Analog Devices OP90GP, OP90EZ, OP90AZ-883 Datasheet

Precision Low-Voltage Micropower

a

FEATURES
Single/Dual Supply Operation: 1.6 V to 36 V,

ⴞ0.8 V to ⴞ18 V

True Single-Supply Operation; Input and Output

Voltage Ranges Include Ground
Low Supply Current: 20 ␮A Max
High Output Drive: 5 mA Min
Low Input Offset Voltage: 150 ␮V Max
High Open-Loop Gain: 700 V/mV Min
Outstanding PSRR: 5.6 ␮V/V Max
Standard 741 Pinout with Nulling to V–

GENERAL DESCRIPTION

The OP90 is a high performance, micropower op amp that
operates from a single supply of 1.6 V to 36 V or from dual
supplies of ±0.8 V to ±18 V. The input voltage range includes
the negative rail allowing the OP90 to accommodate input
signals down to ground in a single-supply operation. The OP90’s
output swing also includes a ground when operating from a
single-supply, enabling “zero-in, zero-out” operation.

The OP90 draws less than 20 µA of quiescent supply current,
while able to deliver over 5 mA of output current to a load. The
input offset voltage is below 150 µV eliminating the need for

Operational Amplifier

OP90

PIN CONNECTIONS

8-Lead Hermetic DIP

(Z-Suffix)

8-Lead Epoxy Mini-DIP

(P-Suffix)

8-Lead SO

(S-Suffix)

1

NULL

V

OS

2

–IN

3

+IN

4

NC = NO CONNECT

external nulling. Gain exceeds 700,000 and common-mode
rejection is better than 100 dB. The power supply rejection
ratio of under 5.6 µV/V minimizes offset voltage changes experi-
enced in battery-powered systems.

The low offset voltage and high gain offered by the OP90 bring
precision performance to micropower applications. The minimal
voltage and current requirements of the OP90 suit it for battery
and solar powered applications, such as portable instruments,
remote sensors, and satellites.

8

NC

7

V+

6

OUT

5

V

NULLV–

OS

+IN

–IN

**

NULL NULL

*ELECTRONICALLY ADJUSTED ON CHIP
FOR MINIMUM OFFSET VOLTAGE

Figure 1. Simplied Schematic

REV. A

Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.

V+

OUTPUT

V–

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Tel: [phone] www.analog.com
Fax: [phone] © Analog Devices, Inc., 2002

OP90

–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

(VS = ⴞ1.5 V to ⴞ15 V, TA = 25ⴗC, unless otherwise noted.)

OP90A/E OP90G

Parameter Symbol Conditions Min Typ Max Min Typ Max Unit

INPUT OFFSET VOLTAGE V

INPUT OFFSET CURRENT I

INPUT BIAS CURRENT I

OS

OS

B

LARGE-SIGNAL V

VOLTAGE GAIN A

VO

A

VO

A

VO

VCM = 0 V 0.4 3 0.4 5 nA

VCM = 0 V 4.0 15 4.0 25 nA

= ±15 V, VO = ±10 V

S

RL = 100 kΩ 700 1200 400 800 V/mV
RL= 10 kΩ 350 600 200 400 V/mV
RL = 2 kΩ 125 250 100 200 V/mV

50 150 125 450 µV

V+ = 5 V, V– = 0 V,

< 4 V

O

INPUT VOLTAGE RANGE

1

1 V < V

A

VO

A

VO

RL = 100 kΩ 200 400 100 250 V/mV
RL = 10 kΩ 100 180 70 140 V/mV

IVR V+ = 5 V, V– = 0 V 0/4 0/4 V

VS = ±15 V –15/13.5 –15/13.5 V

OUTPUT VOLTAGE SWING V

O

V

OH

V

OL

VS = ±15 V
R

= 10 kΩ±14 ± 14.2 ±14 ±14.2 V

L

= 2 kΩ±11 ± 12 ± 11 ± 12 V

R

L

V+ = 5 V, V– = 0 V
R

= 2 kΩ 4.0 4.2 4.0 4.2 V

L

V+ = 5 V, V– = 0 V
RL = 10 kΩ 100 500 100 500 µV

COMMON-MODE CMR V+ = 5 V, V– = 0 V,

REJECTION 0 V < VCM < 4 V 90 110 80 100 dB

CMR V

= ±15 V,

S

–15 V < VCM < 13.5 V 100 130 90 120 dB

POWER SUPPLY

REJECTION RATIO PSRR 1.0 5.6 3.2 10 µV/V

SLEW RATE SR VS = ±15 V 5 12 5 12 V/ms

SUPPLY CURRENT I

CAPACITIVE LOAD A

STABILITY

2

INPUT NOISE VOLTAGE e

I

SY

SY

n p-p

VS = ±1.5 V 9 15 9 15 µA
VS = ±15 V 14 20 14 20 µA

= 1

V

No Oscillations 250 650 250 650 pF

fO = 0.1 Hz to 10 Hz
VS = ±15 V 3 3 µV p-p

INPUT RESISTANCE

DIFFERENTIAL MODE R

IN

VS = ±15 V 30 30 MΩ

INPUT RESISTANCE

COMMON-MODE R

NOTES

1

Guaranteed by CMR test.

2

Guaranteed but not 100% tested.

Specifications subject to change without notice.

INCM

VS = ±15 V 20 20 GΩ

–2–

REV. A

OP90

ELECTRICAL CHARACTERISTICS

(VS = ⴞ1.5 V to ⴞ15 V, –55ⴗC  TA  +125ⴗC, unless otherwise noted.)

Parameter Symbol Conditions Min Typ Max Unit

INPUT OFFSET VOLTAGE V

OS

80 400 µV

AVERAGE INPUT OFFSET

VOLTAGE DRIFT TCV

INPUT OFFSET CURRENT I

INPUT BIAS CURRENT I

OS

B

OS

V

= 0 V 1.5 5 nA

CM

V

= 0 V 4.0 20 nA

CM

0.3 2.5 µV/°C

LARGE-SIGNAL

VOLTAGE GAIN A

VO

A

VO

VS = ±15 V, VO = ±10 V

= 100 kΩ 225 400 V/mV

R

L

R

= 10 kΩ 125 240 V/mV

L

= 2 kΩ 50 110 V/mV

R

L

V+ = 5 V, V– = 0 V,
1 V < V
R

L

< 4 V

O

= 100 kΩ 100 200 V/mV

RL = 10 kΩ 50 110 V/mV

INPUT VOLTAGE RANGE

*

IVR V+ = 5 V, V– = 0 V 0/3.5 V

VS = ±15 V –15/13 5 V

OUTPUT VOLTAGE SWING V

O

V

OH

V

OL

VS = ±15 V
R

= 10 kΩ±13.5 ± 13.7 V

L

= 2 kΩ±10.5 ± 11.5 V

R

L

V+ = 5 V, V– = 0 V
R

= 2 kΩ 3.9 4.1 V

L

V+ = 5 V, V– = 0 V
RL = 10 kΩ 100 500 µV

COMMON-MODE

REJECTION CMR V+ = 5 V, V– = 0 V,

0 V < V

= ±15 V,

V

S

< 3.5 V 85 105 dB

CM

15 V < VCM < 13.5 V 95 115 dB

POWER SUPPLY

REJECTION RATIO PSRR 3.2 10 µV/V

SUPPLY CURRENT I

SY

VS = ±1.5 V 15 25 µA
VS = ±15 V 19 30 µA

NOTE

*Guaranteed by CMR test.

REV. A

–3–

OP90

(VS = ⴞ1.5 V to ⴞ15 V, –25ⴗC  TA  +85ⴗC for OP90E/F, –40ⴗC  TA  +85ⴗC for

ELECTRICAL CHARACTERISTICS

Parameter Symbol Conditions Min Typ Max Min Typ Max Unit

INPUT OFFSET VOLTAGE V

AVERAGE INPUT OFFSET

VOLTAGE DRIFT TCV

INPUT OFFSET CURRENT I

INPUT BIAS CURRENT I

LARGE-SIGNAL A

VOLTAGE GAIN R

INPUT VOLTAGE RANGE* IVR V+ = 5 V, V– = 0 V 0/3.5 0/3.5 V

OUTPUT VOLTAGE SWING V

COMMON-MODE CMR V+ = 5 V, V– = 0 V,

REJECTION 0 V < V

POWER SUPPLY

REJECTION RATIO PSRR 10 5.6 5.6 17.8 µV/V

SUPPLY CURRENT I

NOTE
*Guaranteed by CMR test.

OS

OS

OS

B

VO

A

VO

O

V

OH

V

OL

SY

OP90G, unless otherwise noted.)

OP9OE OP9OG

70 270 180 675 µV

0.3 2 1.2 5 µV/°C

VCM = 0 V 0.8 3 1.3 7 nA

VCM = 0 V 4.0 15 4.0 25 nA

VS = ±15 V, VO = ±10 V

= 100 kΩ 500 800 300 600 V/mV

L

= 10 kΩ 250 400 150 250 V/mV

R

L

= 2 kΩ 100 200 75 125 V/mV

R

L

V+ = 5 V, V– = 0 V,
1 V < V
R

< 4 V

O

= 100 kΩ 150 280 80 160 V/mV

L

RL = 10 kΩ 75 140 40 90 V/mV

VS = ±15 V –15/13.5 –15/13.5 V

VS = ±15 V

= 10 kΩ±13.5 ± 14 ±13.5 ± 14 V

R

L

R

= 2 kΩ±10.5 ± 11.8 ± 10.5 ±11.8 V

L

V+ = 5 V, V– = 0 V

= 2 kΩ 3.9 4.1 3.9 4.1 V

R

L

V+ = 5 V, V– = 0 V
RL = 10 kΩ 100 500 100 500 µV

< 3.5 V 80 100 80 100 dB

CM

= ±15 V,

V

S

–15 V < VCM < 13.5 V 100 120 90 110 dB

VS = ±1.5 V 13 25 12 25 µA
VS = ±15 V 17 30 16 30 µA

–4–

REV. A