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MAX494CSD-T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
Not Recommended for New Designs
The MAX495 was manufactured for Maxim by an outside wafer
foundry using a process that is no longer available. It is not
recommended for new designs. A Maxim replacement or an industry
second-source may be available. The data sheet remains available for
existing users. The other parts on the following data sheet are not
affected.
For further information, please see the QuickView data sheet for this
part or contact
technical support for assistance.
_______________General Description
The dual MAX492, quad MAX494, and single MAX495
operational amplifiers combine excellent DC accuracy
with rail-to-rail operation at the input and output. Since
the common-mode voltage extends from V
CC
to V
EE
,
the devices can operate from either a single supply
(+2.7V to +6V) or split supplies (±1.35V to ±3V). Each
op amp requires less than 150µA supply current. Even
with this low current, the op amps are capable of driving
a 1kΩ load, and the input referred voltage noise is only
25nV/√Hz. In addition, these op amps can drive loads in
excess of 1nF.
The precision performance of the MAX492/MAX494/
MAX495, combined with their wide input and output
dynamic range, low-voltage single-supply operation, and
very low supply current, makes them an ideal choice for
battery-operated equipment and other low-voltage appli-
cations. The MAX492/MAX494/MAX495 are available in
DIP and SO packages in the industry-standard op-amp
pin configurations. The MAX495 is also available in the
smallest 8-pin SO: the µMAX package.
________________________Applications
Portable Equipment
Battery-Powered Instruments
Data Acquisition
Signal Conditioning
Low-Voltage Applications
____________________________Features
♦ Low-Voltage Single-Supply Operation (+2.7V to +6V)
♦ Rail-to-Rail Input Common-Mode Voltage Range
♦ Rail-to-Rail Output Swing
♦ 500kHz Gain-Bandwidth Product
♦ Unity-Gain Stable
♦ 150µA Max Quiescent Current per Op Amp
♦ No Phase Reversal for Overdriven Inputs
♦ 200µV Offset Voltage
♦ High Voltage Gain (108dB)
♦ High CMRR (90dB) and PSRR (110dB)
♦ Drives 1kΩ Load
♦ Drives Large Capacitive Loads
♦ MAX495 Available in µMAX Package—8-Pin SO
______________Ordering Information
Ordering Information continued at end of data sheet.
*
Dice are specified at TA = +25°C, DC parameters only.
MAX492/MAX494/MAX495
Single/Dual/Quad, Micropower,
Single-Supply Rail-to-Rail Op Amps
________________________________________________________________
Maxim Integrated Products
1
1
2
3
4
8
7
6
5
V
CC
OUT2
IN2-
IN2+
V
EE
IN1+
IN1-
OUT1
MAX492
DIP/SO
TOP VIEW
1
2
3
4
8
7
6
5
N.C.
V
CC
OUT
NULL
V
EE
IN1+
IN1-
NULL
MAX495
DIP/SO/µMAX
_________________Pin Configurations
MAX187
(ADC)
GND
INPUT SIGNAL CONDITIONING FOR LOW-VOLTAGE ADC
V
DD
SERIAL
INTERFACE
6
8
7
3
1
4.096V
4
AIN
5
DOUT
SCLK
CS
SHDN
REF
2
ANALOG
INPUT
+5V
6
7
4
2
3
10k
10k
MAX495
__________Typical Operating Circuit
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
19-0265; Rev 2; 9/96
PART
MAX492CPA
MAX492CSA
MAX492C/D 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
MAX492EPA
MAX492ESA -40°C to +85°C
-40°C to +85°C 8 Plastic DIP
8 SO
MAX492MJA -55°C to +125°C 8 CERDIP
Pin Configurations continued at end of data sheet.
MAX492/MAX494/MAX495
Single/Dual/Quad, Micropower,
Single-Supply Rail-to-Rail Op Amps
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 2.7V to 6V, V
EE
= GND, V
CM
= 0V, V
OUT
= V
CC
/ 2, T
A
= +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 to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (V
CC
to V
EE
)....................................................7V
Common-Mode Input Voltage..........(V
CC
+ 0.3V) to (V
EE
- 0.3V)
Differential Input Voltage .........................................±(V
CC
- V
EE
)
Input Current (IN+, IN-, NULL1, NULL2)..........................±10mA
Output Short-Circuit Duration ....................Indefinite short circuit
to either supply
Voltage Applied to NULL Pins....................................V
CC
to V
EE
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C).........640mW
8-Pin µMAX (derate 4.1mW/°C above +70°C)..............330mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)...800mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C).......727mW
Operating Temperature Ranges
MAX49_C_ _ ........................................................0°C to +70°C
MAX49_E_ _......................................................-40°C to +85°C
MAX49_M_ _...................................................-55°C to +125°C
Junction Temperatures
MAX49_C_ _/E_ _..........................................................+150°C
MAX49_M_ _.................................................................+175°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
V
CM
= V
EE
to V
CC
V
CM
= V
OUT
= V
CC
/ 2
V
CM
= V
EE
to V
CC
V
CM
= V
EE
to V
CC
V
CC
= 2.7V,
R
L
= 100kΩ,
V
OUT
= 0.25V to 2.45V
V
CC
= 2.7V to 6V
(V
EE
- 0.25V) ≤ V
CM
≤ (V
CC
+ 0.25V)
R
L
= 100kΩ
CONDITIONS
µA
135 150
Supply Current (per amplifier)
V2.7 6.0Operating Supply Voltage Range
mA30Output Short-Circuit Current
V
EE
+ 0.04 V
EE
+ 0.075
V
V
CC
- 0.075 V
CC
- 0.04
Output Voltage Swing
(Note 1)
nA±0.5 ±6Input Offset Current
nA±25 ±60
µV±200 ±500Input Offset Voltage
Input Bias Current
90 102
dB
90 104
Large-Signal Voltage Gain
(Note 1)
dB88 110Power-Supply Rejection Ratio
MΩ2Differential Input Resistance
VV
EE
- 0.25 V
CC
+ 0.25
Common-Mode Input
Voltage Range
74 90
UNITSMIN TYP MAXPARAMETER
Sourcing
Sinking
V
CC
= 2.7V, R
L
= 1kΩ,
V
OUT
= 0.5V to 2.2V
Sourcing
Sinking 78 90
94 105
V
CC
= 5.0V,
R
L
= 100kΩ,
V
OUT
= 0.25V to 4.75V
Sourcing
Sinking 92 100
98 108
V
CC
= 5.0V, R
L
= 1kΩ,
V
OUT
= 0.5V to 4.5V
Sourcing
Sinking 86 98
98 110
V
OH
V
OL
V
OH
V
OL
R
L
= 1kΩ
V
EE
+ 0.15 V
EE
+ 0.20
V
CC
- 0.20 V
CC
- 0.15
150 170
V
CC
= 2.7V
V
CC
= 5V
Common-Mode Rejection Ratio dB
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MAX494CSD-T

Mfr. #:
Buy MAX494CSD-T
Manufacturer:
Maxim Integrated
Description:
Operational Amplifiers - Op Amps uPower Single-Supply Rail-Rail
Lifecycle:
New from this manufacturer.
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