ST TS321 User Manual

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■ Large output voltage swing:

■ 0 to 3.5V min. (@V

CC

= 5V)

■ Low supply current: 500µA

■ Low input bias current: 20nA

■ Low input offset voltage: 2mV max.

■ Wide power supply range:

■ Single supply: +3V to +30V

■ Dual supplies: ±1.5V to ±15V

■ Stable with high capacitive loads

Description

The TS321 is intended for cost-sensitive applications where space saving is of great importance. This bipolar op-amp offers the benefits of a reduced component size (SOT23-5 package), with specifications that match (or are better) industry standard devices (like the popular LM358A, LM324, etc.). The TS321 has an input common mode range (V and therefore can be employed in single supply applications.

) that includes ground,

icm

TS321

Low Power Single Operational Amplifier

D SO-8

(Plastic Micropackage

L SOT23-5

(Plastic Package)

Pin connections (top view)

N.C.

8

7

V

6

Output

N.C.

+

V

5

CC

Inverting input

4

+

CC

Inverting input

Non-inverting input

Output

V

CC

Non-inverting input

N.C.

1

2

-

+

3

V

45

-

CC

1

-

2

3

Order Codes

Part Number

TS321ILT

TS321ID/IDT SO8 Tube or Tape & Reel 321I

TS321AILT SOT23-5L Tape & Reel K402

TS321AID/AIDT SO8 Tube or Tape & Reel 321AI

TS321IYLT

TS321AIYLT

TS321IYD/IYDT

TS321AIYD/AIYDT

December 2005 Rev. 4 1/12

Temperature

Range

-40°C, +125°C

Package Packaging Marking

SOT23-5L Tape & Reel K401

K406

SOT23-5L (automotive grade level) Tape & Reel

SO-8 (automotive grade level) Tube or Tape & Reel

www.st.com

12

Typical Application Schematics TS321

t

1 Typical Application Schematics

Figure 1. Typical application schematics

V

CC

Inverting

input

Non-inverting

input

Q2

Q8 Q9

6mA

Q3

A

4

m

C

Q4Q1

Q10

Q11

100

A

m

Q12

Q5

Q7

50

m

Q13

A

Q6

R

SC

GND

Outpu

2/12

TS321 Absolute Maximum Ratings

2 Absolute Maximum Ratings

Table 1. Key parameters and their absolute maximum ratings

Symbol Parameter Value Unit

V

Supply Voltage ±16 to 32 V

CC

Vi Input Voltage -0.3 to +32 V

V

T

R

Differential Input Voltage +32 V

id

Output Short-circuit Duration - note

I

Input Current - note

in

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

oper

Storage Temperature Range -65 to +150 °C

stg

(2)

Thermal Resistance Junction to Ambient SOT23-5

thja

(1)

(3)

SO8

Infinite

50 mA

250 125

°C/W

Thermal Resistance Junction to Case

R

ESD

1. Short-circuits from the output to VCC can cause excessive heating if VCC > 15V. The maximum output current is approximately 40mA independent of the magnitude of VCC.

2. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-amps to go to the V negative. This is not destructive and normal output will set up again for input voltage higher than -0.3V.

3. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-circuit on all amplifiers. All values are typical.

4. Human body model, 100pF discharged through a 1.5kΩ resistor into pin of device.

5. Machine model ESD, a 200pF cap is charged to the specified voltage, then discharged directly into the IC with no external series resistor (internal resistor < 5Ω), into pin to pin of device.

SOT23-5

thjc

SO8

HBM: Human Body Model

MM: Machine Model

81 40

(4)

(5)

voltage level (or to ground for a large overdrive) for the time duration than an input is driven

CC

300 V

200 V

°C/W

3/12

Electrical Characteristics TS321

3 Electrical Characteristics

Table 2. V

+

= +5V, V

cc

-

= Ground, Vo = 1.4V, T

cc

= +25°C (unless otherwise specified)

amb

Symbol Parameter Conditions Min. Typ. Max. Unit

0.5 4 2 5

mV

3

230

50

20 150

200

nA

5025100 V/mV

dB

500 600 600

800 900 900

µA

1000

0 0

VCC -1.5

V

-2

CC

dB

mA

10 12

26

27

20 50

27

28

mA

µA

V

I

io

I

ib

A

vd

SVR

I

CC

V

icm

CMR

I

source

I

sink

I

o

V

OH

T

= +25°C

amb

TS321A

Input Offset Voltage

io

(1)

T

min.

≤ T

amb

≤ T

max.

TS321A

= +25°C

T

Input Offset Current

Input Bias Current

(2)

Large Signal Voltage Gain

Supply Voltage Rejection Ratio

Supply Current, no load

Common Mode Input Voltage Range

(3)

Common Mode Rejection Ratio

Output Current Source

Output Sink Current

amb

T

≤ T

min.

T

= +25°C

amb

T

≤ T

min.

+

V

= +15V, RL = 2kΩ, Vo = 1.4V to 11.4V

CC

T

= +25°C

amb

T

≤ T

min.

R

≤ 10kΩ

s

+

= 5 to 30V

V

CC

T

= +25°C 65 110

amb

T

= +25°C, VCC = +5V

amb

V

= +30V

CC

T

≤ T

min.

V

= +30

CC

V

= +30V

CC

= +25°C

T

amb

T

≤ T

min.

R

≤ 10kΩ

s

= +25°C 65 85

T

amb

= +1V

V

id

= +15V, Vo = +2V 20 40

V

CC

V

= -1V

id

= +15V, Vo = +2V

V

CC

V

= +15V, Vo = +0.2V

CC

amb

≤ T

max.

max

max.

, VCC = +5V

max.

Short Circuit to Ground VCC = +15V 40 60 mA

V

= +30V

CC

= +25°C, RL = 2kΩ

T

amb

High Level Output Voltage

T

≤ T

min.

T

= +25°C, RL = 10kΩ

amb

T

≤ T

min.

amb

≤ T

max.

25.5

26.5 VCC = +5V, RL = 2kΩ T

= +25°C

amb

T

≤ T

min.

R

= 10kΩ

V

Low Level Output

OL

Voltage

T T

L

amb

min.

= +25°C ≤ T

amb

≤ T

max.

3.5 3

515

20

mV

V

4/12