LM239PT ,LOW POWER QUAD VOLTAGE COMPARATORABSOLUTE MAXIMUM RATINGS Symbol Parameter Value UnitVSupply voltage ±18 or 36 VCCVDifferentia ..
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LM4041BIDBZT ,Adjustable Precision Micropower Shunt Voltage Reference, 0.2% accuracyFEATURES • Applications• 1.225-V Fixed and Adjustable Outputs – Data-Acquisition Systems(1.225 V to ..
LM4041BIDCKR ,Adjustable Precision Micropower Shunt Voltage Reference, 0.2% accuracySLCS146E–FEBRUARY 2005–REVISED FEBRUARY 2006Packaged in space-saving SC-70 and SOT-23-3 and requiri ..
LM239APT-LM239PT
LOW POWER QUAD VOLTAGE COMPARATOR
1/10 WIDE SINGLE SUPPLY VOLTAGE RANGE
OR DUAL SUPPLIES FOR ALL DEVICES :
+2V TO +36V OR ±1V TO ±18V VERY LOW SUPPLY CURRENT (1.1mA)
INDEPENDENT OF SUPPLY VOLTAGE (1.4mW/comparator at +5V) LOW INPUT BIAS CURRENT : 25nA TYP LOW INPUT OFFSET CURRENT : ±5nA TYP LOW INPUT OFFSET VOLTAGE : ±1mV TYP INPUT COMMON-MODE VOLTAGE RANGE
INCLUDES GROUND LOW OUTPUT SATURATION VOLTAGE :
250mV TYP; (Io = 4mA) DIFFERENTIAL INPUT VOLTAGE RANGE
EQUAL TO THE SUPPLY VOLTAGE TTL, DTL, ECL, MOS, CMOS COMPATIBLE
OUTPUTS
DESCRIPTIONThese devices consist of four independent preci-
sion voltage comparators with an offset voltage
specifications as low as 2mV max for LM339A,
LM239A and LM139A. All these comparators
were designed specifically to operate from a sin-
gle power supply aver a wide range of voltages.
Operation from split power supplies is also possi-
ble.
These comparators also have a unique character-
istic in that the input common-mode voltage range
includes ground even though operated from a sin-
gle power supply voltage.
ORDER CODE
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape &Reel (PT)
PIN CONNECTIONS (top view)
LM139,A
LM239,A - LM339,ALOW POWER QUAD VOLTAGE COMPARATORS
March 2003
LM139,A-LM239,A-LM339,A2/10
SCHEMATIC DIAGRAM (1/4 LM139)
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS (Tamb = 25°C) Short-circuits from the output to VCC+ can cause excessive heating and eventual destruction. The maximum output current is approximately 20mA independent of the magnitude of VCC+. Pd is calculated with Tamb = +25°C, Tj = +150°C and Rthja = 80°C/W for DIP14 package= 150°C/W for SO14 package= 175°C/W for TSSOP14 package
LM139,A-LM239,A-LM339,A3/10
ELECTRICAL CHARACTERISTICSVCC+ = +5V, VCC- = GND, Tamb = +25°C (unless otherwise specified) At output switch point, Vo ≈ 1.4V, Rs = 0 with VCC + from 5V to 30V, and over the full common-mode range (0V to VCC + -1.5V). The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output, so no loading charge exists on the reference of input lines. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is VCC+ -1.5V, but either or both inputs can go to +30V without damage The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can be obtained Posistive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the
comparator will provide a proper output state. The low input voltage state must not be less than -0.3V (or 0.3V bellow the negative power supply, if used).
LM139,A-LM239,A-LM339,A4/10
SUPPLY CURRENT versus SUPPLY VOLTAGE
OUTPUT SATURATION VOLTAGE versus
OUTPUT CURRENT
RESPONSE TIME FOR VARIOUS INPUT
OVERDRIVES - POSITIVE TRANSITION
INPUT CURRENT versus SUPPLY VOLTAGE
RESPONSE TIME FOR VAROIOUS INPUT
OVERDRIVES - NEGATIVE TRANSITION
LM139,A-LM239,A-LM339,A5/10
TYPICAL APPICATIONSBASIC COMPARATOR
DRIVING TTL
LOW FREQUENCY OP AMP
DRIVING CMOS
LOW FREQUENCY OP AMP
TRANSDUCER AMPLIFIER
LM139,A-LM239,A-LM339,A6/10
TYPICAL SINGLE (continued)TIME DEALY GENERATOR
LOW FREQUANCY OP AMP WITH OFFSET
ADJUST
ZERO CROSSING DETECTOR (single power
supply)
