OP90AZ/883 AD [Analog Devices], OP90AZ/883 Datasheet

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OP90AZ/883

Manufacturer Part Number
OP90AZ/883
Description
Precision Low-Voltage Micropower Operational Amplifier
Manufacturer
AD [Analog Devices]
Datasheet

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a
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
+IN
–IN
NULL
ELECTRONICALLY ADJUSTED ON CHIP
FOR MINIMUM OFFSET VOLTAGE
NULL
Precision Low-Voltage Micropower
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.
V
OS
8-Lead Epoxy Mini-DIP
NULL
Operational Amplifier
PIN CONNECTIONS
8-Lead Hermetic DIP
–IN
+IN
V–
NC = NO CONNECT
1
2
3
4
8-Lead SO
(P-Suffix)
(Z-Suffix)
(S-Suffix)
8
7
6
5
NC
V+
OUT
V
OS
NULL
V+
OUTPUT
V–
OP90

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OP90AZ/883 Summary of contents

Page 1

GENERAL DESCRIPTION The OP90 is a high performance, micropower op amp that operates from a single supply of 1 from dual supplies of ± 0 ± The input voltage range ...

Page 2

OP90 –SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter Symbol Conditions INPUT OFFSET VOLTAGE V OS INPUT OFFSET CURRENT I OS INPUT BIAS CURRENT I B LARGE-SIGNAL VOLTAGE GAIN INPUT VOLTAGE RANGE IVR ...

Page 3

ELECTRICAL CHARACTERISTICS Parameter Symbol INPUT OFFSET VOLTAGE V OS AVERAGE INPUT OFFSET VOLTAGE DRIFT TCV INPUT OFFSET CURRENT I OS INPUT BIAS CURRENT I B LARGE-SIGNAL VOLTAGE GAIN INPUT VOLTAGE RANGE IVR OUTPUT VOLTAGE SWING V ...

Page 4

OP90 ELECTRICAL CHARACTERISTICS Parameter Symbol Conditions INPUT OFFSET VOLTAGE V OS AVERAGE INPUT OFFSET VOLTAGE DRIFT TCV INPUT OFFSET CURRENT I OS INPUT BIAS CURRENT I B LARGE-SIGNAL A VO VOLTAGE GAIN A VO INPUT VOLTAGE RANGE IVR OUTPUT VOLTAGE ...

Page 5

... Not for new design, obsolete April 2002. Unit JC °C/W 16 °C/W 43 °C specified for JA OP90 ORDERING GUIDE Package Options Operating CERDIP Plastic Temperature 8-Lead 8-Lead Range OP90AZ/883 MIL OP90EZ IND OP90GP XIND OP90GS XIND WARNING! ESD SENSITIVE DEVICE ...

Page 6

OP90 –Typical Performance Characteristics 100 V = 15V –75 –50 – 100 125 TEMPERATURE – LOAD 15V ...

Page 7

NEGATIVE SUPPLY 100 80 POSITIVE SUPPLY 100 1k FREQUENCY – Hz 100 V = 15V 0.1 0 100 1k ...

Page 8

OP90 1000 2000 3000 4000 HOURS Input Voltage Protection The OP90 uses a PNP input stage with protection resistors in series with the inverting and noninverting inputs. The high breakdown of the PNP transistors ...

Page 9

Single Op Amp Full-Wave Rectifier Figure 7 shows a full-wave rectifier circuit that provides the absolute value of input signals up to ±2.5 V even though operated from a single 5 V supply. For negative inputs, the amplifier acts as ...

Page 10

OP90 Micropower Voltage-Controlled Oscillator Two OP90s in combination with an inexpensive quad CMOS switch comprise the precision VCO of Figure 10. This circuit provides triangle and square wave outputs and draws only 50 µA from a single 5 V supply. ...

Page 11

Single-Supply Current Monitor Current monitoring essentially consists of amplifying the voltage drop across a resistor placed in a series with the current to be measured. The difficulty is that only small voltage drops can be tolerated and with low precision ...

Page 12

PDIP Package (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) PIN 1 0.100 (2.54) 0.300 (7.62) BSC 0.060 (1.52) 0.210 0.015 (0.38) (5.33) MAX 0.130 0.160 (4.06) (3.30) MIN 0.115 (2.93) SEATING ...

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