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PDF OP490 Data sheet ( Hoja de datos )
| Número de pieza | OP490 | |
| Descripción | Low Voltage Micropower Quad Operational Amplifier | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
Single/Dual Supply Operation
+1.6 V to +36 V
؎0.8 V to ؎18 V
True Single-Supply Operation; Input and Output
Voltage Ranges Include Ground
Low Supply Current: 80 A max
High Output Drive: 5 mA min
Low Offset Voltage: 0.5 mA max
High Open-Loop Gain: 700 V/mV min
Outstanding PSRR: 5.6 V/V min
Industry Standard Quad Pinouts
Available in Die Form
GENERAL DESCRIPTION
The OP490 is a high-performance micropower quad op amp
that operates from a single supply of +1.6 V to +36 V or from
dual supplies of ± 0.8 V to ± 18 V. Input voltage range includes
the negative rail allowing the OP490 to accommodate input sig-
nals down to ground in single-supply operation. The OP490’s
output swing also includes ground when operating from a single
supply, enabling “zero-in, zero-out” operation.
The quad OP490 draws less than 20 µA of quiescent supply
current per amplifier, but each amplifier is able to deliver over
5 mA of output current to a load. Input offset voltage is under
0.5 mV with offset drift below 5 µV/°C over the military tem-
perature range. Gain exceeds over 700,000 and CMR is better
than 100 dB. A PSRR of under 5.6 µV/V minimizes offset volt-
age changes experienced in battery powered systems.
The quad OP490 combines high performance with the space
and cost savings of quad amplifiers. The minimal voltage and
current requirements of the OP490 makes it ideal for battery
and solar powered applications, such as portable instruments
and remote sensors.
Low Voltage Micropower
Quad Operational Amplifier
OP490
PIN CONNECTION
14-Pin Hermetic DIP (Y-Suffix)
14-Pin Plastic DIP (P-Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
16-Pin SOL (S-Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
NC 8
16 OUT D
15 –IN D
14 +IN D
13 V–
12 +IN C
11 –IN C
10 OUT C
9 NC
NC = NO CONNECT
28-Pin LCC (TC-Suffix)
4 3 2 1 28 27 26
NC 5
+IN A 6
NC 7
V+ 8
NC 9
+IN B 10
NC 11
25 NC
24 +IN D
23 NC
22 V–
21 NC
20 +IN C
19 NC
12 13 14 15 16 17 18
NC = NO CONNECT
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
1 page  
OP490
Wafer Test Limits (@ VS = ؎1.5 V to ؎15 V, TA = +25؇C, unless otherwise noted)
Parameter
Symbol
Conditions
Limits
Units
Input Offset Voltage
Input Offset Current
Input Bias Current
Large Signal Voltage Gain
VOS
IOS
IB
AVO
Input Voltage Range
Output Voltage Swing
Common-Mode Rejection
Power Supply Rejection Ratio
Supply Current (All Amplifiers)
IVR
VO
VOH
VOL
CMR
PSRR
ISY
VCM = 0 V
VCM = 0 V
VS = ± 15 V, VO = ± 10 V
RL = 100 kΩ
RL = 10 kΩ
V+ = 5 V, V– = 0 V
1 V < VO < 4 V, RL = 100 kΩ
V+ = 5 V, V– = 0 V
VS = ± 15 V1
VS = ± 15 V
RL = 10 kΩ
RL = 2 kΩ
V+ = 5 V, V– = 0 V
RL = 2 kΩ
V+ = 5 V, V– = 0 V
RL = 10 kΩ
V+ = 5 V, V– = 0 V, 0 V < VCM < 4 V
VS = ± 15 V, –15 V < VCM < 13.5 V
VS = ± 15 V, No Load
0.75
5
20
500
250
125
0/4
–15/13.5
± 13.5
± 10.5
4.0
500
80
90
10
80
mV max
nA max
nA max
V/mV min
V/mV min
V min
V min
V min
µV max
dB min
µV/V max
µA max
NOTES
1Guaranteed by CMR test.
Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed
for standard product dice. Consult factory to negotiate specifications based on dice lot qualifications through sample lot assembly and testing.
ABSOLUTE MAXIMUM RATINGS1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Differential Input Voltage . . . . [(V–) – 20 V] to [(V+) + 20 V]
Common-Mode Input Voltage . [(V–) – 20 V] to [(V+) + 20 V]
Output Short-Circuit Duration . . . . . . . . . . . . . . .Continuous
Storage Temperature Range
TC, Y, P Package . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Operating Temperature Range
OP490A . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C
OP490E, OP490F . . . . . . . . . . . . . . . . . . . –25°C to +85°C
OP490G . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Junction Temperature (TJ) . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering, 60 sec) . . . . . . +300°C
Package Type
JA2 JC Units
14-Pin Hermetic DIP (Y)
14-Pin Plastic DIP (P)
28-Contact LCC (TC)
16-Pin SOL (S)
99
76
78
92
12 °C/W
33 °C/W
30 °C/W
27 °C/W
ORDERING GUIDE1
Model
TA = +25؇C
VOS max
(mV)
OP490AY2
OP490ATC/883
OP490EY
OP490FY
OP490GP
OP490GS3
0.5
0.5
0.5
0.75
1.0
1.0
Operating
Temperature Package
Range
Description
MIL
MIL
IND
IND
XIND
XIND
14-Pin Cerdip
28-Contact LCC
14-Pin Cerdip
14-Pin Cerdip
14-Pin Plastic DIP
16-Pin SOL
NOTES
1Burn-in is available on commercial and industrial temperature range parts in
cerdip, plastic DIP and TO-can packages.
2For devices processed in total compliance to MIL-STD-883, add /883 after
part number. Consult factory for 883 data sheet.
3For availability and burn-in information on SO and PLCC packages, contact
your local sales office.
DICE CHARACTERISTICS
NOTES
1Absolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted.
2θJA is specified for worst case mounting conditions, i.e., θJA is specified for device
in socket for Cerdip, P-DIP, and LCC packages; θJA is specified for device soldered
to printed circuit board for SOL package.
REV. B
Die Size 0.139 × 0.121 inch, 16,819 sq. mils
(3.53 × 3.07 mm, 10.84 sq. mm)
–5–
5 Page 
OP490
Figure 4. High Output Amplifier
HIGH OUTPUT AMPLIFIER
The amplifier shown in Figure 4 is capable of driving 25 V p-p
into a 1 kΩ load. Design of the amplifier is based on a bridge
configuration. A amplifies the input signal and drives the load
with the help of B. Amplifier C is a unity-gain inverter which
drives the load with help from D. Gain of the high output am-
plifier with the component values shown is 10, but can easily be
changed by varying R1 or R2.
SINGLE-SUPPLY MICROPOWER QUAD
PROGRAMMABLE GAIN AMPLIFIER
The combination of quad OP490 and the DAC8408 quad 8-bit
CMOS DAC, creates a quad programmable-gain amplifier with
a quiescent supply drain of only 140 µA. The digital code
present at the DAC, which is easily set by a microprocessor, de-
termines the ratio between the fixed DAC feedback resistor and
the resistance of the DAC ladder presents to the op amp feed-
back loop. Gain of each amplifier is:
VOUT = – 256
VIN n
where n equals the decimal equivalent of the 8-bit digital code
present at the DAC. If the digital code present at the DAC con-
sists of all zeros, the feedback loop will be open causing the op
amp output to saturate. The 10 MΩ resistors placed in parallel
with the DAC feedback loop eliminates this problem with a very
small reduction in gain accuracy. The 2.5 V reference biases the
amplifiers to the center of the linear region providing maximum
output swing.
REV. B
–11–
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet OP490.PDF ] | |
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