ST TS27M2C User Manual

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TS27M2C,I,M

PRECISION LOW POWER

CMOS DUAL OPERATIONAL AMPLIFIERS

■ LOW POWER CONSUMPTION : 150µA/op

■ OUTPUT VOLTAGE CAN SWING TO

GROUND

■ EXCELLENT PHASE MARGIN ON

CAPACITIVE LOADS

■ STABLE AND LOW OFFSET VOLTAGE

■ THREE INPUT OFFSET VOLTAGE

SELECTIONS

DESCRIPTION

These devices are low cost, low power dual oper­ational amplifiers designed to operate with single
or dual supplies. These operational amplifiers use
the ST silicon gate CMOS process allowing an ex­cellent consumption-speed ratio. These series are
ideally suited for low consumption applications.

Three power consumpt ions are av ailable a llowing
to have always the best consumption-speed ratio:

❑ I

= 10µA/amp.: TS27L2 (very low power)

CC

❑ I

= 150µA/amp.: TS27M2 (low power)

CC

❑ I

= 1mA/amp.: TS272 (standard)

CC

These CMOS amplifiers offer very high input im­pedance and extremely low input currents. The
major advantage versus JFET devices is the very
low input currents drift with temperature (see fig­ure 2 ).

ORDER CODE

Part Number Temperature Range

TS27M2C/AC/BC 0°C, +70°C
TS27M2I/AI/BI -40°C, +125°C
TS27M2M/AM/BM -55°C, +125°C

Example : TS27M2ACN

N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
P = Thin Shrink Small Outline Package (TSSOP) - only available

in Tape & Reel (PT)

Package

NDP

•••

•••

•••

N

DIP8

(Plastic Package)

D

SO8

(Plastic Micropackage)

P

TSSOP8

(Thin Shrink Small Outline Package)

PIN CONNECTIONS (top view)

1

2

-

+

3

45

1 - Output 1
2 - Inverting Input 1
3 - Non-inverting Input 1
4 - V
5 - Non-inverting Input 2
6 - Inverting Input 2
7 - Output 2
8 - V

CC

CC

-

+

-

+

8

7

6

November 2001

1/9

TS27M2C,I,M

E

E

Input

differential

Second

stage

Output

stage

Output

CC

V

CC

V

Current

source

x I

BLOCK DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter TS27M2C/AC/BC TS27M2I/AI/BI TS27M2M/AM/BM Unit

+

V

T

T

1. All values, except differential voltage are with respect to network ground terminal.

2. Dif ferential vo l tages are the non-inverting i nput terminal with respect to t he i nverting input terminal.

3. The magnitude of the input and the output voltag es must never exceed the magni tude of the posi tive supply vol tage.

Supply Voltage

CC

V

id Differential Input Voltage

V

Input Voltage

i

I

Output Current for V

o

I

Input Current ±5 mA

in

Operating Free-Air Temperature Range 0 to +70 -40 to +125 -55 to +125 °C

oper

Storage Temperature Range -65 to +150 °C

stg

1)

2)

3)
+

≥ 15V

CC

18 V

±18 V

-0.3 to 18 V
±30 mA

OPERATING CONDITIONS

Symbol Parameter Value Unit

+

V

V

Supply Voltage 3 to 16 V

CC

Common Mode Input Voltage Range

icm

0 to V

CC

+

- 1.5

V

2/9

SCHEMATIC DIAGRAM (for 1/2 TS27M2)

TS27M2C,I,M

15

T

12

T

10

T

11

T

8

T

6

T

Output

7

T

16

T

14

T

13

T

9

T

R1

C1

Input

2

T

5

CC

V

T

1

T

4

T

3

T

27

T

26

T

25

T

24

T

Input

28

T

23

T

2

R

T

17 18

T

19

T

29

T

22

T

21

T

20

T

CC

V

3/9