SGM871 GENERAL DESCRIPTION The SGM871 is an ultra low power comparator with a typical power supply current of 3nA. It has the best-in-class power supply current versus propagation delay performance. The propagation delay is as low as 6μs with 1mV overdrive at 1.4V supply. Designed to operate over a wide range of supply voltages, from 1.4V to.v, with guaranteed operation at 1.4V, 2.V and.v, the SGM871 is ideal for use in a variety of battery-powered applications. With rail-to-rail common mode voltage range, the SGM871 is well suited for single-supply operation. Its small packages make this device ideal for use in handheld electronics and mobile phone applications. Featuring a push-pull output stage, the SGM871 allows for operation with absolute minimum power consumption when driving any capacitive or resistive load. FEATURES Ultra Low Power Consumption: 3nA (TYP) at Wide Supply Voltage Range: 1.4V to.v Propagation Delay: 6μs (TYP) at Push-Pull Output Current Drive: 19mA (TYP) at Rail-to-Rail Input -4 to Operating Temperature Range Available in Green SOT-23- and SC7- Packages APPLICATIONS RC Timers Window Detectors IR Receiver Multivibrators Alarm and Monitoring Circuits SGM871 is available in Green SOT-23- and SC7- space-saving packages. It is rated over the -4 C to +8 C temperature range. REV. A. 2
SGM871 PACKAGE/ORDERING INFORMATION MODEL SGM871 PIN- PACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SOT-23- -4 to SGM871YNG/TR S9XX Tape and Reel, 3 SC7- -4 to SGM871YCG/TR SAXX Tape and Reel, 3 NOTE: Order number and package marking are defined as the follow: ORDER NUMBER SGM871 X X G / TR Tape and Reel Green Product Package Type N C SOT-23- SC7- Operating Temperature Range Y -4 to MARKING INFORMATION SYY X X Date code - month ("A" = Jan. "B" = Feb. "L" = Dec.) Date code - year ("A" = 21, "B" = 211 ) Chip I.D. For example: S9BA (211, January) ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATIONS (TOP VIEW) Supply Voltage, +V S to -V S......6V V IN Differential..........±2.V Voltage at Input/Output pins..(-v S) -.3V to (+V S) +.3V Operating Temperature Range...-4 to V OUT 1 SGM871 +V S Junction Temperature... 1 Storage Temperature...-6 to +1 Lead Temperature (soldering, 1s)...26 -V S V IN+ 2 + 3 4 V IN- ESD Susceptibility HBM...2V MM...4V CAUTION SOT-23-/SC7- NOTE: Stresses 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 conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. This integrated circuit can be damaged by ESD if you don t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. Please contact SGMICRO sales office to get the latest datasheet. 2
SGM871 ELECTRICAL CHARACTERISTICS: (At T A = 2 C, +, -V S = V, V CM = +V S/2 and V O = -V S, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V CM =.3V 3 1 Supply Current I S na V CM = 1.1V 2 1 Input Offset Voltage V OS V CM = V -3. 3 V CM = 1.4V -3. 3 Input Offset Average Drift 2 µv/ Common Mode Rejection Ratio CMRR V CM Stepped from V to.3v 6 V CM Stepped from.8v to 1.4V 7 V CM Stepped from V to 1.4V 7 Power Supply Rejection Ratio PSRR V S = 1.8V to.v, V CM = V 66 9 db Large Signal Voltage Gain A VO 1 db Output Swing High Output Swing Low Output Current V OH V OL I OUT V S = 1.8V, I O = μa 1.98 1.669-4 T A 1.81 V S = 1.8V, I O = 1mA 1.324 1.8-4 T A 1.288 V S = 1.8V, I O = -μa 82 112-4 T A 127 V S = 1.8V, I O = -1mA 167 22-4 T A 23 Source.7 Sink 2. Propagation Delay Overdrive = 1mV 12 (High to Low) Overdrive = 1mV 6 Propagation Delay Overdrive = 1mV 26 (Low to High) Overdrive = 1mV 17 Rise Time Fall Time t Rise t Fall Overdrive = 1mV, C L = 3pF, R L = 1MΩ 22 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 22 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 1 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 1 mv db V mv ma μs μs ns ns 3
SGM871 ELECTRICAL CHARACTERISTICS: V S = 2.V (At T A = 2 C, +V S = 2.V, -V S = V, V CM = +V S/2 and V O = -V S, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V CM =.3V 31 Supply Current I S na V CM = 2.2V 26 Input Offset Voltage V OS V CM = V. V CM = 2.V. Input Offset Average Drift 2 µv/ Common Mode Rejection Ratio CMRR V CM Stepped from V to 1.4V 7 V CM Stepped from 1.9V to 2.V 8 V CM Stepped from V to 2.V 8 Power Supply Rejection Ratio PSRR V S = 1.8V to.v, V CM = V 9 db Large Signal Voltage Gain A VO 1 db Output Swing High Output Swing Low Output Current V OH V OL I OUT I O = μa 2.419 I O = 1mA 2.333 I O = -μa 66 I O = -1mA 133 Source.3 Sink 7.7 Propagation Delay Overdrive = 1mV 12 (High to Low) Overdrive = 1mV Propagation Delay Overdrive = 1mV 28 (Low to High) Overdrive = 1mV 19 Rise Time Fall Time t Rise t Fall Overdrive = 1mV, C L = 3pF, R L = 1MΩ 12 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 12 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 8 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 7 mv db V mv ma μs μs ns ns 4
SGM871 ELECTRICAL CHARACTERISTICS: V S =.V (At T A = 2 C, +V S =.V, -V S = V, V CM = +V S/2 and V O = -V S, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V CM =.3V 3 2 Supply Current I S na V CM = 4.7V 3 2 Input Offset Voltage V OS V CM = V -3. 3 V CM = V -3. 3 Input Offset Average Drift 2 µv/ Common Mode Rejection Ratio CMRR V CM Stepped from V to 3.9V 8 V CM Stepped from 4.4V to.v 8 V CM Stepped from V to.v 8 Power Supply Rejection Ratio PSRR V S = 1.8V to.v, V CM = V 66 9 db Large Signal Voltage Gain A VO 1 db Output Swing High Output Swing Low Output Current V OH V OL I OUT I O = μa 4.923 4.92-4 T A 4.916 I O = 1mA 4.864 4.94-4 T A 4.848 I O = -μa 2 8-4 T A 9 I O = -1mA 14 13-4 T A 143 Source 14 18-4 T A 12.1 Sink 1 19-4 T A 12.9 Propagation Delay Overdrive = 1mV 13 (High to Low) Overdrive = 1mV 6 Propagation Delay Overdrive = 1mV 42 (Low to High) Overdrive = 1mV 33 Rise Time Fall Time t Rise t Fall Overdrive = 1mV, C L = 3pF, R L = 1MΩ 8 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 8 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 7 Overdrive = 1mV, C L = 3pF, R L = 1MΩ 6 mv db V mv ma μs μs ns ns
SGM871 SIMPLIFIED SCHEMATIC DIAGRAM +V S + - INVERTERS OUTPUT I NN I NP + - -V S 6
SGM871 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current (na) 6 4 3 2 1 Supply Current vs. Supply Voltage V CM =.8V -4 1 2 3 4 6 Supply Voltage (V) Supply Current (na) Supply Current vs.common Mode Input 4 3 2-4 1. 1 1. Common Mode Input (V) 4 Supply Current vs. Common Mode Input Supply Current vs. Common Mode Input Supply Current (na) 4 3 3 2 2 1 V S = 2.V -4 1. 1 1. 2 2. Common Mode Input (V) Supply Current (na) 4 4 3 3 2 2 1 1-4 1 2 3 4 Common Mode Input (V) Output Current Sinking (ma) 2 2 1 1 Short Circult Sinking Current vs. Supply Voltage -4 Output Current Sourcing (ma) 2 2 1 1 Short Circult Sourcing Current vs. Supply Voltage -4 1 2 3 4 6 Supply Voltage (V) 1 2 3 4 6 Supply Voltage (V) 7
SGM871 TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage Referenced to GND (V) Output Voltage Low vs. Sink Current.6..4.3 V S = 2.V.2.1 1 2 3 4 6 Sink Current (ma) Output Voltage Referenced to GND (V).6..4.3.2.1 Output Voltage Low vs. Sink Current -4 1 2 3 4 6 Sink Current (ma) Output Voltage Referenced to V S (V).6..4.3.2.1 Output Voltage High vs. Source Current V S = 2.V 1 2 3 4 6 Source Current (ma) Output Voltage Referenced to V S (V).6..4.3.2.1 Output Voltage High vs. Source Current -4 1 2 3 4 6 Source Current (ma) Propagation Delay L H (µs) 9 7 6 4 3 1 Propagation Delay vs. Supply Voltage V CM = V S /2 V OD = 2mV -4 1 2 3 4 6 Supply Voltage (V) Propagation Delay H L (µs) 2 17 14 11 8 Propagation Delay vs. Supply Voltage V CM = V S /2 V OD = 2mV -4 1 2 3 4 6 Supply Voltage (V) 8
SGM871 TYPICAL PERFORMANCE CHARACTERISTICS 6 4 3 2 1 Propagation Delay vs. Overdrive -4 V CM =.V 1 2 3 4 Overdrive (mv) 2 2 1 1 Propagation Delay vs. Overdrive -4 V CM =.9V 1 2 3 4 Overdrive (mv) 7 6 4 3 2 1 Propagation Delay vs. Overdrive -4 V S = 2.V V CM =.V 1 2 3 4 Overdrive (mv) 6 4 3 2 1 Propagation Delay vs. Overdrive -4 V CM = 4.V 1 2 3 4 Overdrive (mv) 9 8 7 6 4 3 2 1 Propagation Delay vs. Overdrive -4 V CM =.V 1 2 3 4 Overdrive (mv) Offset Voltage (μv) 1 8 6 4 2 Offset Voltage vs. Common Mode Input -4 1 2 3 4 Common Mode Input (V) 9
SGM871 TYPICAL PERFORMANCE CHARACTERISTICS 4 3 2 1 Propagation Delay vs. Common Mode Input -4 V OD = 2mV.3.6.9 1.2 1. Common Mode Voltage (V) 6 4 3 2 1 Propagation Delay vs. Common Mode Input -4 V S = 2.V V OD = 2mV. 1 1. 2 2. Common Mode Voltage (V) 8 Propagation Delay vs. Common Mode Input 2 Propagation Delay vs. Common Mode Input 7 6 4 3 2 1 V OD = 2mV -4 1 2 3 4 Common Mode Voltage (V) Propagation Delay H-L (μs) 1 1 V OD = 2mV -4 1 2 3 4 Common Mode Voltage (V) Propagation Delay (µs) 3 3 2 2 1 1 Propagation Delay vs. Overdrive L-H H-L V CM = V S /2 1 1 1 1 Overdrive (mv) Propagation Delay (µs) 6 4 3 2 1 Propagation Delay vs. Overdrive L-H H-L V CM = V S /2 1 1 1 1 Overdrive (mv) 1
SGM871 TYPICAL PERFORMANCE CHARACTERISTICS Propagation Delay (µs) Propagation Delay vs. Resistive Load 18 16 14 L-H 12 1 H-L 8 6 4 2 1 1 1 1 1 Resistive Load (kω) Propagation Delay (µs) Propagation Delay vs. Resistive Load 3 3 L-H 2 2 1 H-L 1 1 1 1 1 1 Resistive Load (kω) 11
SGM871 PACKAGE OUTLINE DIMENSIONS SOT-23- D 1.9 e1 E1 E 2.9.99 b e.69.9 RECOMMENDED LAND PATTERN (Unit: mm) L A A1 A2 θ.2 c Dimensions In Millimeters Dimensions In Inches Symbol MIN MAX MIN MAX A 1. 1.2.41.49 A1..1..4 A2 1. 1.1.41.4 b.3..12.2 c.1.2.4.8 D 2.82 3.2.111.119 E 1. 1.7.9.67 E1 2.6 2.9.14.116 e.9 BSC.37 BSC e1 1.9 BSC.7 BSC L.3.6.12.24 θ 8 8 12
SGM871 PACKAGE OUTLINE DIMENSIONS SC7- D e e1.6 E1 E 1.9 b.7.4 1.3 RECOMMENDED LAND PATTERN (Unit: mm) L L1 A A1 A2 θ.2 c Symbol Dimensions In Millimeters Dimensions In Inches MIN MAX MIN MAX A.9 1.1.3.43 A1..1..4 A2.9 1..3.39 b.1.3.6.14 c.8.1.3.6 D 2. 2.2.79.87 E 1.1 1.3.4.3 E1 2.1 2.4.8.96 e.6 TYP.26 TYP e1 1.3 BSC.1 BSC L.2 REF.21 REF L1.26.46.1.18 θ 8 8 13
SGM871 TAPE AND REEL INFORMATION REEL DIMENSIONS TAPE DIMENSIONS P2 P W Q1 Q2 Q1 Q2 Q1 Q2 B Q3 Q4 Q3 Q4 Q3 Q4 Reel Diameter P1 A K Reel Width (W1) DIRECTION OF FEED NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF TAPE AND REEL Package Type Reel Diameter Reel Width W1 A B K P P1 P2 W Pin1 Quadrant SOT-23-7 9. 3.2 3.2 1.4 4. 4. 2. 8. Q3 SC7-7 9. 2.2 2. 1.2 4. 4. 2. 8. Q3 14
SGM871 CARTON BOX DIMENSIONS NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF CARTON BOX Reel Type Length Width Height Pizza/Carton 7 (Option) 368 227 224 8 7 442 41 224 18 1