5962-89670013A [ADI]
Low Voltage Micropower Quad Operational Amplifier; 低电压，微功耗四路运算放大器
| 型号： | 5962-89670013A |
| 厂家： | 
ADI |
| 描述： | Low Voltage Micropower Quad Operational Amplifier |
| 文件： | 总16页 (文件大小：1815K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Low Voltage Micropower
Quad Operational Amplifier
a
OP490
FEATURES
PIN CONNECTION
Single/Dual-Supply Operation
1.6 V to 36 V
؎0.8 V to ؎18 V
14-Lead Hermetic DIP
(Y Suffix)
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 mV/V Min
Industry Standard Quad Pinouts
Available in Die Form
OUT A
–IN A
+IN A
V+
1
2
3
4
5
6
7
14 OUT D
13 –IN D
12 +IN D
11 V–
+IN B
–IN B
OUT B
10 +IN C
9
8
–IN C
OUT C
14-Lead Plastic DIP
(P Suffix)
OUT A
–IN A
+IN A
V+
1
2
3
4
5
6
7
14 OUT D
13 –IN D
12 +IN D
11 V–
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
signals 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.
+IN B
–IN B
OUT B
10 +IN C
9
8
–IN C
OUT C
The quad OP490 draws less than 20 mA 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 mV/∞C over the military
temperature range. Gain exceeds over 700,000 and CMR is
better than 100 dB. A PSRR of under 5.6 mV/V minimizes
offset voltage changes experienced in battery-powered systems.
16-Lead SOIC
(S Suffix)
OUT A
–IN A
+IN A
V+
1
2
3
4
5
6
7
8
16 OUT D
15 –IN D
14 +IN D
13 V–
The quad OP490 combines high performance with the space
and cost savings of quad amplifiers. The minimal voltage and
current requirements of the OP490 make it ideal for battery-
and solar-powered applications, such as portable instruments
and remote sensors.
+IN B
–IN B
OUT B
NC
12 +IN C
11 –IN C
10 OUT C
9
NC
NC = NO CONNECT
REV. C
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
that 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: 781/329-4700
Fax: 781/326-8703
www.analog.com
© Analog Devices, Inc., 2002
OP490–SPECIFICATIONS
(@ V = ؎1.5 V to ؎15 V, T = 25؇C, unless otherwise noted)
ELECTRICAL CHARACTERISTICS
S
A
OP490E
Typ
OP490F
Typ
OP490G
Typ Max Unit
Parameter
Symbol
VOS
Conditions
Min
Max
0.5
Min
Max
0.75
5
Min
Input Offset
Voltage
0.2
0.4
4.2
0.4
0.4
4.2
0.6
0.4
4.2
1.0
5
mV
nA
nA
Input Offset
Current
IOS
VCM = 0 V
VCM = 0 V
3.0
Input Bias
Current
IB
15.0
20
25
Large Signal
Voltage Gain
AVO
VS = ±15 V, VO = ±10 V,
RL = 100 kW
L = 10 kW
L = 2 kW
V+ = 5 V, V– = 0 V,
1 V < VO < 4 V
700
350
125
1,200
600
250
500
250
100
1,000
500
200
400
200
100
800
400
200
V/mV
V/mV
V/mV
R
R
R
L = 100 kW
200
100
400
180
125
75
300
140
100
70
250
140
V/mV
V/mV
RL = 10 kW
Input Voltage
Range
IVR
V+ = 5 V, V– = 0 V
0/4
–15/+13.5
0/4
–15/+13.5
0/4
–15/+13.5
V
V
VS = ±15 V1
Output Voltage
Swing
VO
VS = ±15 V, RL = 10 kW
RL = 2 kW
±13.5
±10.5
±14.2
±11.5
±13.5
±10.5
±14.2
±11.5
±13.5
±10.5
±14.2
±11.5
V
V
VOH
VOL
V+ = 5 V, V– = 0 V,
RL = 2 kW
V+ = 5 V, V– = 0 V,
RL = 10 kW
4.0
4.2
4.0
4.2
4.0
4.2
V
100
110
500
5.6
100
100
500
100
100
500
mV
Common-Mode
Rejection Ratio
CMRR
V+ = 5 V, V– = 0 V,
0 V < VCM < 4 V
VS = ±15 V,
90
80
90
800
90
dB
100
130
120
120
dB
–15 V < VCM < +13.5 V
Power Supply
Rejection Ratio
PSRR
SR
1.0
12
3.2
12
10
3.2
12
10
mV/V
Slew Rate
VS = ±15 V
5
5
5
V/ms
Supply Current
(All Amplifiers)
VS = ±1.5 V, No Load
VS = ±15 V, No Load
40
60
60
80
40
60
60
80
40
60
60
80
mA
mA
ISY
Capacitive Load
Stability
A
V = 1
650
650
650
pF
Input Noise
Voltage
en p-p
fO = 0.1 Hz to 10 Hz,
VS = ±15 V
3
3
3
mV p-p
MW
Input Resistance
Differential Mode
RIN
VS = ±15 V
VS = ±15 V
AV = 1
30
20
30
20
30
20
Input Resistance
Common-Mode
RINCM
GW
Gain Bandwidth
Product
GBWP
20
20
20
kHz
dB
Channel Separation CS
fO = 10 Hz, VO = 20 V p-p
VS = ±15 V2
120
150
120
150
120
150
NOTES
1Guaranteed by CMRR test.
2Guaranteed but not 100% tested.
Specifications subject to change without notice
–2–
REV. C
OP490
(@ VS = ؎1.5 V to ؎15 V, –25؇C £ TA £ +85؇C for OP490E/F, –40؇C £ TA £ +125؇C for
ELECTRICAL CHARACTERISTICS
OP490G, unless otherwise noted)
OP490E
OP490F
Typ
OP490G
Typ Max Unit
Parameter
Symbol
Conditions
Min
Typ
0.32
2
Max
0.8
5
Min
Max
Min
Input Offset
Voltage
VOS
0.6
4
1.35
0.8
4
1.5
mV
mV/∞C
nA
Average Input
Offset Voltage Drift TCVOS
VS = ±15 V
Input Offset
Current
IOS
VCM = 0 V
0.8
4.4
3
1.0
4.4
5
1.3
4.4
7
Input Bias
Current
IB
VCM = 0 V
15
20
25
nA
Large Signal
Voltage Gain
AVO
VS = ±15 V, VO = ±10 V,
R
R
L = 100 kW
L = 10 kW
RL = 2 kW
500
250
100
800
400
200
350
175
75
700
250
150
300
150
75
600
250
125
V/mV
V/mV
V/mV
V+ = 5 V, V– = 0 V,
1 V < VO < 4 V
RL = 100 kW
150
75
280
140
100
50
220
110
80
40
160
90
V/mV
V/mV
RL = 10 kW
Input Voltage
Range
IVR
V+ = 5 V, V– = 0 V
0.3/5
–15/+13.5
0.3/5
–15/+13.5
0.3/5
–15/+13.5
V
V
VS = ±15 V
*
Output Voltage
Swing
VO
VS = ±15 V, RL = 10 kW
RL = 2 kW
±13
±10
±14
±11
±13
±10
±14
±11
±13
±10
±14
±11
V
V
VOH
VOL
V+ = 5 V, V– = 0 V,
RL = 2 kW
V+ = 5 V, V– = 0 V,
RL = 10 kW
3.9
4.1
3.9
4.1
3.9
4.1
V
100
110
500
5.6
100
100
500
100
100
500
mV
Common-Mode
Rejection Ratio
CMRR
V+ = 5 V, V– = 0 V,
0 V < VCM < 3.5 V
VS = ±15 V,
90
80
90
800
90
dB
100
120
110
110
dB
–15 V < VCM < +13.5 V
Power Supply
Rejection Ratio
PSRR
ISY
1.0
3.2
10
5.6
17.8 mV/V
Supply Current
(All Amplifiers)
VS = ±1.5 V, No Load
VS = ±15 V, No Load
65
80
100
120
65
80
100
120
60
75
100
120
mA
mA
NOTE
*Guaranteed by CMRR test.
Specifications subject to change without notice
–3–
REV. C
OP490
(@ V = ؎1.5 V to ؎15 V, T = 25؇C, unless otherwise noted)
WAFER TEST LIMITS
Parameter
S
A
Symbol
Conditions
Limits
Unit
Input Offset Voltage
Input Offset Current
Input Bias Current
VOS
IOS
IB
0.75
5
20
mV max
nA max
nA max
VCM = 0 V
VCM = 0 V
Large Signal Voltage Gain
AVO
VS = ±15 V, VO = ±10 V,
RL = 100 kW
500
250
125
V/mV min
V/mV min
V/mV min
RL = 10 kW
V+ = 5 V, V– = 0 V
1 V < VO < 4 V, RL = 100 kW
V+ = 5 V, V– = 0 V
VS = ±15 V*
Input Voltage Range
Output Voltage Swing
IVR
VO
0/4
–15/+13.5
V min
V min
VS = ±15 V
RL = 10 kW
±13.5
±10.5
4.0
V min
V min
V min
mV max
RL = 2 kW
VOH
VOL
V+ = 5 V, V– = 0 V, RL = 2 kW
V+ = 5 V, V– = 0 V, RL = 10 kW
500
Common-Mode Rejection Ratio
CMRR
V+ = 5 V, V– = 0 V, 0 V < VCM < 4 V
VS = ±15 V, –15 V < VCM < +13.5 V
80
90
dB min
dB min
Power Supply Rejection Ratio
Supply Current (All Amplifiers)
PSRR
ISY
10
80
mV/V max
mA max
VS = ±15 V, No Load
NOTE
*Guaranteed by CMRR 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.
V+
+IN
OUTPUT
–IN
V–
Figure 1. Simplified Schematic
–4–
REV. C
OP490
ABSOLUTE MAXIMUM RATINGS*
Package Type
*
Unit
JA
JC
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Digital 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
Y and P Packages . . . . . . . . . . . . . . . . . . . –65∞C to +150∞C
Operating Temperature Range
14-Pin Hermetic DIP (Y)
14-Pin Plastic DIP (P)
16-Pin SOL (S)
99
76
92
12
33
27
∞C/W
∞C/W
∞C/W
*qJA is specified for worst case mounting conditions, i.e., qJA is specified for
device in socket for CERDIP and PDIP packages; qJA is specified for device
soldered to printed circuit board for SOL package
OP490E, OP490F . . . . . . . . . . . . . . . . . . . –25∞C to +85∞C
OP490G . . . . . . . . . . . . . . . . . . . . . . . . . . . –40∞C to +85∞C
Junction Temperature (TJ) . . . . . . . . . . . . . –65∞C to +150∞C
ORDERING GUIDE
Temperature
Range
Package
Description
Package
Option
Lead Temperature Range (Soldering, 60 sec) . . . . . . . . 300∞C
Model
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
OP490EY* –25∞C to +85∞C 14-Lead CERDIP
OP490FY* –25∞C to +85∞C 14-Lead CERDIP
Y-14
Y-14
OP490GP –40∞C to +85∞C 14-Lead Plastic DIP P-14
OP490GS
–40∞C to +85∞C 16-Lead SOIC
S-14
*Not recommended for new designs. Obsolete April 2002.
For Military processed devices, please refer to the Standard
Microcircuit Drawing (SMD) available at
www.dscc.dla.mil/programs/milspec/default.asp
SMD Part Number
ADI Equivalent
5962-89670013A*
5962-8967001CA*
OP490ATCMDA
OP490AYMDA
*Not recommended for new designs. Obsolete April 2002.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the OP490 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. C
–5–
OP490–Typical Performance Characteristics
0.4
90
80
70
60
50
40
30
V
S
= 15V
0.3
0.2
0.1
0
V
V
=
=
15V
S
1.5V
S
–75
–50
–25
0
25
50
75
125
–75
–50
–25
0
25
50
75
125
TEMPERATURE – ؇C
TEMPERATURE – ؇C
TPC 1. Input Offset Voltage vs. Temperature
TPC 4. Total Supply Current vs. Temperature
1.6
600
T
= 25؇C
= 10k⍀
A
L
V
S
= 15V
R
1.4
1.2
1.0
0.8
0.6
0.4
0.2
500
400
300
200
100
0
25؇C
85؇C
125؇C
0
5
10
15
20
25
30
–75
–50
–25
0
25
50
75
125
SINGLE-SUPPLYVOLTAGE –V
TEMPERATURE – ؇C
TPC 5. Open-Loop Gain vs. Single-Supply Voltage
TPC 2. Input Offset Current vs. Temperature
140
4.8
V
= 15V
S
A
L
V
S
= 15V
T
= 25؇C
120
100
80
60
40
20
0
4.6
4.4
4.2
4.0
3.8
3.6
R
= 10k⍀
0
GAIN
45
90
135
180
0.1
1
10
100
1k
10k
100k
–75
–50
–25
0
25
50
75
125
FREQUENCY – Hz
TEMPERATURE – ؇C
TPC 6. Open-Loop Gain and Phase Shift vs. Frequency
TPC 3. Input Bias Current vs. Temperature
–6–
REV. C
OP490
60
40
20
0
120
100
80
V
=
15V
S
A
T
A
= 25؇C
T
= 25؇C
NEGATIVE SUPPLY
POSITIVE SUPPLY
60
40
–20
20
10
100
1k
10k
100k
1
10
100
1k
FREQUENCY – Hz
LOAD RESISTANCE –⍀
TPC 7. Closed-Loop Gain vs. Frequency
TPC 10. Power Supply Rejection vs. Frequency
6
140
V+ = 5V, V– = 0V
= 25؇C
V
=
15V
S
A
T
A
T
= 25؇C
5
4
3
2
1
0
120
100
80
60
40
100
1k
10k
100k
0.1
1
10
100
1k
LOAD RESISTANCE –⍀
FREQUENCY – Hz
TPC 8. Output Voltage Swing vs. Load Resistance
TPC 11. Common-Mode Rejection vs. Frequency
16
1k
V
T
=
15V
V
T
=
15
POSITIVE
S
A
S
A
= 25؇C
= 25؇C
14
12
10
8
NEGATIVE
100
6
10
1
4
2
0
100
1k
10k
100k
0.1
1
10
100
1k
FREQUENCY – Hz
LOAD RESISTANCE –⍀
TPC 12. Noise Voltage Density vs. Frequency
TPC 9. Output Voltage Swing vs. Load Resistance
–7–
REV. C
OP490
0
0
0
0
0
0
0
0
0
100
V
=
15V
S
A
V
T
= 15V
S
A
T
= 25؇C
= 25؇C
= 1
A
V
L
L
R
C
= 10k⍀
= 500pF
10
1
0.1
0.1
1
10
100
1k
0
0
0
0
0
0
0
0
0
0
0
FREQUENCY – Hz
TIME – 1ms/DIV
TPC 13. Current Noise Density vs. Frequency
TPC 15. Large-Signal Transient Response
0
V
= 15V
S
A
V
L
L
0
0
0
0
0
0
0
0
T
= 25؇C
= 1
A
R
C
= 10k⍀
= 500pF
0
0
0
0
0
0
0
0
0
0
0
TIME – 100s/DIV
TPC 14. Small-Signal Transient Response
–8–
REV. C
OP490
–18V
APPLICATIONS INFORMATION
Battery-Powered Applications
The OP490 can be operated on a minimum supply voltage of
1.6 V, or with dual supplies of ±0.8 V, and draws only 60 mA of
supply current. In many battery-powered circuits, the OP490
can be continuously operated for hundreds of hours before
requiring battery replacement, reducing equipment downtime,
and operating costs.
14
13
12
11
9
6
8
7
10
D
C
B
High performance portable equipment and instruments fre-
quently use lithium cells because of their long shelf-life, light
weight, and high energy density relative to older primary cells.
Most lithium cells have a nominal output voltage of 3 V and are
noted for a flat discharge characteristic. The low supply current
A
2
3
4
1
5
4
3
2
1
0
GND
+18V
Figure 2. Burn-In Circuit
+15V
+15V
1/4
OP490A
OP37A
V2
1k⍀
0
250
500
750
1000
1500
1750
HOURS
100⍀
10k⍀
–15V
Figure 4. Lithium-Sulphur Dioxide Cell Discharge Charac-
teristic with OP490 and 100 kW Loads
–15V
requirement of the OP490, combined with the flat discharge
characteristic of the lithium cell, indicates that the OP490 can
be operated over the entire useful life of the cell. Figure 4 shows
the typical discharge characteristic of a 1 Ah lithium cell power-
ing an OP490 with each amplifier, in turn, driving full output
swing into a 100 kW load.
1/4
V
IN
OP490B
V1
20V p-p @ 10Hz
V1
V2/1000
Single-Supply Output Voltage Range
CHANNEL SEPARATION = 20 LOG
1/4
In single-supply operation the OP490’s input and output ranges
include ground. This allows true “zero-in, zero-out” operation.
The output stage provides an active pull-down to around 0.8 V
above ground. Below this level, a load resistance of up to 1 MW
to ground is required to pull the output down to zero.
OP490C
In the region from ground to 0.8 V, the OP490 has voltage gain
equal to the data sheet specification. Output current source
capability is maintained over the entire voltage range including
ground.
1/4
OP490D
Input Voltage Protection
The OP490 uses a PNP input stage with protection resistors in
series with the inverting and noninverting inputs. The high
breakdown of the PNP transistors coupled with the protection
resistors provides a large amount of input protection, allowing
the inputs to be taken 20 V beyond either supply without dam-
aging the amplifier.
Figure 3. Channel Separation Test Circuit
REV. C
–9–
OP490
Micropower Voltage-Controlled Oscillator
output of A is a triangle wave with upper and lower levels of
3.33 V and 1.67 V. The output of B is a square wave with almost
rail-to-rail swing. With the components shown, frequency of
operation is given by the equation:
An OP490 in combination with an inexpensive quad CMOS
switch comprise the precision VCO of Figure 5. This circuit
provides triangle and square wave outputs and draws only 75 mA
from a 5 V supply. A acts as an integrator; S1 switches the
charging current symmetrically to yield positive and negative
ramps. The integrator is bounded by B which acts as a Schmitt
trigger with a precise hysteresis of 1.67 V, set by resistors R5,
R6, and R7, and associated CMOS switches. The resulting
fOUT =VCONTROL Volts ¥10 Hz /V
(
)
but this is easily changed by varying C1. The circuit operates
well up to a few hundred hertz.
C1
75nF
+5V
+5V
R1
R5
200k⍀
2
3
200k⍀
4
1
6
VCONTROL
7
SQUARE
OUT
1/4
11
5
R2
OP490E
A
200k⍀
1/4
R4
OP490E
B
200k⍀
TRIANGLE
OUT
R3
100k⍀
+5V
R8
200k⍀
+5V
IN/OUT
OUT/IN
R6
R7
VDD
200k⍀
200k⍀
14
1
2
S1
S2
CONT
CONT
13
OUT/IN
IN/OUT
CONT
3
4
12
11
IN/OUT
OUT/IN
OUT/IN
S3
S4
5
6
7
10
9
+5V
CONT
VSS
IN/OUT
8
Figure 5. Micropower Voltage Controlled Oscillator
–10–
REV. C
OP490
Micropower Single-Supply Quad Voltage-Output 8-Bit DAC
The circuit of Figure 6 uses the DAC8408 CMOS quad 8-bit
DAC, and the OP490 to form a single-supply quad voltage-output
DAC with a supply drain of only 140 mA. The DAC8408 is used
in voltage switching mode and each DAC has an output resistance
(ª10 kW) independent of the digital input code. The output
amplifiers act as buffers to avoid loading the DACs. The 100 kW
resistors ensure that the OP490 outputs will swing below 0.8 V
when required.
+5V
4
2
1
REFERENCE
VOLTAGE
1.5V
4
I
OUT1A
V
A
OUT
DAC A
1/4
V
A
2
2
REF
1/4
OP490E
A
R1
DAC8408
100k⍀
11
I
5
6
OUT2A/2B
6
5
7
V
B
OUT
DAC B
1/4
V
B
8
REF
1/4
I
OUT1B
OP490E
B
R2
DAC8408
100k⍀
13
12
14
25
I
OUT1C
V
C
OUT
DAC C
1/4
V
C
27
REF
1/4
R3
OP490E
C
DAC8408
100k⍀
24
23
I
OUT2C/2D
9
8
V
D
OUT
21
DAC D
V
D
21
10
REF
1/4
1/4
I
OUT1D
R4
OP490E
D
DAC8408
100k⍀
OP490EY
DAC DATA BUS
PIN9(LSB) – 16(MSB)
17
A/B
R/W
DS1
DS2
18
19
20
DAC8408ET
DIGITAL
CONTROL
SIGNALS
DGND
28
Figure 6. Micropower Single-Supply Quad Voltage Output 8-Bit DAC
–11–
REV. C
OP490
R5
5k⍀
R2
R6
+15V
4
9k⍀
5k⍀
1/4
R1
OP490E
1k⍀
2
3
9
R3
R7
B
50⍀
50⍀
1
8
V
IN
10
11
1/4
OP490E
C
1/4
–15V
OP490E
6
5
13
R4
R8
B
50⍀
R
L
50⍀
7
14
12
1/4
OP490E
D
Figure 7. High Output Amplifier
High Output Amplifier
where n equals the decimal equivalent of the 8-bit digital code
present at the DAC. If the digital code present at the DAC
consists of all zeros, the feedback loop will be open causing the
op amp output to saturate. The 10 MW resistors placed in paral-
lel 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.
The amplifier shown in Figure 7 is capable of driving 25 V p-p
into a 1 kW 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 amplifier
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 mA. The digital code present
at the DAC, which is easily set by a microprocessor, determines
the ratio between the fixed DAC feedback resistor and the resis-
tance of the DAC ladder presents to the op amp feedback loop.
Gain of each amplifier is:
VOUT
VIN
256
n
= -
–12–
REV. C
OP490
+5V
1
V
DD
R
A
3
4
FB
V A
IN
V
A
REF
2
4
C1
0.1F
R1
10M⍀
I
OUT1A
2
3
DAC A
1/4
1
V
A
OUT
DAC8408
1/4
OP490E
A
11
I
5
8
OUT2A/2B
7
R
B
FB
V B
IN
V
B
REF
C2
0.1F
R2
DAC B
1/4
10M⍀
I
6
6
5
OUT1B
DAC8408
7
V
B
OUT
1/4
OP490E
B
25
R
C
FB
V C
IN
V
C
27
25
REF
C3
0.1F
R3
10M⍀
I
9
OUT1C
DAC C
1/4
8
V
C
OUT
10
DAC8408
1/4
OP490E
C
I
24
21
OUT2C/2D
22
R
D
FB
V D
IN
V
D
REF
C4
0.1F
R4
DAC D
1/4
10M⍀
I
23
13
12
OUT1D
DAC8408
14
V
D
OUT
1/4
DAC DATA BUS
OP490E
D
PIN9(LSB) – 16(MSB)
17
18
19
20
A/B
R/W
DS1
DS2
OP490EY
DAC8408ET
+2.5V
DIGITAL
REFERENCE
VOLTAGE
CONTROL
SIGNALS
DGND
28
Figure 8. Single-Supply Micropower Quad Programmable Gain Amplifier
REV. C
–13–
OP490
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
14-Lead Plastic DIP
(P Suffix)
14-Lead Hermetic DIP
(Y Suffix)
0.005 (0.13) MIN 0.098 (2.49) MAX
0.795 (20.19)
0.725 (18.42)
14
8
7
0.310 (7.87)
0.220 (5.59)
14
8
7
0.280 (7.11)
0.240 (6.10)
PIN 1
1
1
0.320 (8.13)
0.290 (7.37)
0.325 (8.25)
0.300 (7.62)
PIN 1
0.100 (2.54) BSC
0.785 (19.94) MAX
0.100 (2.54)
BSC
0.060 (1.52)
0.015 (0.38)
0.060 (1.52)
0.015 (0.38)
0.195 (4.95)
0.115 (2.93)
0.210 (5.33)
0.200 (5.08)
MAX
MAX
0.130
(3.30)
MIN
0.150
(3.81)
MIN
0.160 (4.06)
0.115 (2.93)
0.200 (5.08)
0.125 (3.18)
0.015 (0.381)
0.008 (0.204)
0.015 (0.38)
SEATING
SEATING
0.023 (0.58)
0.070 (1.78)
0.030 (0.76)
0.070 (1.77)
0.045 (1.15)
0.022 (0.558)
0.014 (0.356)
15
0
0.008 (0.20)
PLANE
PLANE
0.014 (0.36)
16-Lead SOIC
(S Suffix)
0.4133 (10.50)
0.3977 (10.00)
16
9
0.2992 (7.60)
0.2914 (7.40)
0.4193 (10.65)
0.3937 (10.00)
1
8
PIN 1
0.1043 (2.65)
0.0926 (2.35)
0.0291 (0.74)
0.0098 (0.25)
0.050 (1.27)
BSC
؋
45؇ 8؇
0؇
0.0192 (0.49)
0.0138 (0.35)
0.0118 (0.30)
0.0040 (0.10)
SEATING
0.0500 (1.27)
0.0157 (0.40)
0.0125 (0.32)
0.0091 (0.23)
PLANE
Revision History
Location
Page
Data Sheet changed from REV. B to REV. C.
Deleted 28-Pin LCC (TC-Suffix) PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Deleted ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Edits to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
–14–
REV. C
–15–
–16–
相关型号：
5962-8967301CA
Operational Amplifier, 1 Func, 25000uV Offset-Max, BIPolar, CDIP14, CERAMIC, DIP-14
WEDC
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