Micropower RRIO Operational Amplifier

ADA4092-4

Rev. B

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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

PIN CONFIGURATION

ADA4092-4

1

2

3

4

5

6

7

–INA

+INA

+V

OUTB

–INB

+INB

OUTA

14

13

12

11

10

9

8

–IND

+IND

–V

OUTC

–INC

+INC

OUTD

TOP VIEW

(Not to Scale)

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

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 telecom-

munications 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, piezo-

electric, 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).

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

Family

Rail-to-Rail I/O

RRIO

Precision

PJFET

Low

Noise

Single

OP1177

Dual

ADA4091-2

AD8682

OP2177

Quad

ADA4092-4

ADA4091-4

AD8684

OP4177