Advanced Monolithic Systems AMS303 MICROPOWER COMPARATOR, OPEN COLLECTOR OUTPUT RoHS compliant FEATURES APPLICATIONS • Guaranteed 2.7V to 15V supplies • Open Collector Output • Industrial temperature range: -40ºC to +85ºC • Low Offset Voltage <5mV • Low Supply Current: 7µA • Mobile battery operated products • Notebooks and PDA’s • Alarmed Circuits • LED driver • Communication Circuits GENERAL DESCRIPTION The AMS303 has rail-to-rail output swing and input common-mode voltage. It exhibit excellent speed-power ratio, achieving a Propagation Delay of 400ns with low supply current. The AMS303 is available in space saving 5-Pin SOT23. The small package saves space on pc boards, and enables the design of small portable electronic devices. It also allows the designer to place the device closer to the signal source to reduce noise pickup and increase signal integrity. ORDERING INFORMATION: PIN CONNECTIONS MAX. PACKAGE TYPE OPERATING OFFSET 5 LEAD SOT-23 AMS303AM1 AMS303M1 TEMP. RANGE -40 to +85°C -40 to +85°C 5mV 15mV 5L SOT-23 (M1) VCC 1 5 -IN GND 2 VO 3 4 +IN Top View TYPICAL APPLICATION VCC R pull-up RIN - VIN Vo + Vref R1 RF Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS303 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage Differential Input Voltage ESD Tolerance (Note 2) Infrared or Convection (20 sec) 2.7V to 16V ±Supply Voltage 2000V 235ºC Temperature Range (Note 5) Storage Temp. Range Junction Temperature (Note 5) Thermal Resistance (Note 10) -40ºC to +85ºC -65ºC to 150ºC 150ºC 265ºC 2.7V ELECTRICAL CHARACTERISTICS Electrical Characteristics at TA = 25ºC, V+ = 2.7V, V- = 0V, VCM = VO = V+/2 unless otherwise noted. PARAMETER CONDITIONS Min. (Note 7) Input Offset Voltage AMS303 Typ. (Note 6) 0.5 Units Max. (Note 7) 5 mV Input Offset Voltage Average Drift 2 µV/ºC Input Bias Current 11 20 nA Input Offset Current 5 15 nA Av Voltage Gain 100 dB Common Mode Rejection Ratio 0V ≤ VCM ≤ 2.7V 75 dB Power Supply Rejection Ratio 2.7V ≤ V+ ≤ 10V 80 dB Input Common-Mode Voltage Range For CMRR ≥ 55 dB Output Low Iload= 2mA 0 Supply Current -0.2 2.7 2.75 V V 0.2 300 mV 7 10 µA 5.0V DC ELECTRICAL CHARACTERISTICS Electrical Characteristics at TA = 25ºC, V+ = 5.0V, V- = 0V, VCM = VO = V+/2 unless otherwise noted. PARAMETER CONDITIONS Min. (Note 7) Input Offset Voltage AMS303 Typ. (Note 6) 0.5 Units Max. (Note 7) 5 mV Input Offset Voltage Average Drift 2 Input Bias Current µV/ºC 11 20 nA Input Offset Current 5 15 nA Av Voltage Gain 100 dB Common Mode Rejection Ratio 0V ≤ VCM ≤ 5.0V 75 dB Power Supply Rejection Ratio 5V ≤ V+ ≤ 10V Input Common-Mode Voltage Range For CMRR ≥ 55 dB Output Low Iload= 2mA Supply Current Advanced Monolithic Systems, Inc. www.advanced-monolithic.com 0 80 dB -0.2 2.7 2.75 V V 0.2 300 mV 7 10 µA Phone (925) 443-0722 Fax (925) 443-0723 AMS303 15.0V DC ELECTRICAL CHARACTERISTICS Electrical Characteristics at TA = 25ºC, V+ = 15.0V, V- = 0V, VCM = VO = V+/2 unless otherwise noted. PARAMETER CONDITIONS Min. (Note 7) AMS303 Typ. (Note 6) Input Offset Voltage Units Max. (Note 7) 0.5 5 mV Input Offset Voltage Average Drift 2 Input Bias Current 11 20 nA 5 15 nA Input Offset Current Av µV/ºC Voltage Gain 100 dB Common Mode Rejection Ratio 0V ≤ VCM ≤ 5.0V 75 dB Power Supply Rejection Ratio 5V ≤ V+ ≤ 10V 80 dB Input Common-Mode Voltage Range For CMRR ≥ 55 dB Output Low Iload= 2mA 0 Supply Current -0.2 2.7 2.75 V V 0.2 300 mV 7 10 µA AC ELECTRICAL CHARACTERISTICS Unless otherwise specified, all limits guaranteed for TJ = 25 °C, V+ = 5V, V- = 0V, VCM = VO = V+/2. Boldface limits apply at the temperature extreme. PARAMETER CONDITIONS Min. Rise Time Fall Time Units Max. f = 10kHz, CL = 50 pF, ( Note 9) Overdrive = 100 mV, 5Ω Pullup f = 10 kHz, CL = 50 pF, (Note 9) Overdrive = 100mV, 5Ω Pullup Propagation Delay (High to Low) (Note 11) f = 10 kHz, CL = 50 pF, 5 kΩ Pullup (Note 9) 10 mV overdrive 100 mV overdrive Propagation Delay f = 10 kHz, CL = 50 pF, 5 kΩ Pullup (Note 9) 10 mV overdrive 100 mV overdrive (Low to High) (Note 11) AMS303 Typ. 25 ns 30 ns 400 ns 320 ns 420 ns Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics. Note 2: Human body model, 1.5 kΩ in series with 100 pF. Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature of 150 °C. Output currents in excess of ±30 mA may adversely affect reliability. Note 4: The maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is. Note 5: PD = (TJ(max) - TA)/ θJA. All numbers apply for packages soldered directly into a PC board. Note 6: Typical values represent the most likely parametric norm. Note 7: All limits are guaranteed by testing or statistical analysis. Note 8: Limiting input pin current is only necessary for input voltages which exceed the absolute maximum input voltage rating. Note 9: Do not short circuit the output to V+ when V+ is greater than 12V or reliability will be adversely affected. Note 10: CL includes the probe and test jig capacitance. Note 11: Input offset voltage average drift is calculated by dividing the accelerated operating life VOS drift by the equivalent operational time. This represents worst case input conditions and includes the first 30 days of drift. Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS303 TYPICAL PERFORMANCE CHARACTERISTICS 5mV input falling prop delay 5mV input rising prop delay 10mV input falling prop delay 20mV input falling prop delay 50mV input falling prop delay Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS303 TYPICAL PERFORMANCE CHARACTERISTICS 100mV input falling prop delay 100mV input rising prop delay Fall time 100mV overdrive 1K 10pF load Rise time 100mV overdrive 1K 10pF load Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS303 APPLICATION INFORMATION AMS303 is an open collector with a very low supply current of typical 7uA. The advantage of this product is the small space package and simplicity of application. It operates from as low as +2.7V to +15Vand the output pull-up resistor could be biased from higher or lower voltage then Vcc. When a large input signal is applied, an input resistor should be used to limit the input current in case of excessive input voltage. If the input voltage is pulled above the supply voltage Vcc, a set of clamp diode should be used to protect the input circuit. Since AMS303 is a high impedance input, PCB layout precautions should be taken to avoid noise pick-up from adjacent circuits or electrically noisy environments. A good practice is to keep the input traces very short and input components very close to the package. If long conductors are necessary, shielded or twisted pairs should be used. VCC VIN Advanced Monolithic Systems, Inc. www.advanced-monolithic.com RIN - R pull-up Vo R1 + R2 RF Phone (925) 443-0722 Fax (925) 443-0723 AMS303 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 5 LEAD SOT-23 PLASTIC PACKAGE (M1 0.110-0.120 (2.794-3.048) 0.102-0.118 (2.60-3.00) 0.059-0.070 (1.50-1.75) 0.014-0.020 (0.350-0.50) 0.037 (0.95) TYP 0.018-0.024 (0.457-0.610) 10° NOM 0.036-0.051 (0.090-1.30) 0.0035-0.0080 (0.090-0.20) 0.003 (0.150) MAX 0.075 (1.90) TYP Advanced Monolithic Systems, Inc. www.advanced-monolithic.com 10° NOM 0.018-0.024 (0.457-0.610) (SOT-23-5 ) AMS DRW# 051001 Phone (925) 443-0722 Fax (925) 443-0723