MAXWELL 124RPFS, 124RPFI, 124RPFE, 124RPFB Datasheet

124

Low-Power Quad

Operational Amplifier

Logic Diagram

FEATURES:

•RAD-PAK® technology-hardened against natural space radi-
ation

• Total dose hardness:

- > 100 krad (Si), depending upon space mission

• Excellent Single Event Effects:

• - SELTH LET = > 90 MeV/mg/cm2

• Package: -14 pin Rad-Pak® flat pack

• Internally frequency compensated for unity gain

• Large DC voltage gain

• Wide bandwidth (unity gain): 1 MHz

• Large output voltage swing 0V to V+ -1.5V

• Input common - mode voltage range includes ground

• Wide power supply range:

- Single supply 3V to 32V

- Dual supply ±1.5V to ±16V

• Very low current drain (essentially independent of supply
voltage): 700 mA

• Low input biasing current: 45 nA

• Low input offset voltage and current: 2mV, 5nA

• Differential input voltage range equal to the power supply
voltage

DESCRIPTION:

Maxwell Technologies’s 124 independent, high gain, internally
frequency compensated operational amplifiers feature a
greater than 100 krad (Si) total dose tolerance, depending
upon space mission. Using Maxwell’s radiation-hardened
Rad-Pak® packaging technology, the 124 is designed specifi­cally to operate from a single power supply over a wide range
of voltages. The 124 also features operation from split power
supplies, and the low power supply current drain is indepen­dent of the magnitude of the power supply voltage.

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.

AD-PAK® packaging technol-

AD-PAK provides greater than 100

Memory

1000551

[phone] - Fax: [phone] - www.maxwell.com

12.19.01 Rev5

All data sheets are subject to change without notice

©2001 Maxwell Technologies

All rights reserved.

1

Low-Power Quad Operational Amplifier

TABLE 1. PINOUT DESCRIPTION

PIN SYMBOL DESCRIPTION

1, 7, 8, 14 OUTPUT 1 - 4 Ouput

2, 6, 9, 13 INPUT 1- – 4- Input (-)

3, 5, 10, 12 INPUT 1+ – 4+ Input (+)

4 V+ Power Supply

11 GN D Gr oun d

TABLE 2. 124 ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL MIN MAX UNIT

Supply Voltage V+ 32 V

Differential Input Voltage 32 V

Input Voltage -0.3 +32 V

Input Current (V

Output Short-Circuit to GND (One Amplifier)
V+ <

15V, TA = 25°C

Storage Temperature Range T

Operating Temperature Range T

ESD Tolerance

< -0.3V)

IN

3

1

2

S

A

-65 150 °C

-55 125 °C

50 mA

Continuous

250 V

124

Memory

1. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base
junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this
diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output
voltages of the op amps to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is
driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative,
again returns to a value greater than -0.3V (at 25°C).

2. Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to
ground, the maximum output current is approximately 40 mA independent of the magnitude of V+. At values of supply voltage
in excess of +15V, continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction.
Destructive dissipation can result from simultaneous shorts on all amplifiers.

3. Human body model, 1.5 kΩ in series with 100 pF.

TABLE 3. DELTA LIMITS

PARAMETER VARIATION

1000551

I

CC

±10% of specified value in Table 5

12.19.01 Rev5

All data sheets are subject to change without notice

2

©2001 Maxwell Technologies

All rights reserved.

Low-Power Quad Operational Amplifier

TABLE 4. 124 ELECTRICAL CHARACTERISTICS

(V+ = 5.0V, TA = -55 TO +125°C, UNLESS OTHERWISE SPECIFIED)

P

ARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

124

Supply Current I

Over Full Temperature Range

CC

RL = ∞ On All Op Amps

V+ = 30V
V+ = 5V

Common-Mode Rejection Ratio CMRR DC, V

T

= 0V to V+ -1.5V,

CM

= 25°C

A

Power Supply Rejection Ratio PSRR V+ = 5V to 30V

= 25°C

T

A

Amplifier-to-Amplifier Coupling

1

f = 1 kHz to 20 kHz, TA = 25°C
(Input Referred)

Short Circuit to Ground

Input Offset Voltage

2

3

Input Offset Voltage Drift R

Input Offset Current I

Input Offset Current Drift R

Input Bias Current lib I

Input Common-Mode Voltage

4

Range

Large Signal Voltage Gain A

I

V

V+ = 15V, TA = 25°C 40 60 mA

OS

IO

= 0Ω 7µV/°C

S

IIN(+)-IIN(-), V

OS

= 0Ω --- 10 -- pA/°C

S

(+) or IIN(-) --- 40 300 nA

IN

CM

V+ = +30V 0 V+ -2 V

V+ = +15V

VS

(V

Swing = 1V to 11V)

O

RL> 2 KΩ

Output Voltage Swing V

Output Current Source VO = 2V, V

OH

V+ = 30V, R

OL

V+ = 5V, R

V

Sink 15

= 2 kΩ

L

R

= 10 kΩ

L

= 10 kΩ 520mV

L

+

IN

-

V

IN
+

V

= 15V

+

V

IN

-

V

IN
+

V

= 15V

1.5

0.7

3

1.2

70 85 dB

65 100 dB

-120 dB

7mV

= 0V --- -- 100 nA

25 V/mV

26
27 28

= +1V

20 mA

= 0V

= +1V
= 0V

mA

Memory

V

1. Due to proximity of external components, insure that coupling is not originating via stray capacitance between these external parts.
This typically can be detected as this type of capacitance increases at higher frequencies.

2. Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to
ground, the maximum output current is approximately 40 mA independent of the magnitude of V+. At values of supply voltage in
excess of +15V, continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction. Destructive dis­sipation can result from simultaneous shorts on all amplifiers.

3. VO@1.4V, RS=0Ω with V+ from 5V to 30V; and over the full input common-mode range (0V to V+ -1.5V).

4. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (at 25°C).
The upper end of the common-mode voltage range is V+ -1.5V (at 25°C), but either or both inputs can go to +32V without damage
independent of the magnitude of V+.

1000551

12.19.01 Rev5

All data sheets are subject to change without notice

©2001 Maxwell Technologies

All rights reserved.

3

Low-Power Quad Operational Amplifier

FIGURE 1. INPUT VOLTAGE RANGE

124

Memory

FIGURE 2. INPUT CURRENT

1000551

12.19.01 Rev5

All data sheets are subject to change without notice

©2001 Maxwell Technologies

All rights reserved.

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