Analog Devices OP400 c Datasheet

Quad Low Offset, Low Power

Operational Amplifier

OP400

FEATURES
Low Input Offset Voltage 150 ␮V Max
Low Offset Voltage Drift, Over –55ⴗC to +125ⴗC

1.2 pV/ⴗC Max
Low Supply Current (Per Amplifier) 725 ␮A Max
High Open-Loop Gain 5000 V/mV Min
Input Bias Current 3 nA Max
Low Noise Voltage Density 11 nV/√Hz at 1 kHz
Stable With Large Capacitive Loads 10 nF Typ
Pin Compatible to LM148, HA4741, RM4156, and LT1014

with Improved Performance

Available in Die Form

GENERAL DESCRIPTION

The OP400 is the first monolithic quad operational amplifier
that features OP77 type performance. Precision performance no
longer has to be sacrificed to obtain the space and cost savings
offered by quad amplifiers.

The OP400 features an extremely low input offset voltage of
less than 150 µV with a drift of under 1.2 µV/°C, guaranteed
over the full military temperature range. Open-loop gain of the
OP400 is over 5,000,000 into a 10 kΩ load, input bias current is
under 3 nA, CMR is above 120 dB, and PSRR is below 1.8 µV/V.
On-chip zener-zap trimming is used to achieve the low input
offset voltage of the OP400 and eliminates the need for offset
nulling. The OP400 conforms to the industry-standard quad
pinout which does not have null terminals.

PIN CONNECTIONS

14-PIN CERAMIC DIP

(Y-Suffix)

14-PIN PLASTIC DIP

(P-Suffix)

The OP400 features low power consumption, drawing less than
725 µA per amplifier. The total current drawn by this quad
amplifier is less than that of a single OP07, yet the OP400 offers
significant improvements over this industry standard op amp.
Voltage noise density of the OP400 is a low 11 nV/
which is half that of most competitive devices.

The OP400 is pin-compatible with the LM148, HA4741,
RM4156, and LT1014 operational amplifiers and can be used
to upgrade systems using these devices. The OP400 is an ideal
choice for applications requiring multiple precision operational
amplifiers and where low power consumption is critical.

16-PIN SOIC

(S-Suffix)

√

Hz at 10 Hz,

Figure 1. Simplified Schematic (One of Four Amplifiers Is Shown)

REV. C

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Fax: [phone] © 2003 Analog Devices, Inc. All rights reserved.

OP400–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

(@ VS = ⴞ15 V, TA = 25ⴗC, unless otherwise noted.)

OP400A/E OP400F OP400G/H

Parameter Symbol Conditions Min Typ Max Min Typ Max Min Typ Max Unit

Input Offset

Voltage V

OS

40 150 60 230 80 300 µV

Long-Term Input

Voltage Stability 0.1 0.1 0.1 µV/mo

Input Offset

Current I

OS

VCM = °V 0.1 1.0 0.1 2.0 0.1 3.5 nA

Input Bias

Current I

B

VCM = °V0.753.0 0.75 6.0 0.75 7.0 nA

Input Noise

Voltage e

Input Noise

Voltage Density

n p-p

1

e

n

0.1 Hz to 10 Hz 0.5 0.5 0 5 µV p-p

fO = 10 Hz

= 1000 Hz

f

O

1

1

22 36 22 36 22
11 18 11 18 11 nV/√Hz

Input Noise

Current i

n p-p

0.1 Hz to 10 Hz 15 15 15 pAp-p

Input Noise

Current Density i

n

fO= 10 Hz 0.6 0.6 0.6 pA/√Hz

Input Resistance

Differential Mode R

IN

10 10 10 MΩ

Input Resistance

Common Mode R

INCM

200 200 200 GΩ

Large Signal

Voltage Gain A

Input Voltage

Range

3

VO

IVR ±12 ± 13 ±12 ± 13 ±12 ± 13 V

VO = ±10 V

= 10 kΩ 5000 12000 3000 7000 3000 7000

R

L

= 2 kΩ 2000 3500 1500 3000 1500 3000 V/mV

R

L

Common Mode

Rejection CMR VCM = 12 V 120 140 115 140 110 135 dB

Power Supply

Rejection Ratio PSRR V

= 3 V

S

to 18 V 0.1 1.8 0.1 3.2 0.2 5.6 µV/V

Output Voltage

Swing V

O

RL = 10 kΩ±12 ±12.6 ±12 ± 12.6 ±12 ± 12.6 V
R

= 2 kΩ±11 ±12.2 ±11 ± 12.2 ±11 ± 12.2

L

Supply Current

Per Amplifier I

SY

No Load 600 725 600 725 600 725 µA

Slew Rate SR 0.1 0.15 0.1 0.15 0.1 0.15 V/µs
Gain Bandwidth

Product GBWP A

= 1 500 500 500 kHz

V

Channel

Separation CS V

= 20 V p-p 123 135 123 135 123 135 dB

O

= 10 Hz

f

O

2

Input

Capacitance C

IN

3.2 3.2 3.2 pF

Capacitive Load

Stability A

= 1

V

No Oscillations 10 10 10 nF

NOTES

1

Sample tested

2

Guaranteed but not 100% tested.

3

Guaranteed by CMR test

–2–

REV. C

OP400

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

(continued)

(@ VS = ⴞ15 V, –55ⴗC < TA = 125ⴗC for OP400A, unless otherwise noted.)

Parameter Symbol Conditions Min Typ Max Unit

Input Offset Voltage V

OS

Average Input Offset Voltage Drift TCV
Input Offset Current I
Input Bias Current I

Large Signal Voltage Gain A

Input Voltage Range

*

OS

B

VO

IVR ±12 ±12.5 V

OS

VCM = 0 V 01 2.5 nA
VCM = 0 V 1.3 5.0 nA

VO = ±10 V RL = 10 kΩ 3000 9000 V/mV

= 2 kΩ 1000 2300

R

L

70 270 µV

0.3 12 µV/°C

Common Mode Rejection CMR VCM = ±12 V 115 130 dB
Power Supply Rejection Ratio PSRR VO = 3 V to 18 V 0.2 3.2 µV/V
Output Voltage Swing V

Supply Current Per Amplifier I

O

SY

RL = 10 kΩ±12 ± 12.4
R

= 2 kΩ±11 ±12 V

L

No Load 600 775 µA

Capacitive Load Stability AV = 1 8 nF

No Oscillations

NOTE

*

Guaranteed by CMR test

(@ VS = ⴞ15 V, –25ⴗC < TA < ⴞ85ⴗC for OP400E/F, 0ⴗC < TA < 70ⴗC for OP400G,

ELECTRICAL CHARACTERISTICS

–40ⴗC < TA < +85ⴗC for OP400H, unless otherwise noted.)

OP400A/E OP400F OP400G/H

Parameter Symbol Conditions Min Typ Max Min Typ Max Min Typ Max Unit

Input Offset

Voltage V

OS

60 220 80 350 110 400 µV

Average Input Offset

Voltage Drift TCV

OS

0 3 1.2 0.3 2.0 0.6 2.5 µV/°C

Input Offset

Current I

OS

VCM = 0 V
E, F, G Grades 0.1 2.5 0.1 3.5 0.2 6.0
H Grade 0.2 12.0 nA

Input Bias

Current I

B

VCM = 0 V
E, F, G Grades 0.1 2.5 0.1 3.5 1.0 12.0
H Grade 1.0 20.0 nA

Large-Signal

Voltage Gain A

VO

VCM = 0 V

= 10 kΩ 3000 10000 2000 5000 2000 5000

R

L

RL = 2 kΩ 1500 2700 1000 2000 1000 2000 V/mv

Input Voltage

Range IVR * ±12 ± 12.5 ± 12 ± 12.5 ± 12 ± 12.5 V

Common-Mode

Rejection CMR VCM = ±12 V 115 135 110 135 105 130 dB

Power Supply

Rejection Ratio PSRR V

= ±3 V

S

to ±18 V 0.15 3.2 0.15 5.6 0.3 10.0 µV/V

Output Voltage

Swing V

O

RL = 10 kΩ±12 ±12.4 ±12 ± 12.4 ±12 ± 12.6 V
RL = 2 kΩ±11 ±12 ± 11 ± 12 ±11 ± 12.2

Supply Current

Per Amplifier I

SY

No Load 600 775 600 775 600 775 µA

Capacitive Load 10 10 10 nF

Stability No Oscillations

NOTE

*

Guaranteed by CMR test.

–3–REV. C

OP400

DICE CHARACTERISTICS

DIE SIZE 0.181 ⴛ 0.123 inch, 22,263 sq. milts

(4.60 ⴛ 3.12 mm, 14.35 sq. mm)

1. OUT A 8. OUT C

2. –IN A 9. –IN C

3. +INA 10. +IN C

4. V+ 11. V-

5. +IN B 12. +IND

6. –IN B 13. –IN D

7. OUT B 14. OUT D

WAFER TEST LIMITS

(@ VS = ⴞ15 V, TA = 25ⴗC, unless otherwise noted.)

OP400GBC

Parameter Symbol Conditions Limit Unit

Input Offset Voltage V
Input Offset Current V
Input Bias Current I
Large Signal A

OS

OS

B

VO

Voltage Gain R

Input Voltage Range

*

IVR * ±12 V Min

VCM = 0 V 2 nA Max
VCM = 0 V 6 nA Max
VO = ±10 V RL = 10 kΩ 3000

= 2 kΩ 1500 V/mV Min

L

230 µA Max

Common Mode Rejection CMR VCM = ±12 V 115 dB Min
Power Supply Rejection Ratio PSRR VS = ±3 V to ±18 V 3.2 µV/V Max
Output Voltage Swing V

Supply Current Per Amplifier I

NOTE

*

Guaranteed by CMR 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 qualification through sample lot assembly and testing.

O

SY

RL = 10 kΩ±12

= 2 kΩ±11 V Min

R

L

No Load 725 µA Max

–4–

REV. C