LM2903DT STMicroelectronics, LM2903DT Datasheet - Page 8

• Manufacturer Part Number: LM2903DT
• Description: IC COMPARATOR LP DUAL 8-SOIC
• Manufacturer: STMicroelectronics
• Type: General Purposer

Specifications of LM2903DT

• Number Of Elements: 2
• Output Type: CMOS, DTL, ECL, MOS, Open-Collector, TTL
• Voltage - Supply: 2 V ~ 36 V, ±1 V ~ 18 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Comparator Type: Low Power
• No. Of Comparators: 2
• Response Time: 1.3µs
• Ic Output Type: CMOS, MOS, TTL, DTL, ECL
• Supply Current: 1mA
• Supply Voltage Range: ± 1V To ± 18V
• Amplifier Case Style: SOIC
• Rohs Compliant: Yes
• Number Of Elements: 2
• Technology: Bipolar
• Input Offset Voltage: 7mV
• Input Bias Current (typ): 250nA
• Single Supply Voltage (typ): 3/5/9/12/15/18/24/28V
• Dual Supply Voltage (typ): ±3/±5/±9/±12/±15V
• Supply Current (max): 1@5VmA
• Power Supply Requirement: Single/Dual
• Voltage Gain In Db: 106.02dB
• Single Supply Voltage (min): 2V
• Single Supply Voltage (max): 36V
• Dual Supply Voltage (min): ±1V
• Dual Supply Voltage (max): ±18V
• Power Dissipation: 710mW
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1559-2

Typical application schematics
Figure 19. Time delay generator
Figure 20. Two-decade high-frequency VCO
8/15
V
Frequency control
V
C1
CC
Input gating signal
voltage input
V
V
V
Vcontrol
3
2
1
0
t t
0 1
V
CC
t
0
2
t
o
t
3
100 kΩ
50 kΩ
t
A
t
4
+250 mV
700 Hz
V
V
(ref.)
CC
t
20 kΩ
= + 30 V
0.1 μF
10 kΩ
10 kΩ
f
o
V control
100 kHz
20 kΩ
10 kΩ
LM2903
+50 V
1/2
LM2903
Doc ID 2470 Rev 8
1/ 2
500 pF
15 kΩ
0.001 μ F
V
51 kΩ
51 kΩ
51 kΩ
C1
V
LM2903
1
1/ 2
V
V
V
CC
V
200 kΩ
3
2
3 kΩ
C C
0.01 μF
5.1 kΩ
= +15 V
10 kΩ
10 kΩ
10 kΩ
V
CC
/2
V
CC
/2
LM2903
LM2903
LM2903
100 kΩ
LM2903
1/2
1/2
1/2
10 MΩ
10 MΩ
10 MΩ
1/ 2
V
CC
3 kΩ
3 kΩ
3 kΩ
3 kΩ
V
V
V
O1
O2
03
Output 2
Output 1
V
V
V
CC
t
CC
t
CC
t
o
o
0
LM2903
t
1
t
2
t
3