OP400
Quad Low-Offset, Low-Power
Operational Amplifier
v+
BIAS
OUT
VOL TAGE
LIMITING
NETWORK
+IN
-IN
v-
Logic Diagram
F
EATURES
:
• R
AD
-P
AK
® technology-hardened against natural space
• radiation
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Package:
- 16 pin Rad-Pak® flat package
• Low input offset voltage 150µ V max
• Low offset voltage drift
- +1.2µ V/°C max (over -55 to +125°C)
• Low supply current (per amplifier) 725 µ A max
• High open-loop gain 5000V/mV min
• Input bias current 3 nA Max
• Low noise voltage density 11 nV per (Hz)
½
at 1 kHz
• Stable with large capacitive loads 10 nF typ
D
ESCRIPTION
:
Maxwell Technologies’ OP400 monolithic quad operational
amplifier microcircuit features a greater than 100 krad (Si) typ-
ical total dose tolerance, depending upon space mission.
Using Maxwell’s radiation-hardened R
AD
-P
AK
® packaging
technology, the OP400 has an extremely low input offset volt-
age no less than 150 mV with a drift of under 1.2 mV/°C, guar-
anteed over the full military temperature range. The OP400
features low power consumption, drawing less than 725 µ A
per amplifier.
Maxwell Technologies' patented R
AD
-P
AK
packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. It eliminates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or space
mission. In a GEO orbit, R
AD
-P
AK
provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
Memory
09.12.02 REV 5
All data sheets are subject to change without notice
1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
©2001 Maxwell Technologies
All rights reserved.
Quad Low-Offset, Low-Power Operational Amplifier
T
ABLE
1. P
INOUT
D
ESCRIPTION
P
IN
1, 7, 10, 16
2, 6, 11, 15
3, 5, 12, 14
8, 9
4
13
S
YMBOL
OUT A - D
-IN A - D
+IN A - D
NC
V+
V-
D
ESCRIPTION
Output Signal
Negative Input Signal
Positive Input Signal
Not Connected
Positive Voltage
Negative Voltage
OP400
T
ABLE
2. OP400 A
BSOLUTE
M
AXIMUM
R
ATINGS
P
ARAMETER
Supply Voltage
Differential Input Voltage
Input Voltage
Output Short-Circuit Duration
Storage Temperature Range
Operating Temperature Range
T
S
T
A
-65
-55
150
125
S
YMBOL
V
CC
M
IN
M
AX
±20
±30
U
NIT
V
V
Supply Voltage
Continuous
°C
°C
Memory
T
ABLE
3. D
ELTA
L
IMITS
P
ARAMETER
ICC
V
ARIATION
±10% of specified value in Table 4
T
ABLE
4. OP400 DC E
LECTRICAL
C
HARACTERISTICS
(V
S
= ±15V, T
A
= -55
TO
125°C,
UNLESS OTHERWISE SPECIFIED
)
P
ARAMETER
Input Offset Voltage
Long Term Input Voltage Stability
Input Offset Current
Input Bias Current
S
YMBOL
V
OS
---
I
OS
I
B
V
CM
= 0V
V
CM
= 0V
+25°C
-55 to 125°C
+25°C
-55 to 125°C
T
EST
C
ONDITIONS
+25°C
-55 to 125°C
S
UBGROUPS
1
2, 3
1, 2, 3
1
2, 3
1
2, 3
---
M
IN
---
--
---
---
T
YP
40
70
0.1
0.1
0.1
0.75
1.30
M
AX
150
270
---
1.0
2.5
3.0
5.0
nA
µ V/mo
nA
U
NITS
µV
09.12.02 REV 5
All data sheets are subject to change without notice
2
©2001 Maxwell Technologies
All rights reserved.
Quad Low-Offset, Low-Power Operational Amplifier
T
ABLE
4. OP400 DC E
LECTRICAL
C
HARACTERISTICS
(V
S
= ±15V, T
A
= -55
TO
125°C,
UNLESS OTHERWISE SPECIFIED
)
P
ARAMETER
Input Resistance Differential
Mode
S
YMBOL
R
IN
T
EST
C
ONDITIONS
+25°C
+25E = Engi-
neering (test-
ing @ +25°C)
S
UBGROUPS
1
M
IN
---
T
YP
10
OP400
M
AX
---
U
NITS
M
Ω
Input Resistance Common Mode
Large Signal Voltage Gain
R
INCM
A
VO
V
O
= ±10V
RL = 10
k
Ω
R
L
= 2 k
Ω
+25°C
-55 to 125°C
+25°C
-55 to 125°C
+25°C
-55 to 125°C
+25°C
-55 to 125°C
+25°C
-55 to 125°C
1, 2, 3
1
2, 3
1
2, 3
1
2, 3
4
5, 6
1
2, 31
1, 2, 3
1, 2, 3
+25°C
-55 to 125°C
+25°C
AV = +1
No Oscilla-
tions
+25°C
1
2, 3
1
1
---
5000
3000
2000
1000
±12
±12
120
115
---
--
±12
±11
---
--
---
---
200
12000
9000
3500
2300
±13
±12.5
140
130
0.1
0.2
±12.6
±12.4
600
600
3.2
10
---
---
--
---
--
---
--
---
--
1.8
3.2
---
---
725
775
---
---
G
Ω
V/mV
Input Voltage Range
1
Common Mode Rejection
Power Supply Rejection Ratio
Output Voltage Swing
IVR
CMR
PSRR
V
O
3/
V
CM
=
±12V
V
S
= ±3V
to ±18V
R
L
= 10
k
Ω
R
L
= 2 k
Ω
No Load
V
dB
µ V/V
V
Memory
Supply Current Per Amplifier
Input Capacitance
Capacitive Load Stability
I
SV
C
IN
µA
pF
nF
1. Guaranteed by CMR test.
T
ABLE
5. OP400 AC Electrical Characteristics
(VS = ±15V, T
A
= -55
TO
125°C,
UNLESS OTHERWISE SPECIFIED
.)
P
ARAMETER
Input Noise Voltage
Input Noise Voltage
Density
Input Noise Current
Input Noise Current
Density
Slew Rate
Gain Bandwidth Product
S
YMBOL
e
n p-p
e
n
i
n p-p
i
n
SR
GBWP A
V
= +1
Test Conditions
0.1 Hz to 10 Hz
f
O
= 10 Hz
f
O
= 1 KHz
0.1 Hz to 10 Hz
f
O
= 10 Hz
+25°C
+25°C
+25°C
+25°C
+25°C
-55 to 125°C
-55 to 125°C
S
UBGROUP
1
1
1
1
1
1, 2, 3
1, 2, 3
M
IN
---
---
---
---
---
0.1
---
T
YP
0.5
22
11
15
0.6
0.15
500
M
AX
---
--
--
---
---
---
---
nV
√
Hz
V/µ s
kHz
pA
P-P
U
NIT
nV
√
Hz
µ V
P-P
09.12.02 REV 5
All data sheets are subject to change without notice
3
©2001 Maxwell Technologies
All rights reserved.
Quad Low-Offset, Low-Power Operational Amplifier
T
ABLE
5. OP400 AC Electrical Characteristics
(VS = ±15V, T
A
= -55
TO
125°C,
UNLESS OTHERWISE SPECIFIED
.)
P
ARAMETER
Channel Separation
1. Guaranteed by design.
S
YMBOL
CS
Test Conditions
V
O
= 20 V
p-p
f
O
= 10 Hz
1
+25°C
S
UBGROUP
4
M
IN
123
T
YP
135
OP400
M
AX
---
U
NIT
dB
Memory
09.12.02 REV 5
All data sheets are subject to change without notice
4
©2001 Maxwell Technologies
All rights reserved.