1/2MAX478
1/2MAX478
VOUT = (V1-V2) (1 + R1 + 2 R1)
R2 R3
__________Typical Operating Circuit19-0127; Rev. 1; 11/98
_______________General DescriptionThe MAX478 and MAX479 are dual and quad micro-
power, precision op amps available in 8-pin and 14-pinDIP and small-outline packages, respectively. Both
devices feature an extremely low, 17µA max supply
current per op amp, 70µV max offset voltage, 2.2µV/°C
max offset voltage drift (0.5µV/°C typ), and 250pA max
input offset current.
The MAX478 and MAX479 operate from a single sup-
ply. The input voltage range includes ground, and the
output swings to within a few millivolts of ground, whicheliminates pull-down resistors and saves power.
Both devices are optimized for single 3V and 5V sup-ply operation, with guaranteed specifications at each
supply voltage. Specifications for ±15V operation are
also provided.
_______________________ApplicationsBattery- or Solar-Powered Systems:Portable InstrumentationRemote Sensor Amplifier
Satellite Circuitry
Micropower Sample-and-Hold
Thermocouple Amplifier
Micropower Filters
Single Lithium Cell Powered Systems
___________________________Features17μA Max Supply Current(MAX478A/MAX479A)70μV Max Offset Voltage(MAX478A)Single-Supply Operation:
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
No Pull-Down Resistors RequiredDual Op Amp in 8-Pin DIP/SO Package (MAX478)
Quad Op Amp in 14-Pin DIP/SO Package(MAX479)250pA Max Input Offset Current
(MAX478A/MAX479A)0.5μV/°C Offset-Voltage DriftOutput Sources and Sinks 5mA Load Current
______________Ordering Information
PARTTEMP. RANGEPIN-PACKAGE
MAX478ACPA0°C to+70°C8 Plastic DIP
MAX478CPA0°C to+70°C8 Plastic DIP
MAX478CSA0°C to+70°C8 SO
MAX478C/D0°C to+70°CDice*
MAX478EPA-40°C to+85°C8 Plastic DIP
MAX478ESA-40°C to+85°C8 SO
MAX479ACPD0°C to+70°C14 Plastic DIP
MAX479CPD0°C to+70°C14 Plastic DIP
MAX479CSD0°C to+70°C14 SO
MAX479EPD-40°C to+85°C14 Plastic DIP
MAX479ESD-40°C to+85°C14 SO
* Dice are specified at TA= +25°C, DC parameters only.
7μA Max, Dual/Quad, Single-Supply,Precision Op AmpsSupply Voltage..............................................±22V
Differential Input Voltage....................................±30V
Input Voltage...................Equal to Positive Supply Voltage
...............................5V Below Negative Supply Voltage
Output Short-Circuit Duration.........................Continuous
Continuous Power Dissipation (TA= +70°C):
8-Pin Plastic DIP(derate 9.09mW/°C above +70°C).....727mW
14-Pin Plastic DIP(derate 10.00mW/°C above +70°C)..800mW
14-Pin Wide SO(derate 9.52mW/°C above +70°C)...762mW
Operating Temperature Ranges:
MAX47_ACP_/C_ _...............................0°C to +70°C
MAX47_E_ _....................................-40°C to +85°C
Storage Temperature Range...................-65°C to +150°C
Lead Temperature (soldering, 10sec)....................+300°C
ELECTRICAL CHARACTERISTICS: 5V(VS= 5V, 0V, VCM= 0.1V, VO= 1.4V, TA= +25°C, unless otherwise noted.)
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 toabsolute maximum rating conditions for extended periods may affect device reliability.
ABSOLUTE MAXIMUM RATINGS
PARAMETERSYMBOLCONDITIONS
MAX478C/E
MAX479C/E
MINTYPMAX
UNITSInput Offset VoltageVOS
MAX478ACP/CP/EP307040120MAX479ACP/CP/EP3510040150
MAX478CS/ES80180
MAX479CS/ES90250VOSTime0.50.6µV/Mo.
IOS0.050.250.050.35nA
Input Bias CurrentIB3536nA
Input Noise Voltageen0.1Hz to 10Hz (Note 1)0.92.00.9µVp-p
Input Noise Voltage
Density= 10Hz (Note 1)507550nV/√Hzfo= 1000Hz (Note 1)496549
Input Noise Currentin0.1Hz to 10Hz (Note 1)1.52.51.5pAp-p
Input Noise Current
Density= 10Hz (Note 1)0.03pA/√Hzfo= 1000Hz0.010.01
Input ResistanceRINDifferential mode (Note 1)0.82.00.62.0GΩCommon mode1212
Input Voltage RangeVIN (CM)Upper limit3.53.93.53.9VLower limit0-0.30-0.3
CMRRVCM= 0V to 3.5V9310390102dB
Power-Supply
Rejection RatioPSRRVS= 2.2V to 12V9410492104dB
Large-Signal Voltage GainAVOL140700110700V/mV= 0.03V to 3.5V, RL= 50kΩ8020070200
MAX478AC
MAX479AC
MINTYPMAXLong-Term Input Offset-
Voltage Stability
Input Offset Current
Common-Mode
Rejection Ratio= 0.03V to 4V, no load
(Note 1)
0.030.07
7μA Max, Dual/Quad, Single-Supply,Precision Op Amps
PARAMETERSYMBOLCONDITIONS
MAX478AC
MAX479AC
MINTYPMAX
MAX478C/E
MAX479C/E
MINTYPMAX
UNITSOutput Voltage SwingVOUT
Output low, no load6.59.06.59.0Output low, 2kΩto GND0.20.60.20.6
Output low, ISINK= 100µA120160120160
4.24.4VOutput high, 2kΩto GND3.53.83.53.8
Slew RateSRAV= +1, CL= 1pF (Note 1)0.0130.0250.0130.025V/µs
Gain-Bandwidth ProductGBWfO≤5kHz6060kHz
Channel SeparationDVIN= 3V, RL= 10kΩ130130dB
Minimum Supply VoltageVS(Note 2)2.02.22.02.2V13181421µASupply Current per
AmplifierVS= ±1.5V, VO= 0V12171320
Output high, no load
ELECTRICAL CHARACTERISTICS: 5V (continued)(VS= 5V, 0V, VCM= 0.1V, VO= 1.4V, TA= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS: 5V
(VS= 5V, 0V, VCM= 0.1V, VO= 1.4V, TA= 0°C to +70°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONS
MAX478AC
MAX479AC
MINTYPMAX
MAX478C
MAX479C
MINTYPMAX
UNITSMAX479CS130400
Input Offset VoltageVOS
MAX478ACP/CP5017065250MAX479ACP/CP6020070290
MAX478CS120300
Input Offset Voltage DriftDVOST
MAX47_ACP/CP (Note 1)0.52.20.63.0µV/°CMAX47_CS (Note 1)0.84.5
Input Offset CurrentIOS0.060.350.060.50nA
Input Bias CurrentIB3637nA
CMRRVCM= 0V to 3.4V9010186100dB
Power-Supply
Rejection RatioPSRRVS= 2.5V to 12V9010288102dB
Large-Signal
Voltage GainAVOL10550080500V/mV5516045160
Output Voltage SwingVOUT
Output low, no load811811mVOutput low, ISINK= 100µA140190140190
Output high, no load4.14.34.14.3VOutput high, 2kΩto GND3.33.83.33.8
Supply Current per AmplifierIS14211524µA
Common-Mode
Rejection Ratio= 0.05V to 4V, no load (Note 1)
VO= 0.05V to 3.5V, RL= 50kΩ
7μA Max, Dual/Quad, Single-Supply,Precision Op Amps
ELECTRICAL CHARACTERISTICS: 5V (VS= 5V, 0V, VCM= 0.1V, VO= 1.4V, TA= -40°C to +85°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONS
MAX478EP
MAX479EP
MINTYPMAX
MAX478ES
MAX479ES
MINTYPMAX
UNITSInput Offset Voltage DriftDVOST(Note 1)0.63.00.84.5µV/°C
Input Offset CurrentIOS0.070.70.070.7nA
Input Bias CurrentIB4848nA
Common-Mode
Rejection RatioCMRRVCM= 0.05V to 3.2V84988498dB
Input Offset VoltageVOSMAX47880315150400µV
Power-Supply
Rejection RatioPSRRVS= 3.0V to 12V8610086100dB
Large-Signal
Voltage GainAVOLVO= 0.05V to 4V, no load (Note 1)5535055350V/mV
MAX47980345160530
VO= 0.05V to 3.5V, RL= 50kΩ3513035130
Output Voltage SwingVOUT
Output low, no load913913mVOutput low, ISINK= 100µA160220160220
Output high, no load3.94.23.94.2VOutput high, 2kΩto GND3.03.73.03.7
Supply Current per AmplifierIS15271527µA
7μA Max, Dual/Quad, Single-Supply,Precision Op Amps
ELECTRICAL CHARACTERISTICS: 3V (VS= 3V, 0V, VCM= 0.1V, VO= 0.8V, TA= +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONS
MAX478AC
MAX479AC
MINTYPMAX
MAX478C/E
MAX479C/E
MINTYPMAX
UNITSMAX479CS/ES
Input Offset CurrentIOS270
0.050.05nA
Input Bias CurrentIB33nA
Common-Mode
Rejection RatioCMRRVCM= 0V to 1.7V9310390102dB
Input Offset VoltageVOS
MAX478ACP/CP/EP309040140MAX479ACP/CP/EP3512040170
Power-Supply
Rejection RatioPSRRVS= 2.2V to 12V9410492104dB
Large-Signal
Voltage GainAVOL100600100600V/mV
MAX478CS/ES80200
VO= 0.03V to 1.5V, RL= 50kΩ3018030180
Output Voltage SwingVOUT
Output low, no load6969mVOutput low, 2kΩto GND0.20.60.20.6
Output high, no load2.22.42.22.4VOutput high, 2kΩto GND1.82.01.82.0
Supply Current per AmplifierIS12171320µA
Input Noise VoltageeN0.1Hz to 10Hz1.01.0µVp-p
Input Voltage RangeVIN (CM)Upper limit1.71.91.71.9VLower limit0-0.3
Gain-Bandwidth ProductGBWfO≤5kHz5050kHz
Minimum Supply VoltageVS2.22.2V= 0.03V to 2V, no load
(Note 1)-0.3
With 300µV VOSdegradation1.71.7
7μA Max, Dual/Quad, Single-Supply,Precision Op Amps
ELECTRICAL CHARACTERISTICS: ±15V (VS= ±15V, TA= +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONS
MAX478AC
MAX479AC
MINTYPMAX
MAX478C/E
MAX479C/E
MINTYPMAX
UNITSInput Voltage RangeVIN (CM)Upper limit13.513.913.513.9VLower limit-15.0-15.3
Input Offset CurrentIOS
0.050.250.050.35nA
Input Bias CurrentIB3536nA
Common-Mode
Rejection RatioCMRRVCM= +13.5V, -15V9710694106dB
Slew RateSRAV= +1V, CL= 15pF
Power-Supply
Rejection RatioPSRRVS= 5V, 0V to ±15V9611294112dB
0.020.040.020.04V/µs211725
Gain-Bandwidth ProductGBWfO≤5kHz8585kHz
Input Offset VoltageVOS80350100480µVSupply Current per AmplifierµA
Large-Signal
Voltage GainAVOLVO= ±10V, RL= 50kΩ30012002501000V/mVVO= ±10V, no load60025004002500
Output Voltage SwingVOUTRL= 50kΩ±13.0±14.2±13.0±14.2VRL= 2kΩ±11.0±12.7±11.0±12.7
