ST TS861, TS862, TS864 User Manual

Features

TS861, TS862, TS864

Rail-to-rail micropower BiCMOS comparators

■ Ultra low current consumption (6 µA/comp at

V

=2.7V)

CC

■ Rail to rail CMOS inputs

■ Push pull outputs

■ Supply operation from 2.7 to 10 V

■ Low propagation delay

■ ESD protection (2 kV)

■ Latch-up immunity (class A)

■ Available in SOT23-5 micropackage

Applications

■ Battery-powered systems such as alarms

■ Portable communication systems

■ Smoke/gas/fire detectors

■ Portable computers

Description

The TS86x (single, dual and quad) is a rail-to-rail
comparator characterized for 2.7 to 10 V
operation over -40° C to +85° C temperature
ranges. It exhibits an excellent speed-to-power
ratio, featuring a current consumption of 6 μA per
comparator and a response time of 500 ns at

2.7 V for a 100 mV overdrive.

Due to its ultra-low power consumption and its
availability in a tiny package, the TS86x
comparator family is perfectly suited to battery­powered systems. The output stage is designed
with a push-pull structure allowing a direct
connection to the microcontroller without
additional pull-up resistors.

Output

Non-inverting input

Inverting input

Inverting input

Non-inverting input

Non-inverting input

Output 1

Output 1

Inverting input 1

Inverting input 1

Non-inverting input 1

Non-inverting input 1

SO-14, TSSOP14 (quad)

Output 2

Output 2

Output 1

Output 1

Vcc+

Vcc+

Inverting input 1

Inverting input 1

Non-inverting input 1

Non-inverting input 1

Inverting input 2

Inverting input 2

Non-inverting input 2

Non-inverting input 2

SOT23-5

5

4

Vcc-

1

2

+-

3

SO-8 (single)

1

NC 8

1

NC

-

-

2

2

+

+-+

3

3

Vcc-

Vcc-

4

4

8

7

7

6

6

5

5

SO-8, TSSOP8 (dual)

8

8

7

7

6

6

-

-

+

+-+

5

5

14

14

13

13

12

12

11

11

+

+-+

-

-

10

10

9

9

+

+-+

-

­8

8

Vcc-

Vcc-

1

1

-

-

2

2

+

+-+

3

3

4

4

1

1

2

2

3

3

-

-

4

4

+

+-+

5

5

-

-

6

6

+

+-+

7

7

Vcc+

Inverting input

NC

NC

Vcc+

Vcc+

Output

Output

NC

NC

Vcc+

Vcc+

Output 2

Output 2

Inverting input 2

Inverting input 2

Non-inverting input 2

Non-inverting input 2

Output 3

Output 3

Output 4

Output 4

Vcc-

Vcc-

Non-inverting input 4

Non-inverting input 4

Inverting input 4

Inverting input 4

Non-inverting input 3

Non-inverting input 3

Inverting input 3

Inverting input 3

April 2009 Doc ID 6422 Rev 2 1/19

www.st.com

19

Absolute maximum ratings and operating conditions TS861, TS862, TS864

1 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings

Symbol Parameter Value Unit

V

V

V

Supply voltage

CC

Differential Input Voltage

ID

Input Voltage Range

IN

Thermal resistance junction to ambient

SOT23-5

R

THJA

SO8
SO14
TSSOP8
TSSOP14

Thermal resistance junction to case

SOT23-5

R

THJC

SO8
SO14
TSSOP8
TSSOP14

T

T

LEAD

ESD

Storage temperature range -65 to +150 °C

STG

T

Maximum junction temperature 150 °C

J

Lead temperature (soldering, 10 sec) 260 °C

Human body model (HBM)
Machine model (MM)

Latch-up immunity Class A

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

2. Differential voltages are 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. These values are typical.

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

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.

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

(1)

(3)

(6)

(2)

(5)

(4)

(4)

12 V

±12 V

-0.3 to 12.3 V

250
125
105

°C/W

120
100

81
40
31

°C/W

37
32

2

kV

200

V

Table 2. Operating conditions

Symbol Parameter Value Unit

V

V

T

Supply voltage 2.7 to 10 V

CC

Common mode input voltage range V

ICM

Operating free air temperature range -40 to + 85 °C

Oper

2/19 Doc ID 6422 Rev 2

CC

-

- 0.3 to V

+

+ 0.3 V

CC

TS861, TS862, TS864 Electrical characteristics

2 Electrical characteristics

Table 3. Electrical characteristics at VCC = 2.7 V, T

(unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

Input offset voltage

TS861/2/4

V

IO

ΔV

IO

I

IO

I

IB

V

OH

V

OL

A

VD

CMR

SVR

I

CC

T

PLH

T

PHL

Tmin<T<Tmax
TS861/2/4A
Tmin<T<Tmax

Input offset voltage drift 6 μV/°C

Input offset current

(1)

Tmin<T<Tmax

Input bias current

(1)

Tmin<T<Tmax

High level output voltage

I

SOURCE

=2.5mA

Tmin<T<Tmax

Low level output voltage

=2.5mA

I

SINK

Tmin<T<Tmax

Large signal voltage gain

(2)

Common mode rejection ratio

0 < V

< 2.7 V 65

ICM

Supply voltage rejection ratio

0 < V

CC

< 10V

Supply current per comparator

no load, output low
no load, output high

Propagation delay from output low to output high

= 1.35 V, f = 10 kHz, CL=50pF

V

ICM

overdrive = 10 mV
overdrive = 100 mV

Propagation delay from output high to output low

= 1.35 V, f = 10 kHz, CL=50pF

V

ICM

overdrive = 10 mV
overdrive = 100 mV

amb

= 25° C

2.35

2.15

3

15
18

3

7

mV

10

1150

300

1300

600

pA

pA

2.45

0.2 0.35

0.45

240 dB

dB

80

6

12

8

14

dB

μA

1.5

0.6

1.5

0.5

V

V

µs

µs

Doc ID 6422 Rev 2 3/19

Electrical characteristics TS861, TS862, TS864

Table 3. Electrical characteristics at VCC = 2.7 V, T

amb

= 25° C

(unless otherwise specified) (continued)

Symbol Parameter Min. Typ. Max. Unit

Fall time

T

F

f = 10 kHz, C

Rise time

T

R

f = 10 kHz, C

1. Maximum values including unavoidable inaccuracies of the industrial tests.

2. Design evaluation.

= 50 pF, overdrive = 100 mV 20 ns

L

= 50 pF, overdrive = 100 mV

L

20 ns

Note: Limits are 100% production tested at 25° C. Limits over temperature are guaranteed through

correlation and by design.

4/19 Doc ID 6422 Rev 2

TS861, TS862, TS864 Electrical characteristics

Table 4. Electrical characteristics at V

CC

= 5 V, T

amb

= 25° C

(unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

Input offset voltage

V

IO

ΔV

I

IO

I

IB

V

OH

V

OL

A

VD

CMR

SVR

I

CC

TS861/2/4
Tmin<T<Tmax
TS861/2/4A
Tmin<T<Tmax

Input offset voltage drift 6 μV/°C

IO

Input offset current

(1)

Tmin<T<Tmax

Input bias current

(1)

Tmin<T<Tmax

High level output voltage

I

SOURCE

=5mA

Tmin<T<Tmax

4.6

4.45

Low level output voltage

I

=5mA

SINK

Tmin<T<Tmax

Large signal voltage gain

(2)

Common mode rejection ratio

0 < V

< 5 V 70

ICM

Supply voltage rejection ratio

2.7 < V

< 10 V 80

CC

Supply current per comparator

no load, output low
no load, output high

3

15
18

3

mV

7

10

1150

300

1300

600

pA

pA

4.8

0.2 0.4

0.55

240 dB

dB

dB

6

12

8

14

μA

V

V

Propagation delay from output low to output high

= 2.5 V, f = 10 kHz, CL=50pF

V

T

T

PLH

PHL

T

ICM

overdrive = 10 mV
overdrive = 100 mV

Propagation delay from output high to output low
V

= 2.5 V, f = 10 kHz, CL=50pF

ICM

overdrive = 10 mV
overdrive = 100 mV

Fall time

F

2

0.5

2

0.4

f = 10 kHz, CL= 50 pF, overdrive = 100 mV 20 ns

Rise time

T

R

f = 10 kHz, CL= 50 pF, overdrive = 100 mV 20 ns

1. Maximum values including unavoidable inaccuracies of the industrial test.

2. Design evaluation.

Note: Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through

correlation and by design.

Doc ID 6422 Rev 2 5/19

µs

µs

Electrical characteristics TS861, TS862, TS864

Table 5. Electrical characteristics at V

= +10 V, T

CC

amb

= 25° C

(unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

V

ΔV

Input offset voltage (V

IO

TS861/2/4
Tmin<T<Tmax

Input offset voltage drift 6 μV/°C

IO

Input offset current

I

IO

I

IB

Tmin<T<Tmax

Input bias current

Tmin<T<Tmax

(1)

(1)

= VCC / 2)

ICM

315

18

1150

300

1300

600

High level output voltage

V

OH

I

SOURCE

Tmin<T<Tmax

=5mA

9.6

9.45

9.8

Low level output voltage

V

OL

A

VD

CMR

SVR

=5mA

I

SINK

Tmin<T<Tmax

Large signal voltage gain

(2)

Common mode rejection ratio

0 < V

< 10 V 75

ICM

Supply voltage rejection ratio

2.7 < V

< 10V 80

CC

0.2 0.4

0.55

240 dB

Supply current per comparator

I

CC

no load, output low
no load, output high

10

7

14
16

Propagation delay from output low to output high

= 5 V, f = 10 kHz, CL=50pF

V

T

PLH

ICM

overdrive = 10 mV
overdrive = 100 mV

3

0.5

Propagation delay from output high to output low

= 5 V, f = 10 kHz, CL=50pF

V

F

ICM

overdrive = 10 mV
overdrive = 100 mV

Fall time

f = 10 kHz, C

L

Rise time

f = 10 kHz, C

L

2.6

0.4

= 50 pF, overdrive = 100 mV 20 ns

= 50 pF, overdrive = 100 mV 20 ns

T

PHL

T

T

R

1. Maximum values including unavoidable inaccuracies of the industrial test.

2. Design evaluation.

Note: Limits are 100% production tested at 25° C. Limits over temperature are guaranteed through

correlation and by design.

mV

pA

pA

V

V

dB

dB

μA

µs

µs

6/19 Doc ID 6422 Rev 2