1

DESCRIPTION

The AMS324 consists of four independent, high gain, internally frequency compensated operational amplifiers

which were designed specifically to operate from a single power supply over a wide range of voltages.

Operation from split power supplies is also possible and the low power supply current drain is independent of

the magnitude of the power supply voltage.

Application areas include transducer amplifiers, DC gain blocks and all the conventional op amp circuits.

FEATURES

PACKAGE INFORMATION

§

Wide range of supply voltages

§

Low supply current drain independent of supply voltage

§

Low input biasing current

§

Low input offset voltage and offset current

§

Input common-mode voltage range includes ground

§

Differential input voltage range equal to the power supply voltage

§

DC voltage gain 100 V/ mV Typ

§

Internally frequency compensation

ELECTRICAL CHARACTERISTICS

AMS324

PARAMETER

TEST CONDITIONS*

MIN

TYP

MAX

UNIT

Vcc =5V to MAX,

25

°C

3

7

mV

Input offset voltage

Full range

9

Average temperature coefficient of

input offset voltage

Full range

7

µV/°C

Vo=1.4V

25

° C

2

50

nA

Input offset current

Full range

150

Average temperature coefficient of

input offset current

Full range

10

pA/

°C

Vo=1.4V

25

°C

-20

-250

nA

Input bias current

Full range

-500

Vcc = 5V to MAX

25

°C

0 to Vcc-1.5

V

Common-mode input voltage range

Full range

0 to Vcc - 2

Ω

25

°C

Vcc-1.5

V

High-level output voltage

Full range

26

Vcc = MAX,

Ω

Full range

27

28

Low-level output voltage

Ω

Full range

5

20

mV

Vcc = 15 V,

25

°C

25

100

V/mV

Large-signal differential voltage

amplification

Vo=1V to 11 V,

Full range

15

CMRR

Common-mode rejection ratio

Vcc = 5V to MAX,

25

°C

65

80

dB

(

Vcc = 5V to MAX

25

°C

65

100

dB

Vo1/Vo2 Crosstalk attenuation

f=1kHz to 20 kHz

25

°C

120

dB

Vcc = 15 V,

25

°C

-20

-30

mA

Output current

Full range

-10

Vcc = 15 V,

25

°C

10

20

Full range

5

°C

12

30

µA

los

Short-circuit output current

Vcc at 5 V,

GND at -5V,Vo=0

25

°C

±40

±60

mA

Icc

Vo = 2.5 V, No load

Full range

1.5

2.4

mA

Supply current (four amplifiers)

Vcc = MAX, Vo =

0.5Vcc, No load

Full range

1.1

3

* All characteristics are measured under open loop conditions with zero common-mode input voltage unless

otherwise specified. "MAX" Vcc for testing purposes is 30 V. Full range is 0

°C to 70 °C

AMS324