ST TS861, TS862, TS864 User Manual

TS861, TS862, TS864

Rail-to-rail micropower BiCMOS comparators

Features

■Ultra low current consumption (6 µA/comp at VCC = 2.7 V)

■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.

SOT23-5

Output	1	5	Vcc+
Vcc-	2	-
	+
Non-inverting input	3	4	Inverting input

SO-8 (single)

NC 1			8	NC
Inverting input	2	-	7	Vcc+
Non-inverting input	3	+	6	Output
Vcc-	4		5	NC

SO-8, TSSOP8 (dual)

Output 1

1

8

Vcc+

Inverting input 1	2						7		Output 2
			-
Non-inverting input 1	3		+	-			6		Inverting input 2
Vcc-	4			+				5	Non-inverting input 2

SO-14, TSSOP14 (quad)

Output 2	1			14	Output 3
Output 1	2			13	Output 4
Vcc+	3			12	Vcc-
Inverting input 1	4	-	+	11	Non-inverting input 4
Non-inverting input 1	5	+	-	10	Inverting input 4
Inverting input 2	6	-	+	9	Non-inverting input 3
Non-inverting input 2	7	+	-	8	Inverting input 3

April 2009

Doc ID 6422 Rev 2

1/19

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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
	VCC	Supply voltage (1)	12	V
	VID	Differential Input Voltage (2)	±12	V
	VIN	Input Voltage Range (3)	-0.3 to 12.3	V
		Thermal resistance junction to ambient(4)
		SOT23-5	250
	RTHJA	SO8	125	°C/W
		SO14	105
		TSSOP8	120
		TSSOP14	100
		Thermal resistance junction to case (4)
		SOT23-5	81
	RTHJC	SO8	40	°C/W
		SO14	31
		TSSOP8	37
		TSSOP14	32
	TSTG	Storage temperature range	-65 to +150	°C
	TJ	Maximum junction temperature	150	°C
	TLEAD	Lead temperature (soldering, 10 sec)	260	°C
	ESD	Human body model (HBM) (5)	2	kV
		Machine model (MM) (6)	200	V
		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.

Table 2.	Operating conditions
Symbol	Parameter	Value	Unit
VCC	Supply voltage	2.7 to 10	V
VICM	Common mode input voltage range	VCC- - 0.3 to VCC+ + 0.3	V
TOper	Operating free air temperature range	-40 to + 85	°C

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TS861, TS862, TS864	Electrical characteristics

2 Electrical characteristics

Table 3.		Electrical characteristics at VCC = 2.7 V, Tamb = 25° C
		(unless otherwise specified)
Symbol		Parameter	Min.		Typ.	Max.	Unit
	Input offset voltage
VIO	TS861/2/4				3	15	mV
	Tmin<T<Tmax					18
	TS861/2/4A				3	7
	Tmin<T<Tmax					10
VIO	Input offset voltage drift				6		μV/°C
IIO	Input offset current(1)				1	150	pA
	Tmin<T<Tmax					300
IIB	Input bias current (1)				1	300	pA
	Tmin<T<Tmax					600
	High level output voltage
VOH	I	=2.5mA	2.35		2.45		V
		SOURCE
	Tmin<T<Tmax		2.15
	Low level output voltage
VOL	ISINK = 2.5 mA				0.2	0.35	V
	Tmin<T<Tmax					0.45
A	Large signal voltage gain(2)				240		dB
VD
CMR	Common mode rejection ratio						dB
	0 < VICM < 2.7 V				65
SVR	Supply voltage rejection ratio						dB
	0 < VCC < 10V				80
	Supply current per comparator
ICC	no load, output low				6	12	μA
	no load, output high				8	14
	Propagation delay from output low to output high
TPLH	VICM = 1.35 V, f = 10 kHz, CL = 50 pF
	overdrive = 10 mV				1.5		µs
	overdrive = 100 mV				0.6
	Propagation delay from output high to output low
TPHL	VICM = 1.35 V, f = 10 kHz, CL = 50 pF
	overdrive = 10 mV				1.5		µs
	overdrive = 100 mV				0.5

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Electrical characteristics						TS861, TS862, TS864
	Table 3.	Electrical characteristics at VCC = 2.7 V, Tamb = 25° C
		(unless otherwise specified)	(continued)
	Symbol	Parameter		Min.		Typ.	Max.	Unit
	TF	Fall time
		f = 10 kHz, CL = 50 pF, overdrive = 100 mV				20		ns
	TR	Rise time
		f = 10 kHz, CL = 50 pF, overdrive = 100 mV				20		ns

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

2.Design evaluation.

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 VCC = 5 V, Tamb = 25° C
		(unless otherwise specified)
	Symbol	Parameter	Min.	Typ.	Max.	Unit
		Input offset voltage
	VIO	TS861/2/4		3	15	mV
		Tmin<T<Tmax			18
		TS861/2/4A		3	7
		Tmin<T<Tmax			10
	VIO	Input offset voltage drift		6		μV/°C
	IIO	Input offset current(1)		1	150	pA
		Tmin<T<Tmax			300
	IIB	Input bias current (1)		1	300	pA
		Tmin<T<Tmax			600
		High level output voltage
	VOH	ISOURCE = 5 mA	4.6	4.8		V
		Tmin<T<Tmax	4.45
		Low level output voltage
	VOL	ISINK = 5 mA		0.2	0.4	V
		Tmin<T<Tmax			0.55
	A	Large signal voltage gain(2)		240		dB
	VD
	CMR	Common mode rejection ratio				dB
		0 < VICM < 5 V		70
	SVR	Supply voltage rejection ratio				dB
		2.7 < VCC < 10 V		80
		Supply current per comparator
	ICC	no load, output low		6	12	μA
		no load, output high		8	14
		Propagation delay from output low to output high
	TPLH	VICM = 2.5 V, f = 10 kHz, CL = 50 pF
		overdrive = 10 mV		2		µs
		overdrive = 100 mV		0.5
	TPHL	Propagation delay from output high to output low
		VICM = 2.5 V, f = 10 kHz, CL = 50 pF
		overdrive = 10 mV		2		µs
		overdrive = 100 mV		0.4
	TF	Fall time
		f = 10 kHz, CL = 50 pF, overdrive = 100 mV		20		ns
	TR	Rise time
		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.

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Electrical characteristics				TS861, TS862, TS864
	Table 5.	Electrical characteristics at VCC = +10 V, Tamb = 25° C
		(unless otherwise specified)
	Symbol	Parameter	Min.	Typ.	Max.	Unit
	VIO	Input offset voltage (VICM = VCC / 2)				mV
		TS861/2/4		3	15
		Tmin<T<Tmax			18
	VIO	Input offset voltage drift		6		μV/°C
	IIO	Input offset current(1)		1	150	pA
		Tmin<T<Tmax			300
	IIB	Input bias current (1)		1	300	pA
		Tmin<T<Tmax			600
		High level output voltage
	VOH	ISOURCE = 5 mA	9.6	9.8		V
		Tmin<T<Tmax	9.45
		Low level output voltage
	VOL	ISINK = 5 mA		0.2	0.4	V
		Tmin<T<Tmax			0.55
	A	Large signal voltage gain(2)		240		dB
	VD
	CMR	Common mode rejection ratio				dB
		0 < VICM < 10 V		75
	SVR	Supply voltage rejection ratio				dB
		2.7 < VCC < 10V		80
		Supply current per comparator
	ICC	no load, output low		7	14	μA
		no load, output high		10	16
		Propagation delay from output low to output high
	TPLH	VICM = 5 V, f = 10 kHz, CL = 50 pF
		overdrive = 10 mV		3		µs
		overdrive = 100 mV		0.5
		Propagation delay from output high to output low
	TPHL	VICM = 5 V, f = 10 kHz, CL = 50 pF
		overdrive = 10 mV		2.6		µs
		overdrive = 100 mV		0.4
	TF	Fall time
		f = 10 kHz, CL = 50 pF, overdrive = 100 mV		20		ns
	TR	Rise time
		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.

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