STMicroelectronics TS971, TS972, TS974 Technical data

TS971-TS972-TS974

Output Rail-to-Rail Very Low Noise Operational Amplifier

■ Rail-to-rail output voltage swing (±2.4V @
= ±2.5V)

V

cc

■ Very low noise level: 4nV/√Hz

■ Ultra low distortion: 0.003%

■ High dynamic features (12mHz, 4V/µs)

■ Operating range: 2.7V to 10V

■ ESD protection (2kV)

■ Latch-up immunity (class A)

■ Available in SOT23-5 & 3x3 QFN8

micropackage

Description

The TS97x family operational amplifiers is able to
operate with voltages as low as ±1.35V and fea­turing output rail-to-rail signal swing. The TS97x
boasts characteristics that make them particularly
well suited for portable and battery-supplied
equipment. Very low noise and low distortion char­acteristics make them ideal for audio pre-amplifi­cation.

The TS971 is housed in the space-saving 5 pins
SOT23 package which simplifies the board design
because of the ability to be placed everywhere
(outside dimensions are 2.8mm x 2.9mm).

Applications

■ Portable equipment (CD players, PDA)

■ Portable communications (cell phones,

pagers)

■ Instrumentation & sensoring

■ Professional audio circuits

Pin Connections (top view)

TS971ILT

Output

1

V

2

DD

Non-inverting input

3

TS971ID-TS971IDT

1

N.C.

Inverting Input 1

Non-inverting Input 1

2

-

+

3

V

4

DD

TS972IN-TS972ID-TS972IDT-TS972IPT

Inverting Input 1

Non-inverting Input 1

-

2

+

3

V

45

DD

1

Output 1

TS972IQT: QFN8

Output 1

Output 1

1

1

2

Inverting Input 1

Inverting Input 1

Non Inverting Input 1

Non Inverting Input 1

2

3

3

45

45

VDD

VDD

5

4

8

7

-

6

+

8

8

7

7

6

6

V

CC

Inverting input

N.C.

8

V

7

CC

6

Output 2

N.C.

5

V

CC

Output 2

Inverting Input 2

Non-inverting Input 2

VCC

VCC

Output 2

Output 2

Inverting Input 2

Inverting Input 2

Non Inverting Input 2

Non Inverting Input 2

TS974IN-TS974ID-TS974IDT-TS974IPT

Output 4

Output 1

Inverting Input 1

Non-inverting Input 1

V

Non-inverting Input 2

Inverting Input 2

Output 2

1

2

-

+

3

4

CC

5

+

-

6

7

14

13

-

+

12

11

10

+

­9

8

Inverting Input 4

Non-inverting Input 4

V

DD

Non-inverting Input 3

Inverting Input 3

Output 3

May 2005 Revision 2 1/15

TS971-TS972-TS974

Order Codes

Part Number Temperature Range Package Packaging Marking

TS971ID/IDT
TS971ILT SOT23-5L Tape & Reel K120
TS972IN DIP Tube
TS972ID/IDT SO Tube or Tape & Reel

TS972IPT

-40°C, +125°C

TS972IQT

TS974IN DIP Tube
TS974ID/IDT SO Tube or Tape & Reel

TS974IPT

(Thin Shrink Outline Package)

(dual micro lead frame package)

(Thin Shrink Outline Package)

SO Tube or Tape & Reel

TSSOP

QFN

TSSOP

Tape & Reel

Tape & Reel

Tape & Reel

2/15

TS971-TS972-TS974 Absolute Maximum Ratings

1 Absolute Maximum Ratings

Table 1: Key parameters and their absolute maximum ratings

Symbol Parameter Value Unit

V

T

T

Supply voltage

CC

V

Differential Input Voltage

id

V

Input Voltage

in

Operating Free Air Temperature Range

oper

Storage Temperature Range

stg

T

Maximum Junction Temperature

j

Thermal Resistance Junction to Ambient 4
SOT23-5

thja

QFN8
SO8

R

SO14
TSSOP8
TSSOP14

HBM: Human Body Model

ESD

MM: Machine Model
CDM: Charged Device Model 1.5 kV
Lead Temperature (soldering, 10sec) 260 °C

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

2) Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.

3) The magnitude of input and output voltages must never exceed VCC +0.3V.

4) Short-circuits can cause excessive heating and destructive dissipation.

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

6) 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 < 5

1

2

3

5

6

Ω), into pin to pin of device.

12 V

±VCC V

Vdd-0.3 to Vcc+0.3 V

-40 to +125 °C

-65 to +150

150 °C

250

°C/W

50
125
103
120
100

2kV

200 V

Table 2: Operating Conditions

Symbol Parameter Value Unit

V

V

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

3/15

Supply voltage

CC

Common Mode Input Voltage Range

icm

2.7 to 10 V

+1.15 to VCC -1.15

V

DD

V

TS971-TS972-TS974 Electrical Characteristics

2 Electrical Characteristics

Table 3: V

= +2.5V, V

CC

Symbol Parameter Min. Typ. Max. Unit

Input Offset Voltage

V

io

T

≤ T

≤ T

amb

= 0V, Vo = 0V

= 0V, Vo = 0V

DV

min

Input Offset Voltage Drift

io

V

icm

Input Offset Current

I

io

V

icm

Input Bias Current

I

V

ib

V

icm

CMR

SVR

A

vd

V

OH

V

OL

I

source

I

sink

I

cc

GBP

SR

∅m

Gm

e

THD

n

= 0V, Vo = 0V

icm

≤ T

T

min

amb

≤ T

Common Mode Input Voltage Range

Common Mode Rejection Ratio
V

= ±1.35V

icm

Supply Voltage Rejection Ratio
Vcc = ±2V to ±3V 60 70

Large Signal Voltage Gain RL = 2kΩ

High Level Output Voltage RL = 2kΩ

Low Level Output Voltage RL = 2kΩ

Output Source Current

Output Sink Current

Supply Current - per amplifier
Unity gain - No load 2 2.8

Gain Bandwidth Product
f = 100kHz R

Slew Rate

= 1, Vin = ±1V

A

V

Phase Margin at Unit Gain R

Gain Margin R

Equivalent Input Noise Voltage
f = 100kHz 4

Total Harmonic Distortion
f = 1KHz

, A

v

= -2.5V, T

DD

max

max

= 25°C (unless otherwise specified)

amb

= 2kΩ, CL = 100pF

L

= 2kΩ, CL =100pF

L

= 2kΩ, CL =100pF

L

= -1 RL =10kΩ

157mV

µV/°C

5

nA

10 150

nA
200
200

750

1000

-1.35 1.35 V

dB

60 85

dB

70 80 dB

22.4 V

-2.4 -2 V

1.5 mA

100 mA

mA

MHz

8.5 12

V/

µs

2.8 4

60 Degrees

10 dB

nV

-----------­Hz

%

0.003

4/15

TS971-TS972-TS974 Electrical Characteristics

Figure 1: Input offset voltage distribution

Figure 2: Voltage gain & phase vs. frequency

Figure 4: Voltage gain & phase vs. frequency

Figure 5: THD vs. Vout

Figure 3: THD vs. Vout

5/15

Figure 6: THD vs. frequency