STMicroelectronics TS507 Technical data

TS507

High precision rail-to-rail operational amplifier

Features

■ Ultra low offset voltage: 25 µV typ, 100 µV max

■ Rail-to-rail input/output voltage swing

■ Operating from 2.7 V to 5.5 V

■ High speed: 1.9 MHz

■ 45° phase margin with 100 pF

■ Low consumption: 0.8 mA at 2.7 V

■ Very large signal voltage gain: 131 dB

■ High power supply rejection ratio: 105 dB

■ Very high ESD protection 5kV (HBM)

■ Latch-up immunity

■ Available in SOT23-5 micropackage

Applications

■ Battery-powered applications

■ Portable devices

■ Signal conditioning

■ Medical instrumentation

Pin connections (top view)

SOT23-5

VCC

Output

Non Inverting Input Inverting Input

VDD

1

1 2

2

3

VCC

5

4

SO-8

N.C.

Inverting Input

Non Inverting Input

VDD

1

_

2

2 3

3 4

4

_ +

+

N.C.

8

VCC

7

Output

6

N.C.

5

Description

The TS507 is a high performance rail-to-rail input and output amplifier with very low offset voltage. This amplifier uses a new trimming technique that yields ultra low offset volt ages without any need for external zeroing.

The circuit offers very stable electrical characteristics over the entire supply voltage range, and is particularly intended for automotive and industrial applications.

The TS507 is housed in the space-saving 5-pin SOT23 package, making it well suited for batterypowered systems. This micropackage simplifies the PC board design because of its ability to be placed in tight spaces (external dimensions are

2.8 mm x 2.9 mm).

April 2008 Rev 5 1/20

www.st.com

20

Contents TS507

Contents

1 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3

2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Application note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1 Out-of-the-loop compensation technique . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 In-the-loop-compensation technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1 SOT23-5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2 SO-8 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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TS507 Absolute maximum ratings and operating conditions

1 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings (AMR)

Symbol Parameter Value Unit

(3)

(1)

(7)

(2)

(6)

(8)

(4) (5)

6V

±2.5 V

VDD-0.3 to VCC+0.3 V

250

°C/W

125

81

°C/W

40

5kV

300 V

2kV

V

CC

V

id

V

in

T

stg

R

thja

R

thjc

T

ESD

Supply voltage Differential input voltage Input voltage Storage temperature -65 to +150 °C Thermal resistance junction to ambient

SOT23-5 SO-8

Thermal resistance junction to case

SOT23-5 SO-8

Maximum junction temperature 150 °C

j

HBM: human body model MM: machine model CDM: charged device model Latch-up immunity class A

1. Value with respect to VDD pin.

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

3. VCC-Vin must not exceed 6V and Vin must not exceed 6V.

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

5. R

6. Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through a

7. Machine model: A 200pF capacitor is charged to the specified voltage, then discharged directly between

8. Charged device model: all pins and the package are charged together to the specified voltage and then

Table 2. Operating conditions

are typical values.

thja/c

1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.

two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating.

discharged directly to the ground through only one pin. This is done for all pins.

Symbol Parameter Value Unit

V

Supply voltage

CC

Common mode input voltage range VDD to V

icm

Differential input voltage

V

id

(1)

(2)

2.7 to 5.5 V

CC

±2.5 V

Operating free air temperature range

T

oper

TS507C TS507I

1. Value with respect to VDD pin.

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

0 to +85

-40 to +125

V

°C

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Electrical characteristics TS507

2 Electrical characteristics

Table 3. Electrical characteristics at VCC=+5V, VDD=0V, V

R

connected to VCC/2 (unless otherwise specified)

L

icm=VCC

(1)

/2, T

amb

=25°C,

Symbol Parameter Conditions Min. Typ. Max. Unit

DC performance

V

ΔV

CMRR

PSRR

A

V

CC-VOH

V

Input offset voltage

io

/ΔtVio drift vs. temperature T

io

I

Input bias current

ib

I

Input offset current

io

Common mode rejection ratio 20 log (ΔV

icm

Power supply rejection ratio 20 log (ΔV

Large signal voltage gain

vd

CC

High level output voltage drop

Low level output voltage

OL

(2)

/ΔVio)

= 0 to 3.8V, T=25°C

icm

TS507C full temp range TS507I full temp range

V

= 0V to 5V, T=25°C

icm

TS507C full temp range TS507I full temp range

< Top < T

min

max

T = 25°C TS507C full temp range TS507I full temp range

from 0V to 3.8V, T=25°C

V

icm

TS507C full temp range TS507I full temp range

V

from 0V to 5V 96

icm

from 2.7V to 5.5V,

V

CC

V

icm=vcc

/2, T=25°C TS507C full temp range TS507I full temp range

R

= 10kΩ, V

L

= 0.5V to 4.5V

out

Full temp range

= 600Ω, T=25°C

R

L

TS507C full temp range TS507I full temp range

= 10kΩ, T=25°C

R

L

Full Temp range

= 600Ω, T=25°C

R

L

TS507C full temp range TS507I full temp range

= 10kΩ, T=25°C

R

L

Full temp range

94 94 91

91 90 89

99 98

25 100

250 400

450 550

750 1µV/°C 870

75

110 225

35 50

115

105

131

67 95

110

120 415

15

64 90

110

125 415

15

µV

nA

dB

mV

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TS507 Electrical characteristics

Table 3. Electrical characteristics at VCC=+5V, VDD=0V, V

R

connected to VCC/2 (unless otherwise specified)

L

icm=VCC

(1)

/2, T

amb

(continued)

=25°C,

Symbol Parameter Conditions Min. Typ. Max. Unit

V

= V

out

I

sink

TS507C full temp range TS507I full temp range

I

out

I

source

V

= VDD, Vid=1V, T=25°C

out

TS507C full temp range TS507I full temp range

No load, V

I

Supply current (per operator)

CC

(2)

=0 to 5V, T=25°C

V

icm

Full temp range

CC, Vid

out=VCC

=-1V, T=25°C

/2,

74 60 53

90 77 70

104

128

0.85 1.15

1.25

Dynamic performance

=2kΩ, CL= 100pF,

R

GBP Gain bandwidth product

φ

G

Phase margin RL = 2kΩ, CL=100pF 45 Degrees

m

Gain margin RL = 2kΩ, CL=100pF 10 dB

m

SR Slew rate

L

f = 100kHz

= 2kΩ, CL=100pF,

R

L

V

= 1.25V to 3.75V, 10% to

out

1.9 MHz

0.6 V/µs

90%

e

THD+eNTHD + noise

1. All parameter limits at temperatures different from 25° C are guaranteed by correlation.

2. Measurements done at 4 V

Equivalent input noise voltage f = 1kHz 12 nV/√Hz

N

Equivalent input noise current f = 10kHz 1.2 pA/√Hz

i

N

values: V

icm

=0 V, V

f=1kHz, G=1, R V

=3.5V

out

=3.8 V, V

icm

pp

=2kΩ, V

L

=4.2 V, V

icm

=2V,

=5 V.

0.0003 %

mA

5/20

Electrical characteristics TS507

Table 4. Electrical characteristics at VCC=+3.3V, VDD=0V, V

R

connected to VCC/2 (unless otherwise specified)

L

icm=VCC

(1)

/2, T

amb

= 25°C,

Symbol Parameter Conditions Min. Typ. Max. Unit

DC performance

V

io

ΔV

io

I

ib

I

io

CMRR

Input offset voltage

(2)

Vio drift vs. temperature T

Input bias current

Input offset current

Common mode rejection ratio 20 log (ΔV

icm

/ΔVio)

= 0 to 2.1V, T=25°C

icm

TS507C full temp range TS507I full temp range

= 0V to 3.3V, T=25°C

V

icm

TS507C full temp range TS507I full temp range

< Top < T

min

max

T = 25°C TS507C full temp range TS507I full temp range

from 0V to 2.1V 115 dB

V

icm

25 100

250

400

450

550

750 1µV/°C 670

75

145 225

40 45

µV

nA

A

Large signal voltage gain RL = 10kΩ, V

vd

VCC-VOHHigh level output voltage drop

V

I

Low level output voltage

OL

I

sink

out

I

source

Supply current (per operator)

CC

= 600Ω, T=25°C

R

L

TS507C full temp range TS507I full temp range

= 10kΩ, T=25°C

R

L

Full temp range R

= 600Ω, T=25°C

L

TS507C full temp range TS507I full temp range

= 10kΩ, T=25°C

R

L

Full temp range V

= V

out

CC, Vid

TS507C full temp range TS507I full temp range

V

= VDD, Vid=1V, T=25°C

out

TS507C full temp range TS507I full temp range

(2)

No load, V V

icm

out=VCC

=0 to 3.3V, T=25°C

Full temp range

= 0.5V to 2.8V 127 dB

out

59 85

100

110 415

15

57 80

100

115 415

15

=-1V, T=25°C

33

48 26 22

37

56 32 29

/2,

0.81 1.1

1.2

mV

mA

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