Analog Devices OP90GP, OP90EZ, OP90AZ-883 Datasheet

a		Precision Low-Voltage Micropower
		Operational Amplifier
		OP90

FEATURES

Single/Dual Supply Operation: 1.6 V to 36 V,0.8 V to 18 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 A of quiescent supply current, while able to deliver over 5 mA of output current to a load. The input offset voltage is below 150 V eliminating the need for

PIN CONNECTIONS

8-Lead Hermetic DIP

(Z-Suffix)

8-Lead Epoxy Mini-DIP

(P-Suffix)

8-Lead SO

(S-Suffix)

VOS NULL	1	8	NC
–IN	2	7	V+
+IN	3	6	OUT
V–	4	5	VOS NULL

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 V/V minimizes offset voltage changes experienced 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.

V+

+IN

OUTPUT

–IN

*	*
NULL	NULL

V–

*ELECTRONICALLY ADJUSTED ON CHIP FOR MINIMUM OFFSET VOLTAGE

Figure 1. Simplied Schematic

REV. A

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

OP90–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS (VS = 1.5 V to 15 V, TA = 25 C, unless otherwise noted.)

				OP90A/E			OP90G
Parameter	Symbol	Conditions	Min	Typ	Max	Min	Typ	Max	Unit
INPUT OFFSET VOLTAGE	VOS			50	150		125	450	µV
INPUT OFFSET CURRENT	IOS	VCM = 0 V		0.4	3		0.4	5	nA
INPUT BIAS CURRENT	IB	VCM = 0 V		4.0	15		4.0	25	nA
LARGE-SIGNAL		VS = ± 15 V, VO = ± 10 V
VOLTAGE GAIN	AVO	RL = 100 kΩ	700	1200		400	800		V/mV
	AVO	RL= 10 kΩ	350	600		200	400		V/mV
	AVO	RL = 2 kΩ	125	250		100	200		V/mV
		V+ = 5 V, V– = 0 V,
		1 V < VO < 4 V
	AVO	RL = 100 kΩ	200	400		100	250		V/mV
	AVO	RL = 10 kΩ	100	180		70	140		V/mV
INPUT VOLTAGE RANGE1	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	VO	VS = ± 15 V
		RL = 10 kΩ	± 14	± 14.2		± 14	± 14.2		V
	VOH	RL = 2 kΩ	± 11	± 12		± 11	± 12		V
		V+ = 5 V, V– = 0 V
		RL = 2 kΩ	4.0	4.2		4.0	4.2		V
	VOL	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	VS = ± 15 V,
		–15 V < VCM < 13.5 V	100	130		90	120		dB
POWER SUPPLY									µV/V
REJECTION RATIO	PSRR			1.0	5.6		3.2	10
SLEW RATE	SR	VS = ± 15 V	5	12		5	12		V/ms
SUPPLY CURRENT	ISY	VS = ± 1.5 V		9	15		9	15	µA
	ISY	VS = ± 15 V		14	20		14	20	µA
CAPACITIVE LOAD		AV = 1
STABILITY2		No Oscillations	250	650		250	650		pF
INPUT NOISE VOLTAGE	en p-p	fO = 0.1 Hz to 10 Hz
		VS = ± 15 V		3			3		µV p-p
INPUT RESISTANCE		VS = ± 15 V							MΩ
DIFFERENTIAL MODE	RIN			30			30
INPUT RESISTANCE		VS = ± 15 V							GΩ
COMMON-MODE	RINCM			20			20

NOTES

1Guaranteed by CMR test.

2Guaranteed but not 100% tested.

Specifications subject to change without notice.

–2–

REV. A

						OP90
ELECTRICAL CHARACTERISTICS (VS = 1.5 V to 15 V, –55 C TA +125 C, unless otherwise noted.)
Parameter	Symbol	Conditions	Min	Typ	Max	Unit
INPUT OFFSET VOLTAGE	VOS			80	400	µV
AVERAGE INPUT OFFSET						µV/°C
VOLTAGE DRIFT	TCVOS			0.3	2.5
INPUT OFFSET CURRENT	IOS	VCM = 0 V		1.5	5	nA
INPUT BIAS CURRENT	IB	VCM = 0 V		4.0	20	nA
LARGE-SIGNAL		VS = ± 15 V, VO = ± 10 V
VOLTAGE GAIN	AVO
		RL = 100 kΩ	225	400		V/mV
		RL = 10 kΩ	125	240		V/mV
		RL = 2 kΩ	50	110		V/mV
	AVO	V+ = 5 V, V– = 0 V,
		1 V < VO < 4 V
		RL = 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	VO	VS = ± 15 V
		RL = 10 kΩ	± 13.5	± 13.7		V
	VOH	RL = 2 kΩ	± 10.5	± 11.5		V
		V+ = 5 V, V– = 0 V
		RL = 2 kΩ	3.9	4.1		V
	VOL	V+ = 5 V, V– = 0 V
		RL = 10 kΩ		100	500	µV
COMMON-MODE
REJECTION	CMR	V+ = 5 V, V– = 0 V,
		0 V < VCM < 3.5 V	85	105		dB
		VS = ± 15 V,
		15 V < VCM < 13.5 V	95	115		dB
POWER SUPPLY						µV/V
REJECTION RATIO	PSRR			3.2	10
SUPPLY CURRENT	ISY	VS = ± 1.5 V		15	25	µA
		VS = ± 15 V		19	30	µA

NOTE

*Guaranteed by CMR test.

REV. A

–3–

OP90

ELECTRICAL CHARACTERISTICS

(VS = 1.5 V to 15 V, –25 C TA +85 C for OP90E/F, –40 C TA +85 C for

OP90G, unless otherwise noted.)

				OP9OE		OP9OG
Parameter	Symbol	Conditions	Min	Typ	Max	Min	Typ	Max	Unit
INPUT OFFSET VOLTAGE	VOS			70	270		180	675	µV
AVERAGE INPUT OFFSET									µV/°C
VOLTAGE DRIFT	TCVOS			0.3	2		1.2	5
INPUT OFFSET CURRENT	IOS	VCM = 0 V		0.8	3		1.3	7	nA
INPUT BIAS CURRENT	IB	VCM = 0 V		4.0	15		4.0	25	nA
LARGE-SIGNAL	AVO	VS = ± 15 V, VO = ± 10 V
VOLTAGE GAIN		RL = 100 kΩ	500	800		300	600		V/mV
		RL = 10 kΩ	250	400		150	250		V/mV
	AVO	RL = 2 kΩ	100	200		75	125		V/mV
		V+ = 5 V, V– = 0 V,
		1 V < VO < 4 V
		RL = 100 kΩ	150	280		80	160		V/mV
		RL = 10 kΩ	75	140		40	90		V/mV
INPUT VOLTAGE RANGE*	IVR	V+ = 5 V, V– = 0 V	0/3.5			0/3.5			V
		VS = ± 15 V	–15/13.5			–15/13.5			V
OUTPUT VOLTAGE SWING	VO	VS = ± 15 V
		RL = 10 kΩ	± 13.5	± 14		± 13.5		± 14	V
	VOH	RL = 2 kΩ	± 10.5	± 11.8		± 10.5		± 11.8	V
		V+ = 5 V, V– = 0 V
	VOL	RL = 2 kΩ	3.9	4.1		3.9	4.1		V
		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 < 3.5 V	80	100		80	100		dB
		VS = ± 15 V,
		–15 V < VCM < 13.5 V	100	120		90	110		dB
POWER SUPPLY									µV/V
REJECTION RATIO	PSRR			10	5.6		5.6	17.8
SUPPLY CURRENT	ISY	VS = ± 1.5 V		13	25		12	25	µA
		VS = ± 15 V		17	30		16	30	µA

NOTE

*Guaranteed by CMR test.

–4–

REV. A