Maxwell OP284 Operation Manual
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OP284
Operational Amplifiers
V
R4 QB6 QB5
RB1
R3
RB3
RB4
CC
R11
Flat Pack
TP
JB1
N+
CB1
P+
M
QB1
Q1 Q3
-IN +IN OUT
QB2
JB2
R1 R2
Leadless Chip Carrier (LCC)
FEATURES:
•RAD-PAK® radiation-hardened against natural space radia-
tion
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Package:
- 8-pin R
- 16-pin R
• Single-Supply Operation
• Wide Bandwidth: 4 MHz
• Low Offset Voltage: 65uV
• Unity-Gain Stable
• High Slew Rate: 4.0 V/ms
• Low Noise: 3.9 nV/(Hz)
AD-PAK® flat pack
AD-PAK® Leadless Chip Carrier (LCC) pack
½
Q11
Q12
Q7
Q4 Q2
QL1
QL2
QB3
RB2
Q5
QB4
CC1
Q8
Q9
Q6
R5
QB9
Q10
CFF
R6
R7
QB7
QB8
Q16 Q17
QB10
CC2
Q13 Q14R9Q15
R8
Logic Diagram
DESCRIPTION:
Maxwell Technologies’ OP284 is a dual single-supply, 4
MHz bandwidth amplifier featuring rail-to-rail inputs and outputs and a greater than 100 krad (Si) total dose tolerance,
depending upon space mission. Using
gies
’ radiation-hardened RAD-PAK® technology, it is guaranteed to operate from +3 to +36 (or ± 1.5 to ±18) volts and will
function with a single supply as low as +1.5 volts.
This amplifier is superb for single supply applications requiring
both ac and precision dc performance. The combination of
bandwidth, low noise and precision makes the OP284 useful
in a wide variety of applications, including filters and instrumentation. Other applications for this amplifier include portable telecom equipment, power supply control and protection,
and as an amplifier or buffer for transducers with wide output
ranges.
Maxwell Technolo-
CO
Q18
R10
V
EE
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
The ability to swing rail-to-rail at both the input and output
enables designers to build multi-stage filters in single-supply
systems and to maintain high signal-to-noise ratios.
Maxwell Technologies' patented R
ogy incorporates radiation shielding in the microcircuit package. 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
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
07.25.03 Rev 3
AD-PAK® packaging technol-
AD-PAK® provides greater than 100
All data sheets are subject to change without notice
©2003 Maxwell Techno logies
All rights reserved.
1
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Operational Amplifiers
TABLE 1. FLAT PACK PINOUT DESCRIPTION
PIN SYMBOL DESCRIPTION
1, 7 OUT A, B Outputs
2, 6 -IN A, B Negative Inputs
3, 5 +IN A, B Positive Inputs
4 V- Ground
8 V+ Supply Voltage
TABLE 2. LEADLESS CHIP CARRIER (LCC) PINOUT DESCRIPTION
PIN SYMBOL DESCRIPTION
1, 13 OUT A, B Outputs
3, 11 -IN A, B Negative Inputs
5, 9 +IN A, B Positive Inputs
7 V- Ground
15 V+ Supply Voltage
OP284
TABLE 3. OP284 ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL MIN MAX UNIT
Supply Voltage V
Input Voltage V
Differential Input Voltage
Output Short-Circuit Duration to GND Indefinite
Storage Temperature Range T
Operating Temperature Range T
Junction Temperature Range T
Thermal Impedance
1. For input voltages greater than 0.6 volts, the input current should be limited to less 5 mA to prevent degradation or destruction of
the input devices.
1
V
Θ
CC
I
DIF
S
A
J
JC
-- ±18
-- ±18 V
-- ±0.6 V
-65 +150 °C
-40 +125 °C
-65 +150 °C
-- 6.48 ° C/W
V
TABLE 4. DELTA LIMITS
PARAMETER VARIATION
I
CC
±10% of specified value in Table 5
07.25.03 Rev 3
All data sheets are subject to change without notice
©2003 Maxwell Techno logies
All rights reserved.
2
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Operational Amplifiers
TABLE 5. OP284 ELECTRICAL CHARACTERISTICS
(V+ = 15V, V- = -15V, V
P
ARAMETER SYMBOL TEST CONDITIONS SUBGROUPS MIN TYP MAX UNIT
= 0V, RS = 50Ω, RL = 100KΩ, VCM = 0V, TA = -40°C TO +125°C UNLESS OTHERWISE SPECIFIED.)
OUT
OP284
Input offset voltage V
Average offset voltage drift
Offset voltage match
1
Input bias current I
Input offset current I
Input bias current drift
1
Input voltage range I
Common mode rejection
IO
1
VIOTC RL=2kΩ 1, 2, 3 -- -- 2 µV/°C
∆V
IO|VIO
B
OS
I
IBTCRS
VR
CMRR V
ratio
Output current +I
Quiescent power supply
O
-I
O
+I
CCIOUT
current/amplifier
-I
CCIOUT
Power supply rejection ratio +PSRR V
-PSRR V
Low frequency, peak-topeak noise
1
Input noise voltage density
Input noise current density
Power consumption
1,2
Large signal voltage gain +A
E
np-p
1
EnRS=20Ω, fO=1kHz, RL=2kΩ,
1
I
n
PC+10V, I
VOL
-A
VOL
+25° C 1 -100 -- 100 µV
-40 to +125° C 2, 3 -200 -- 200
(max) - VIO (min)|, +25°C 1 - -- 100 µV
|V
(max) - VIO (min)|, -40 to +125°C 2, 3 - -- 200
IO
RS = 50Ω, +25°C 1 -350 -- 350 nA
R
= 50Ω, -40 to +125°C 2, 3 -575 -- 575 nA
S
RS =50Ω, +25°C 1 -35 -- 35 nA
= 50Ω, -40 to +125°C 2, 3 -50 -- 50 nA
R
S
= 50Ω 1, 2, 3 -- 200 pA/°C
1, 2, 3 -15 -- 15 V
= -14V to +14V 1, 2, 3 86 -- -- dB
CM
V
= -15V to +15V, TA=25°C 1 80 -- -- dB
CM
V
= -10V, 1ms pulse, TA=25°C 1 10 -- -- mA
OUT
V
= -10V, 1ms pulse 2, 3 5 -- --
OUT
V
= +10V, 1ms pulse, TA=25°C 1 -- -10 mA
OUT
= -10V, 1ms pulse 2, 3 -- -5
V
OUT
= 0mA VS=±18V, TA=25°C 1 -- -- 1.80 mA
I
= 0mA VS=±18V 2, 3 -- -- 2.25
OUT
= 0mA VS=±18V, TA=25° C 1 -1.80 -- -- mA
I
= 0mA VS=±18V 2, 3 2.25 -- --
OUT
=±2V to ±18V 1, 2, 3 90 -- -- dB
S
=±2V to ±18V 1, 2, 3 90 -- -- dB
S
0.1Hz to 10Hz, RL=2kΩ,
C
=50pF, TA=+25° C
L
1--0.30--µV
p-p
1--3.9--nV/
C
=50pF, TA=+25° C
L
RS=20MΩ, fO=1kHz, RL=2kΩ,
C
=50pF, TA=+25° C
L
=0mA, RL=2kΩ 1, 2, 3 -- 81 mW
OUT
1--0.4--pA/
(Hz)
(Hz)
+10V, RL=2.0kΩ,TA=25° C 1 -- 150 V/mV
+10V, R
=2.0kΩ 2, 3 75
L
-10V, RL=2.0kΩ,TA=25° C 1 -- 150 V/mV
-10V, R
=2.0kΩ 2, 3 75
L
½
½
07.25.03 Rev 3
All data sheets are subject to change without notice
©2003 Maxwell Techno logies
All rights reserved.
3
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Operational Amplifiers
TABLE 5. OP284 ELECTRICAL CHARACTERISTICS
(V+ = 15V, V- = -15V, V
P
ARAMETER SYMBOL TEST CONDITIONS SUBGROUPS MIN TYP MAX UNIT
= 0V, RS = 50Ω, RL = 100KΩ, VCM = 0V, TA = -40°C TO +125°C UNLESS OTHERWISE SPECIFIED.)
OUT
OP284
Output voltage swing +V
-V
1
Gain bandwidth product
Full power bandwidth
Settling time t
Phase margin F
Slew rate +SR C
1. Guaranteed by design.
2. Power consumption is based upon quiescent supply current maximum test limit. No load on outputs.
3. Full power bandwidth is based on slew rate measurement using FBBW = slew rate/(2
1,3
GBWP VO=200mV, RL=2.0kΩ,
FPBW V
-SR C
=1.0mA 1, 2, 3 14.8 -- -- V
OUT1IL
=1.0mA 1, 2, 3 -- -- -14.8 V
OUT1IL
1--4.25--MHz
C
=50pF, TA=+25° C
L
=29vp-p, RL=2.0kΩ,
PEAK
C
=50pF, TA=+25°C, 1% distortion
L
AV=+1.0, CL=50pF, RL=2.0kΩ
S
To 0.01%, 10V step
AV=1.0, CL=50pF,
O
R
=2.0kΩ, TA=+25° C
L
=50pF, RL=2.0kΩ 1, 2, 3 -- -- 2.4 V/µs
L
=50pF, RL=2.0kΩ 1, 2, 3 -- -- 2.4 V/µs
L
1--35--kHz
1, 2, 3 -- -- 5 µs
1 -- -- 50 Degrees
PV
).
PEAK
07.25.03 Rev 3
All data sheets are subject to change without notice
©2003 Maxwell Techno logies
All rights reserved.
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Operational Amplifiers
OP284
FIGURE 1. INPUT OFFSET VOLTAGE DISTRIBUTION
FIGURE 2. INPUT OFFSET VOLTAGE DISTRIBUTION
FIGURE 4. INPUT OFFSET VOLTAGE DRIFT DISTRIBUTION
FIGURE 5. INPUT OFFSET VOLTAGE DRIFT DISTRIBUTION
FIGURE 3. INPUT OFFSET VOLTAGE DISTRIBUTION
07.25.03 Rev 3
FIGURE 6. BIAS CURRENT VS. TEMPERATURE
All data sheets are subject to change without notice
©2003 Maxwell Techno logies
All rights reserved.
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