ANALOG DEVICES ADA4092-4 Service Manual

Micropower RRIO Operational Amplifier

FEATURES

Single-supply operation: 3 V to 30 V
Wide input voltage range
Rail-to-rail output swing
Low supply current: 200 μA/amplifier
Wide bandwidth: 1.4 MHz
High phase margin: 69°
Slew rate: 0.4 V/μs
Low offset voltage: 1.50 mV maximum
No phase reversal
Overvoltage protection (OVP)

25 V above/below supply rails at ±5 V
12 V above/below supply rails at ±15 V

APPLICATIONS

Industrial process control
Battery-powered instrumentation
Power supply control and protection
Telecommunications
Remote sensors
Low voltage strain gage amplifiers
DAC output amplifiers

ADA4092-4

PIN CONFIGURATION

1

OUTA

2

–INA

3

+INA

ADA4092-4

4

+V

TOP VIEW

(Not to S cale)

5

+INB

6

–INB

7

OUTB

Figure 1. 14-Lead TSSOP (RU-14)

14

OUTD

13

–IND

12

+IND

11

–V

10

+INC

9

–INC

8

OUTC

08803-001

GENERAL DESCRIPTION

The ADA4092-4 quad is a micropower, single-supply, 1.4 MHz
bandwidth amplifier featuring rail-to-rail inputs and outputs. It
is guaranteed to operate from a +3 V to +30 V single supply as
well as from ±1.5 V to ±15 V dual supplies.

The ADA4092-4 features a unique input stage that allows the
input voltage to exceed either supply safely without any phase
reversal or latch-up; this is called overvoltage protection (OVP).

Applications for these amplifiers include portable telecom­munications equipment, power supply control and protection,
and interface for transducers with wide output ranges. Sensors
requiring a rail-to-rail input amplifier include Hall effect, piezo­electric, and resistive transducers.

The ability to swing rail-to-rail at both the input and output enables
designers, for example, to build multistage filters in single-supply
systems and to maintain high signal-to-noise ratios (SNR).

Rev. B

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rights of third parties that may result from its use. Specifications subject to change without notice. No
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Trademarks and registered trademarks are the property of their respective owners.

The ADA4092-4 is specified over the extended industrial
temperature range of −40°C to +125°C. The ADA4092-4 is
part of the growing selection of 30 V, low power op amps from
Analog Devices, Inc., see Table 1.

The ADA4092-4 is available in the 14–lead TSSOP surface-mount
package.

Table 1. Low Power, 30 V Operational Amplifiers

RRIO

Family Rail-to-Rail I/O

Single
Dual

ADA4091-2 AD8682 OP2177

Quad ADA4092-4

Precision PJFET

ADA4091-4 AD8684 OP4177

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Tel: [phone] www.analog.com
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OP1177