Philips LM311NB, LM311D, LM111FE, LM111F, LM211N Datasheet

Philips Semiconductors Linear Products	Product specification

Voltage comparator

LM111/211/311/

LM311B

DESCRIPTION

The LM111 series are voltage comparators that have input currents approximately a hundred times lower than devices like the μA710. They are designed to operate over a wider range of supply voltages; from standard ±15V op amp supplies down to a single 3V supply. Their output is compatible with RTL, DTL, and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching voltages up to 50V at currents as high as 50mA.

Both the inputs and the outputs of the LM111 series can be isolated from system ground, and the output can drive loads referred to ground, the positive supply, or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire-ORed.

Although slower than the μA710 (200ns response time vs 40ns), the devices are also much less prone to spurious oscillations. The LM111 series has the same pin configuration as the μA710 series.

FEATURES

•Operates from single 3V supply (LM311B)

•Maximum input bias current: 150nA (LM311Ð250nA)

•Maximum offset current: 20nA (LM311Ð50nA)

•Differential input voltage range: ±30V

•Power consumption: 135mW at ±15V

•High sensitivityÐ200V/mV

•Zero crossing detector

PIN CONFIGURATION

D, FE, N PACKAGES

GND	1		8	V+
INPUT	2	+	7	OUTPUT
INPUT	3	±	6	BAL/STROBE
V±	4		5	BALANCE

APPLICATIONS

•Precision squarer

•Positive/negative peak detector

•Low voltage adjustable reference supply

•Switching power amplifier

ORDERING INFORMATION

DESCRIPTION	TEMPERATURE RANGE	ORDER CODE	DWG #
8-Pin Plastic Dual In-Line Package (DIP)	-55°C to +125°C	LM111N	0404B
8-Pin Plastic Dual In-Line Package (DIP)	-25°C to +85°C	LM211N	0404B
8-Pin Plastic Small Outline Package (SO)	0 to +70°C	LM311D	0174C
8-Pin Plastic Dual In-Line Package (DIP)	0 to +70°C	LM311N	0404B
8-Pin Plastic Small Outline Package (SO)	-25°C to +85°C	LM211D	0174C
8-Pin Ceramic Dual In-Line Package (CERDIP)	-55°C to +125°C	LM111FE	0580A
8-Pin Plastic Small Outline Package (SO)	0 to +70°C	LM311BD	0174C
8-Pin Plastic Dual In-Line Package (DIP)	0 to +70°C	LM311BN	0404B

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Philips Semiconductors Linear Products	Product specification

Voltage comparator

LM111/211/311/

LM311B

EQUIVALENT SCHEMATIC

BALANCE/		BALANCE
STROBE									V+
R3	R1	R4	R2		R8		R9
300	1.3K	300	1.3K		750		600
			Q8	Q7	Q10
				R5				Q20
							Q11
				70
									Q12
	Q5		R6	R7					Q13
			1.2K	1.2K
							Q19	R10
				Q8				4K	OUTPUT
									Q14
			Q3		Q9			Q18
Q1	D1	D2		Q4	R17		R15		R11
	5V	5V					400
					60				130
				Q2					Q15
INPUTS							R15
				Q23
							450		R12
									600
			Q2		Q22			Q18
				R19	R18	R14		Q17
				250	200	2K			R13
									4
									V±

ABSOLUTE MAXIMUM RATINGS

SYMBOL	PARAMETER	RATING	UNIT
VS	Total supply voltage	36	V
	Output to negative supply voltage:
	LM111/LM211	50	V
	LM311/LM311B	40	V
	Ground to negative supply voltage	30	V
	Differential input voltage	±30	V
VIN	Input voltage1	±15	V
PD MAX	Maximum power dissipation,
	T =25°C (still-air)2
	A
	F package	810	mW
	N package	1190	mW
	D package	780	mW
I	Output short-circuit duration	10	sec
TA	Operating ambient temperature range
	LM111	-55 to +125	°C
	LM211	-25 to +85	°C
	LM311/LM311B	0 to +70	°C
TSTG	Storage temperature range	-65 to +150	°C
TSOLD	Lead soldering temperature	300	°C
	(10sec max)

NOTES:

1.This rating applies for ±15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less.

2.Derate above 25°C, at the following rates: F package at 6.4mW/°C; N package at 9.5mW/°C; D package at 6.2m/W°C

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