ST TS391H User Manual

TS391H

High temperature low power single voltage comparator

Features

Wafer form

■Wide single supply voltage range or dual supplies +2 V to +36 V or ±1 V to ±18 V

■Very low supply current (0.2 mA) independent of supply voltage (1 mW/comparator at +5 V)

■Low input bias current: 25 nA typ.

■Low input offset current: ±5 nA typ.

■Low input offset voltage: ±1 mV typ.

■Input common-mode voltage range includes ground

■Low output saturation voltage: 250 mV typ. (Io = 4 mA)

■Differential input voltage range equal to the supply voltage

■TTL, DTL, ECL, CMOS compatible outputs

Description

The TS391H is a low power voltage comparator designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.

This comparator also has a unique characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage.

March 2011

Doc ID 018583 Rev 1

1/8

www.st.com

Schematic diagram	TS391H

1 Schematic diagram

Figure 1. Schematic diagram

	VCC
3.5 μA	100 μA	3.5 μA	100 μ A

Non-inverting

input

VO

VCC

VCC

Inverting input

VCC

AM06149

Figure 2.

Pad locations and coordinates

Year

Name

Pad placement

Pad dimensions

E+

Line

VCC+

(opening)

Y

X

Y

X

Y

VCC-

OUT

+365

-250

100

100

X

VCC-

-45

-270

100

100

E-

-400

-250

100

100

VCC-

-425

+90

100

100

E-

VCC-

OUT

E+

-395

+275

100

100

VCC+

+415

+260

100

100

The coordinate of origin is at the centre of the die.

All dimensions are in micrometers (µm).

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TS391H	Absolute maximum ratings and operating conditions

2 Absolute maximum ratings and operating conditions

Table 1.	Absolute maximum ratings (AMR)
Symbol	Parameter	Value	Unit
VCC	Supply voltage	±18 or 36	V
Vid	Differential input voltage	±36	V
Vi	Input voltage	-0.3 to +36	V
	Output short-circuit to ground(1)	Infinite
Tj	Maximum junction temperature	+160	°C
Rthja	Thermal resistance junction to ambient(2)	250	°C/W
R	Thermal resistance junction to case (2)	81	°C/W
thjc
Tstg	Storage temperature range	-65 to +150	°C
	Human body model (HBM)(3)	1500
ESD	Machine model (MM)(4)	100	V
	Charged device model (CDM)(5)	1000

1.Short-circuits from the output to VCC+ can cause excessive heating and potential destruction. The maximum output current is approximately 20 mA independent of the magnitude of VCC+.

2.Short-circuits can cause excessive heating. These values are typical.

3.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.

4.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.

5.Charged device model: all pins and package are charged together to the specified voltage and then discharged directly to ground through only one pin. This is done for all pins.

Table 2.	Operating conditions
Symbol					Parameter	Value		Unit
VCC	Supply voltage					2 to 36		V
						±1 to ±18
	Input common mode voltage range (1)
Vicm	Tamb = 25°C					0 to VCC+ -1.5		V
	T	min	≤ T	amb	≤ T	0 to V	+ -2
					max		CC
Toper	Operating free-air temperature range					-40 to +150		°C

1.The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode voltage range is VCC+ -1.5 V, but either or both inputs can go to +30 V without damage.

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