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Details, datasheet, quote on part number:LM2903PT
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Datasheet text preview:
®
LM2903
LOW POWER DUAL VOLTAGE COMPARATORS
.WIDESINGLESUPPLYVOLTAGERANGEOR . . . . . . .
D ES C R I P T I O N
DUAL SUPPLIES +2V TO +36V OR ±1V TO ±18V VERY LOW SUPPLY CURRENT (0.4mA) INDE PENDENT OF SUPPLY VOLTAGE (1 mW/comparator at +5V) LOW INPUT BIAS CURRENT : 25nA TYP LOW INPUT OFFSET CURRENT : ±5nA 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
N DIP8 (Plastic Package)
D SO8 (Plastic Micropackage)
This device consists of two independent low power voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. These comparators also have a unique characteris-tic in the fact that the input common-mode voltage range includes ground even though operated from a single power supply voltage. P I N C O N N EC T I O N S ( t op v i e w )
P TSSOP8 (Thin Shrink Small Outline Package)
ORDER CODES
Part Number LM2903 Temperature Range -40, +125oC Package N · D · P ·
Example : LM2903N
1 2 3 4 + +
8 7 6 5
1 2 3 4 5 6 7 8 Output 1 Inverting input 1 Non-inverting input 1 VCCNon-inverting input 2 Inverting input 2 Output 2 VCC+
April 2000
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LM2903
S C H EM A T I C D I A G R A M ( 1 / 2 L M 2 90 3)
V CC
3 .5 µA
1 0 0 µA
3 .5 µA
1 0 0 µA
No n -inve rting Inp u t
V V CC V CC O
Inve r ting Inp u t
V CC
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vid Vi Ptot Toper Tstg
N ot es :
Parameter Supply Voltage Differential Input Voltage Input Voltage Output Short-circuit to Ground (note 1) Power Dissipation Operating Free-air TemperatureRange Storage Temperature Range
Value ±18 or 36 !36 -0.3 to +36 Infinite 830 -40 to +125 -65 to +150
Unit V V V mW
o o
C C
1. S h o r t - ci r c u i t f r om t he o u t p ut t o V CC + ca n ca u se e x ce s si ve h e at i n g a n d e v en t ua l d es t r u ct i on . T h e m a xi m um o ut p ut + c u r r e n t i s a pp r ox i m a t e l y 2 0 m A , i n de p en d en t o f t he m a g ni t ud e of V C C .
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LM2903
ELECTRICAL CHARACTERISTICS + o VCC = +5V, VCC = 0V, Tamb = 25 C (unless otherwise specified)
Symbol Vio Parameter Input Offset Vooltage (note 2) Tamb = +25 C Tmin. Tamb Tmax. Input Bias Current (note 3) Tamb = +25oC Tmin. Tamb Tmax. Input Offset Courrent Tamb = +25 C Tmin. Tamb Tmax. Large Signal Voltage Gain VCC = 15V, RL = 15k, Vo = 1 to 11V Supply Current (all comparators) VCC = 5V, no load VCC = 30V, no load Input Common Mode Voltage Range (VCC = 30V) - (note 4) o Tamb = +25 C Tmin. Tamb Tmax. Differential Input Voltage - (note 6) Output Sink Current (Vid = -1V, VO = 1.5V) Low Level Output Voltage (Vid = -1V, Isink = 4mA) Tamb = 25oC Tmin. Tamb Tmax. High Level Output Current (Vid = 1V, VCC = VO = 30V) Tamb = 25oC Tmin. Tamb Tmax. Small Signal Response Time (RL = 5.1k to VCC+) - (note 5) Large Signal Response Time - (note 7) TTL Input (Vref = +1.4 V, RL = 5.1k to VCC+) Output Signal at 50% of final value Output Signal at 95% of final value 6 16 mV 250 400 700 0 0 25 Min. Typ. 1 Max. 7 15 nA 25 250 400 nA 5 50 150 V/mV 200 mA 0.4 1 1 2.5 VCC + 1.5 V CC -2 VCC+ V mA
+
Unit mV
Iib
Iio
Avd ICC Vicm
V
Vid Isink V OL
IOH
0.1 1 1.3
nA µA µs
tre trel
500 1
ns µs
N o te s :
2. A t o u t p ut sw i t c h po i n t , V O # 1. 4 V , R S = 0 w i t h V C C + f r om 5 V t o 30 V an d o v er t h e f u l l i np u t c o m m o n- m o d e r a ng e ( 0 V t o V C C + 1. 5 V ) . 3. T he d i r e ct i on o f t he i n pu t cu r r e n t i s ou t of t h e I C d u e t o t h e P N P i n pu t s t a g e. T h i s c u r r e nt i s e s se nt i al l y co n st an t , i n de p en d en t o f t he s t a t e o f t h e o ut p ut , s o no l o ad i ng c ha r ge e x i s t s o n t h e r e f er en c e or i np u t l i n es . 4. T he i n p ut co m m o n - m od e vo l t a ge o f e i t h er i np u t s i gn a l v ol t ag e sh o ul d no t b e a l l o w e d t o g o ne g at i ve b y m o r e t ha n 0 . 3 V . T he u pp e r en d of t he c om m on - m o d e v o l t a g e r a n ge i s V C C + 1. 5 V , b ut e i t he r or b ot h i n p ut s c an g o t o + 30 V w i t h ou t da m ag e . 5. T he r e sp o ns e t i m e s pe c i f i e d i s f o r a 10 0 m V i n p ut st e p w i t h 5m V o v er dr i ve . 6. P o si t i v e ex c ur si o ns of i np u t v ol t ag e m a y e x ce ed t h e p ow e r s u pp l y l ev e l . A s l on g a s t h e o t h e r v o l t a g e r em a i n s w i t hi n t h e c om m on - m o de r an g e t h e c o m p a r a t o r w i l l p r o v i d e a p r o p er ou t p u t s t a t e. T h e l ow i n pu t v ol t a g e s t a t e m u s t no t b e l e s s t h a n 0 . 3V ( o r 0 . 3V be l ow t h e n eg a t i v e po w er s u p pl y , i f u s e d ) . 7. M a xi m u m v al ue s ar e gu a r a n t e e d by d e si g n.
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