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Part: LM311DT
Category:
Description: Voltage Comparators
Company: ST Microelectronics, Inc.
Datasheet: Download LM311DT datasheet File size : 1094 kB
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Datasheet text preview:
LM111 LM211 - LM311
VOLTAGE COMPARATORS
. . . . . .
MAXIMUM INPUT CURRENT : 150nA MAXIMUM OFFSET CURRENT : 20nA DIFFERENTIAL INPUT VOLTAGE RANGE : ±30V POWER CONSUMPTION : 135mW AT ±15V SUPPLY VOLTAGE : +5V TO ±15V OUTPUT CURRENT : 50mA
N DIP8 (Plastic P ackage)
D SO8 (Plastic Micropackage)
DESCRIPTION The LM111, LM211 and LM311 are voltage comparators that have low input currents. They are also designed to operate over a wide range of supply voltages : from standard ±15V operational amplifier supplies down to the single +5V supply used for IC logic. Their output is compatible with RTL-DTL and TTL as well as MOS circuits and can switch voltages up to +50V at output currents as high as 50mA. PIN CONNECTIONS (top view)
ORDER CODES
Part Num ber LM 111 LM 211 LM 311 Example : LM311D Temperature Range 55, 125oC 40, 105 C 0, 70 C
o o
Package N · · · D · · ·
1 2 3 4
+
8 7 6 5
-
1 2 3 4 5 6 7 8
- Ground - Non-inverting input - Inverting input - VCC- Balance - Strobe/balance - Output + - VC C
October 1997
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L M 11 1 - L M 2 11 - L M 311
SCHEMATIC DIAGRAM
S trobe / ba lanc e Ba lan c e R3 300 R4 300 C o lle c tor outpu t VC C
Q6 R2 1. 3k
R8 75 0
R9 6 0 0
Q 20
R1 1.3 k
R5 70
Q7
Q 10
R6 1. 2k
R7 1.2 k
Q 11 Q 12
Q5 Q8 Q3 Q9 Q4 Q 21 No n-inve rting input Q1
Q19
Q 13
R10 4 k
Q18 Q 14 R 16 400 R 11 130
D1 D2 5V 5V
R 17 60
Q 15 Q 23 Q 22 Inverting input Q2 R 15 450 Q 17 R14 2k Q 16 VC C R 13 4
R1 2 6 0 0
R1 9 2 5 0
R1 8 2 0 0
Em itte r output or ground
ABSOLUTE MAXIMUM RATINGS
Symbo l VCC Vid Vi Ptot Toper Tstg V(14) V(74) Supply Voltage Differential Input Voltage Input Voltage (note 1) Power Dissipation Operating Free-air Temperature Range Storage Temperature Range Ground to N egative Supply Voltage Output to Negative Supply Voltage 55 to +125 65 to +150 30 50 Parameter LM111 36 ± 30 ± 15 LM211 36 ±30 ±15 500 40 to +105 65 to +150 30 50 0 to +70 65 to +150 30 40 LM311 36 ±30 ±15 Unit V V V mW
o o
C C
V V
Output short-circuit duration : 10s Voltage at strobe pin : VCC+ 5V Note :
LM111 : +150oC Maximum junction temperature LM211 : +150oC LM311 : +150oC 1. Thi s rating applies for ±15V supplies. The positive input voltage limit is 30V above the negative. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less.
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L M 1 1 1 - L M 2 1 1 - LM 3 1 1
ELECTRICAL CHARACTERISTICS VCC = ±15V, T amb = 25oC (unless otherwise specified)
Symb ol Vio Parameter Input Offs et Voltage (RS 50k) (note 1) o Tamb = +25 C Tmin. Tamb Tmax. Input Offs et C urrent (note 1) Tamb = +25oC Tmin. Tamb Tmax. Input Bias Current (note 1) Tamb = +25oC Tmin. Tamb Tmax. Large Signal Voltage Gain Supply Currents Positive Negative Input Common Mode Voltage Range Tmin. Tamb Tmax. Low Level Output Voltage o Tamb = +25 C, IO = 50mA Vi -5mV Vi -10mV Tmin. Tamb Tmax. + VCC +4.5 V, VCC = 0 Vi -6mV Io = 8mA Vi -10mV High Level Output Current o Tamb = +25 C Tmin. Tamb Tmax. Istrobe tre Strobe C urrent Response Time (note 2) Vi + 5mV, VO = +35V Vi +10mV, VO = + 5V Vi + 5mV, VO = +35V -14.5 40 LM111 - LM211 Min. Typ. 0.7 Max. 3 4 10 20 100 150 40 6 5 +13 -14.5 1.5 0.75 0.23 0.4 0.23 0.2 0.1 3 200 10 0.2 0.5 3 200 50 0.4 nA nA µA mA ns 1.5 Min. LM311 Typ. 2 Max. 7.5 10 nA 4 6 50 70 nA 60 200 5.1 4.1 +13.8 -14.7 0.75 100 200 5.1 4.1 +13.8 -14.7 7.5 5 V +13 V 250 300 V/mV mA U nit mV
Iio
Iib
Avd ICC ICC
+
Vicm
VOL
IOH
Notes : 1. The offset voltage, offset current and bias current specifications apply for any supply voltage from a single +5V supply up to ±15V supplies. The offset voltages and offset currents given are the maximum values required to drive the output down to +1V or up to +14V with a 1mA load current. Thus, these parameters define an error band and take into account the worst-case of voltage gain and input impedance. 2. The response time specified (see definitions) is for a 100mV input step with 5mV overdrive.
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