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

[phone] - Fax: [phone] - 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

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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

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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

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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

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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

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OP284

FIGURE 7. INPUT BIAS CURRENT VS. COMMON-MODE

VOLTAGE

FIGURE 8. OUTPUT VOLTAGE TO SUPPLY RAIL VS. LOAD

CURRENT

FIGURE 9. SUPPLY CURRENT VS. TEMPERATURE

FIGURE 10. SUPPLY CURRENT VS. SUPPLY VOLTAGE

07.25.03 Rev 3

FIGURE 11. SHORT CIRCUIT CURRENT VS. TEMPERATURE

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OP284

FIGURE 12. OPEN-LOOP GAIN AND PHASE VS. FREQUENCY

(NO LOAD)

FIGURE 13. OPEN-LOOP GAIN AND PHASE VS. FREQUENCY

(NO LOAD)

FIGURE 14. OPEN-LOOP GAIN AND PHASE VS. FREQUENCY

(NO LOAD)

FIGURE 15. OPEN-LOOP GAIN VS. TEMPERATURE

07.25.03 Rev 3

All data sheets are subject to change without notice

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OP284

FIGURE 16. CLOSED-LOOP GAIN VS. FREQUENCY (2KW

LOAD)

FIGURE 17. CLOSED-LOOP GAIN VS. FREQUENCY (2KW

LOAD)

FIGURE 18. CLOSED-LOOP GAIN VS. FREQUENCY (2KW

LOAD)

FIGURE 19. OUTPUT IMPEDANCE VS. FREQUENCY

07.25.03 Rev 3

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OP284

FIGURE 20. OUTPUT IMPEDANCE VS. FREQUENCY

FIGURE 21. OUTPUT IMPEDANCE VS. FREQUENCY

FIGURE 23. MAXIMUM OUTPUT SWING VS. FREQUENCY

FIGURE 24. CMMR VS. FREQUENCY

FIGURE 22. MAXIMUM OUTPUT SWING VS. FREQUENCY

07.25.03 Rev 3

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OP284

FIGURE 25. PSRR VS. FREQUENCY

FIGURE 26. SMALL SIGNAL OVERSHOOT VS. CAPACITIVE

LOAD

FIGURE 27. SLEW RATE VS. TEMPERATURE

FIGURE 28. VOLTAGE NOISE DENSITY VS. FREQUENCY

07.25.03 Rev 3

FIGURE 29. CURRENT NOISE DENSITY VS. FREQUENCY

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OP284

FIGURE 30. SETTLING TIME VS. STEP SIZE

FIGURE 31. SETTLING VS. STEP SIZE

FIGURE 33. 0.1 HZ TO 10 HZ NOISE

FIGURE 34. CHANNEL SEPARATION VS. FREQUENCY

FIGURE 32. 0.1 HZ TO 10 HZ NOISE

07.25.03 Rev 3

All data sheets are subject to change without notice

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OP284

FIGURE 35. SMALL SIGNAL TRANSIENT RESPONSE

FIGURE 36. SMALL SIGNAL TRANSIENT RESPONSE

FIGURE 38. SMALL SIGNAL TRANSIENT RESPONSE

FIGURE 39. TOTAL HARMONIC DISTORTION VS. FREQUENCY

FIGURE 37. SMALL SIGNAL TRANSIENT RESPONSE

07.25.03 Rev 3

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OP284

8-PIN RAD-PAK® FLAT PACKAGE

SYMBOL DIMENSION

MIN NOM MAX

A 0.119 0.132 0.149
b 0.010 0.017 0.022

c 0.004 0.005 0.009
D 0.250 0.255 0.260
E 0.250 0.255 0.260

E1 -- -- 0.290
E2 0.125 0.145 -­E3 0.030 0.040 --

e 0.050 BSC
L 0.338 0.348 0.358
Q 0.021 0.025 0.045

S1 0.005 0.019 --

N8

F8-01

Note: All dimensions in inches

07.25.03 Rev 3

All data sheets are subject to change without notice

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SYMBOL DIMENSION

A 0.123 0.135 0.150
b 0.018 0.020 0.025
D 0.245 0.250 0.260

D1 0.150 BSC
S1 0.050 BSC

e 0.050 BSC

A1 0.095 0.105 0.116

N16

OP284

16-PIN RAD-PAK® LCC PACKAGE

MIN NOM MAX

LC16-01

Note: All dimensions in inches.

07.25.03 Rev 3

All data sheets are subject to change without notice

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Important Notice:
These data sheets are created using the chip manufacturer’s published specifications. Maxwell Technologies verifies

functionality by testing key parameters either by 100% testing, sample testing or characterization.
The specifications presented within these data sheets represent the latest and most accurate information available to

date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no
responsibility for the use of this information.

Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems
without express written approval from Maxwell Technologies.

Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Tech­nologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.

OP284

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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Product Ordering Options

Model Number

OP284

OP284

RP

F X

Feature

Screening Flow

Package

Option Details

Monolithic
S = Maxwell Class S
B = Maxwell Class B
E = Engineering (testing @ +25°C)
I = Industrial (testing @ -40° C,
+25°C, +125°C)

F = Flat Pa ck
L = Leadless Chip Carrier (LLC)

Radiation Feature

Base Product
Nomenclature

07.25.03 Rev 3

RP = R

AD-PAK® package

Operational Amplifier

All data sheets are subject to change without notice

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©2003 Maxwell Technologies

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