TS9002 TOUCHSTONE | Alldatasheet
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Technical content
© 2012 Touchstone Semiconductor, Inc. All rights reserved.
FEATURES
♦ Ultra-Low Quiescent Current: 4μA (max), Both Comparators plus Reference ♦ Single or Dual Power Supplies: Single: +2.5V to +11V Dual: ±1.25V to ±5.5V ♦ Input Voltage Range Includes Negative Supply ♦ 7μs Propagation Delay ♦ Push-pull TTL/CMOS-Compatible Outputs ♦ Crowbar-Current-Free Switching ♦ Continuous Source Current Capability: 40mA ♦ Internal 1.182V ±0.75% Reference ♦ Adjustable Hysteresis ♦ 8-pin MSOP Package
APPLICATIONS
DESCRIPTION
The TS9002 low -voltage, micropower dual analog comparator is form -factor identical to the MAX923 analog comparator with improved electrical specifications. Ideal for 3V or 5V single -supply applications, the TS9002 draws 11% lower supply current with a 25% -better initial accuracy reference voltage. The TS9002 joins Touchstone’s TS9001-1/2 analog comparators in the “NanoWatt Analog™” high performance analog integrated circuits portfolio. The TS9002 can operate from single +2.5V to +11V supplies or from ±1.25V to ±5.5V dual supplies. The TS9002 exhibits an input voltage range from the negative supply rail to within 1.3V of the positive supply rail. In addition, its push -pull output stage is TTL/CMOS compatible and capable of sinking and sourcing current. It also incorporates an internal 1.182V ±0.75% voltage reference. Without complicated feedback configurations and only requiring two additional res istors, adding external hysteresis via a separate pin is available on the TS9002’s HYST pin. The TS9002 is fully specified over the -40ºC to +85ºC temperature range and is available in a 8 -pin MSOP package. Low-Power Single/Dual-Supply Dual Comparator with Reference TYPICAL APPLICATION CIRCUIT A 5V, Low-Parts-Count, High-Accuracy Window Detector The Touchstone Semiconductor logo is a registered trademark of Touchstone Semiconductor, Incorporated.
Continuous Power Dissipation (TA = +70°C) Output Current Electrical and thermal s tresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not implied. Exposure to any absolute maximum rating conditions for extended periods may affect device reliability and lifetime. PACKAGE/ORDERING INFORMATION ORDER NUMBER PART MARKING CARRIER QUANTITY TS9002IM8TP TADG Tube 50 TS9002IM8T Tape & Reel 2500 Lead-free Program: Touchstone Semiconductor supplies only lead-free packaging. Consult Touchstone Semiconductor for products specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS – 5V OPERATION V+ = 5V, V- = GND = 0V; TA = -40ºC to +85ºC, unless otherwise noted. Typical values are at TA = +25ºC. See Note 1. PARAMETER CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS Supply Voltage Range 2.5 11 V Supply Current IN+ = IN- + 100mV HYST = REF TA = +25°C 2.6 4 µA -40°C to +85°C 5.2 COMPARATOR Input Offset Voltage VCM = 2.5V TA = +25°C ±3.5 mV -40°C to +85°C ±10 Input Leakage Current (IN-, IN+) IN+ = IN- = 2.5V TA = +25°C ±0.01 ±2 nA Input Leakage Current (HYST) TA = +25°C ±0.02 nA -40°C to +85°C ±0.02 nA Input Common-Mode Voltage Range V- V+ – 1.3V V Common-Mode Rejection Ratio V- to (V+ – 1.3V) 0.1 1 mV/V Power-Supply Rejection Ratio V+ = 2.5V to 11V 0.1 1 mV/V Output Voltage Noise 100Hz to 100kHz 20 μVRMS Hysteresis Input Voltage Range REF- 0.05V REF V Response Time (High-to-Low Transition) TA = +25°C, 100pF load Overdrive = 10 mV 17 μs Overdrive = 100 mV 7 Response Time (Low-to-High Transition) TA = +25°C, 100pF Load Overdrive = 10 mV 17 μs Overdrive = 100 mV 7 Output High Voltage -40°C to +85°C; IOUT = 17mA V+ – 0.4 V Output Low Voltage -40°C to +85°C; IOUT = 1.8mA GND + 0.4 V Dual Supply -40°C to +85°C; IOUT = 1.8mA V- + 0.4 V REFERENCE Reference Line Regulation 2.5V ≤ (V+ - V-) ≤ 11V TA = +25°C 0.25 mV/V Source Current ΔVREF = 1% TA = +25°C 20 25 μA -40°C to +85°C 6 Sink Current ΔVREF = 1% TA = +25°C 10 15 μA -40°C to +85°C 4 Output Voltage Noise 100Hz to 100kHz 100 μVRMS
ELECTRICAL CHARACTERISTICS – 3V OPERATION V+ = 3V, V- = GND = 0V; TA = -40ºC to +85ºC, unless otherwise noted. Typical values are at TA = +25ºC. See Note 1. PARAMETER CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS Supply Current IN+ = IN- + 100mV HYST = REF TA = +25°C 2 3.8 µA -40°C to +85°C 5.3 COMPARATOR Input Offset Voltage VCM = 1.5V TA = +25°C ±3.5 mV -40°C to +85°C ±10 Input Leakage Current (IN-, IN+) IN+ = IN- = 1.5V TA = +25°C ±0.01 ±2 nA Input Leakage Current (at HYST Pin) TA = +25°C ±0.02 nA -40°C to +85°C ±0.02 nA Input Common-Mode Voltage Range V- V+ – 1.3V V Common-Mode Rejection Ratio V- to (V+ – 1.3V) 0.1 1 mV/V Power-Supply Rejection Ratio V+ = 2.5V to 11V 0.1 1 mV/V Output Voltage Noise 100Hz to 100kHz 20 μVRMS Hysteresis Input Voltage Range REF- 0.05V REF V Response Time (High-to-Low Transition) TA = +25°C, 100pF load Overdrive = 10 mV 17 μs Overdrive = 100 mV 7 Response Time (Low-to-High Transition) TA = +25°C, 100pF Load Overdrive = 10 mV 17 μs Overdrive = 100 mV 7 Output High Voltage -40°C to +85°C; IOUT = 10mA V+ – 0.4 V Output Low Voltage -40°C to +85°C; IOUT = 1.8mA GND + 0.4 V Dual Supply -40°C to +85°C; IOUT = 1.8mA V- + 0.4 V REFERENCE Reference Line Regulation 2.5V ≤ (V+ - V-) ≤ 5V TA = +25°C 0.25 mV/V Source Current ΔVREF = 1% TA = +25°C 20 25 μA -40°C to +85°C 6 Sink Current ΔVREF = 1% TA = +25°C 10 15 μA -40°C to +85°C 4 Output Voltage Noise 100Hz to 100kHz 100 μVRMS Note 1: All specifications are 100% tested at TA = +25°C. Specification limits over temperature (TA = TMIN to TMAX) are guaranteed by device characterization, not production tested.
TYPICAL PERFORMANCE CHARACTERISTICS V+ = 5V; V- = GND; TA = +25°C, unless otherwise noted. LOAD CURRENT - mA VOL - V 4 8 Output Voltage Low vs Load Current 0 12 1.5 0.5 LOAD CURRENT - µA REFERENCE VOLTAGE - V 5 10 1.165 1.155 1.180 Reference Output Voltage vs Output Load Current 0 15 1.170 1.175 1.160 TEMPERATURE - ºC REFERENCE VOLTAGE - V Reference Voltage vs Temperature LOAD CURRENT - mA VOH - V 10 20 1.5 Output Voltage High vs Load Current 0 30 2.5 40 50
3.5 V+ = 3V
V+ = 5V SINK 2.5 4.5 V+ = 3V V+ = 5V 25 30 1.190 1.185 SOURCE V+ = 3V or 5V -15 10 -40 35 60 85 1.16 1.14 1.19 1.17 1.18 1.15 1.21 1.20 1.22 24 28 TEMPERATURE - ºC SUPPLY CURRENT - µA Supply Current vs Temperature -15 10 -40 35 60 85 3.5 2.5 4.5 1.5 V+ = 5V, V- = 0V V+ = 3V, V- = 0V VREF - VHYST - mV IN+ - IN- - mV -40 -80 Hysteresis Control -20 -60 10 20 0 30 40 OUTPUT HIGH OUTPUT LOW NO CHANGE
TYPICAL PERFORMANCE CHARACTERISTICS V+ = 5V; V- = GND; TA = +25°C, unless otherwise noted. LOAD CAPACITANCE - nF RESPONSE TIME - µs Response Time vs Load Capacitance 20 40 0 60 80 V- = 0V 100 VOHL VOLH RESPONSE TIME - µs OUTPUT VOLTAGE - V 0 2 Response Time For Various Input Overdrives (Low-to-High) -2 4 100 RESPONSE TIME - µs 10mV 20mV 50mV INPUT VOLTAGE - V 4 100mV 10 12 14 16 18 20 TOTAL SUPPLY VOLTAGE - V SOURCE CURRENT - mA Short-Circuit Source Current vs Supply Voltage TOTAL SUPPLY VOLTAGE - V SINK CURRENT - mA Short-Circuit Sink Current vs Supply Voltage 4.5 6.5 2.5 GND CONNECTED TO V- 100 120 140 160 OUT CONNECTED TO V- OUT CONNECTED TO V+ 8.5 10 Response Time For Various Input Overdrives (High-to-Low) OUTPUT VOLTAGE - V INPUT VOLTAGE - V 10mV 20mV 50mV 100mV 100 0 2 -2 4 6 8 10 12 14 16 18 2.5 3 3.5 4 4.5 5 5.5 180 200
The TS9002 dual , low -voltage, micropower analog comparator provides excellent flexibility and performance while sourcing continuously up to 40mA of current. The TS9002 draws less than 5.5µA (total) over temperature for both comparators, including the reference. It also exhibits an input offset voltage of ±3.5 mV, and has an on -board +1.182V ±0.75% voltage reference . To minimize glitches that can occur with parasitic feedback or a less than optimal board layout, the design of the TS9002 output stage is optimized to eliminate crowbar glitches as the output switches. To minimize current consumption while providing flexibility, TS9002 has an on-board HYST pin in ord er to add additional hysteresis. Power-Supply and Input Signal Ranges The TS 9002 can operate from a single supply voltage range of +2.5V to +11V, provides a wide common mode input voltage range of V - to V+-1.3V, and accept s input signals ranging from V - to V+ - 1V. The inputs can accept an input as much as 300mV above and below the power supply ra ils without damage to the part. T he TS 9002 i s TTL compatible with a single +5V supply. Comparator Output The output design of the TS9002 can source and sink more than 40mA and 5mA, respectively, while simultaneously maintaining a quiescent current less TS9002 NAME FUNCTION MSOP-8 1 OUTA Comparator A Output. Sinks and sources current. Swings from V+ to V-. 2 V- Negative Supply Voltage. Connect to ground for single-supply operation.
3 INA+ Comparator A Noninverting Input
4 INB- Comparator B Inverting Input
5 HYST Hysteresis Input. Connect to REF if not used. Input voltage range is from VREF to (VREF - 50mV). 6 REF 1.182V Reference Output with respect to V-.
7 V+ Positive Supply Voltage
8 OUTB Comparator B Output. Sinks and sources current. Swings from V+ to V-.
plane and surface mount resistors and capacitors. overvoltage threshold detector using the TS 9002.
- As described below, determine the desired
- Choosing R1. As the leakage current at the
resistor is selected for R1.
- Calculating R2 + R3. As the input voltage
- Calculating R2. As the input voltage VIN falls,
the undervoltage threshold should be 4.5V. Figure 3. Window Detector
In this example, a 1.9kΩ, 1% standard value resistor is selected for R2. 5. Calculating R3. R (R2 + R ) R2 1.0 MΩ – 1.9kΩ 1.00 MΩ In this example, a 1MΩ, 1% standard value resistor is selected for R3. 6. Using the equations below, verify all resistor values selected: VOTH (VREF + VHYS) x R1 + R2 + R = 5.474V VOTH (VREF VHYS) x R1 + R2 + R (R1+R2) 4.4 4V Where the hysteresis voltage is given by: VHYS VREF x R5
Touchstone Semiconductor, Inc. Page 11
630 Alder Drive, Milpitas, CA 95035 TS9002DS r1p0
+1 (408) 215 - 1220 ▪ www.touchstonesemi.com RTFDS PACKAGE OUTLINE DRAWING 8-Pin MSOP Package Outline Drawing (N.B., Drawings are not to scale)
0.65 REF
3.10 Max
2.90 Min
0.95 Max
0.75 Min
0.15 Max
0.05 Min
5.08 Max
4.67 Min
0' -- 6' DETAIL ‘A’ DETAIL “A” 0.25 0.70 Max
0.40 Min
0.23 max
0.13 Min
NOTE: 1. PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 2. PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTUSIONS. 3. CONTROLLING DIMENSION IN MILIMETERS. 4. THIS PART IS COMPLIANT WITH JEDEC MO-187 VARIATIONS AA 5. LEAD SPAN/STAND OFF HEIGHT/COPLANARITY ARE CONSIDERED AS SPECIAL CHARACTERISTIC. 1 2
0.38 Max
0.28 Min
0.10 Max
1.10 Max
0.27 REF
0.127 0.23 Max Information furnished by Touchstone Semiconductor is believed to be accurate and reliable. However, Touchstone Semiconductor does not assume any responsibility for its use nor for any infringements of patents or other rights of thir d parties that may result from its use , and all information provided by Touchstone Semiconductor and its suppliers is provided on an AS IS basis, WITHOUT WARRANTY OF ANY KIN D. Touchstone Semiconductor reserves the right to change product specifications and product descriptions at any time without any advance notice. No license is granted by implication or otherwise under any patent or patent rights of Touchstone Semiconductor. Touchstone Semiconductor assumes no liability for applications assistance or cust omer product design. Customers are responsible for their products and applications using Touchstone Semiconductor components. To minimize the risk associated with customer products and applicatio ns, customers should provide adequate design and operating sa feguards. Trademarks and registered trademarks are the property of their respective owners.