MAX40001AUT22+T

Click here to ask about the production status of specific part numbers. MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference General Description Benefits and Features The MAX40000/MAX40001 are tiny, single comparators with built-in voltage references that are ideal for a wide variety of portable electronics applications, such as cell phones, portable instruments, and notebooks that have extremely tight board space and power constraints. The MAX40000/MAX40001 are available in a 6-bump waferlevel package (WLP) with 1.11mm x 0.76mm footprint and a 6-pin SOT23 package. The MAX40000 has a push-pull output and the MAX40001 has an open-drain output. ● Micropower Operating Current (0.9μA typ, 1.7μA max) Preserves Battery Power ● Tiny 1.11mm x 0.76mm 6-Bump WLP and SOT23 Packages Save Board Space ● Internal Precision Reference Saves Space and Cost of an External Reference • < 1% at Room Temperature, < 2.5% Over Temp Reference • Multiple Reference Voltages (1.252V, 1.66V, 1.94V, and 2.22V) The devices offer a supply voltage range from 1.7V to 5.5V and consume only 0.9μA of supply current. They also feature internal filtering to provide high RF immunity, important in many portable applications. The devices have a high-precision integrated reference that is factory trimmed to an initial accuracy of 1% and better than 2.5% over the entire temperature range. Internal reference voltage options include 1.252V, 1.66V, 1.94V, and 2.22V. See Ordering Information for help with ordering a MAX40000/MAX40001 with a particular voltage reference value and package type. The reference output is stable for capacitive loads up to 100pF. These devices are fully specified over -40°C to +125°C automotive temperature range. Applications ● ● ● ● ● ● Cell Phones Tablets and Consumer Accessories Notebook Computers Electronic Toys Portable Medical Instruments/Wearables Level Detectors 19-8610; Rev 6; 5/21 ● Input Voltage Range = -0.2V to 5.7V ● Supply Voltage Range (1.7V to 5.5V) Allows Operation from 1.8V, 2.5V, 3V, and 5V Supplies ● 1.8V, guaranteed by PSRR specification VREF + 0.1 5.5 No output or reference load current, TA = -40°C to +125°C V 0.9 5 1.7 µA µs Maxim Integrated | 8 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Electrical Characteristics (continued) (VDD = 3.3V, VCM = 0V, RPULLUP = 100kΩ from OUT to VPULLUP = 3.3V (for MAX40001 only), TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS -0.2 VDD + 0.2 V 0 VDD COMPARATOR Input Common-Mode Voltage Range Input Offset Voltage VCM TA = +25°C TA = -40°C to +125°C VOS Note 2 VCM = 0V to VDD -1V 8 VCM = VDD -1V to VDD, TA = 0°C to +85°C 10 VCM = VDD -1V to VDD, TA = -40°C to +125°C 14 Input Offset Drift Input Hysteresis VHYS Input Bias Current Note 3 Note 4 mV 27 µV/°C 2.5 mV VCM = -0.2V to VDD +0.2V, TA = +25°C 1 5 VCM = 0V to VDD, TA = -40°C to +85°C 1 5 VCM = 0.2V to VDD, TA = -40°C to +125°C 1 5 5 nA Input Offset Current Note 4 Input Capacitance Either input, over VCM range Power Supply Rejection Ratio PSRR DC, over the entire common-mode input voltage range 60 dB Common-Mode Rejection Ratio CMRR DC, over the entire common-mode input voltage range 46 dB 1.5 nA pF Output Voltage Swing Low VOL Sinking 2mA output current, VOUT VGND 0.4 V Output Voltage Swing High VOH Sourcing 2mA output current, VDD - VOUT 0.4 V Open-drain only (MAX40001), VDD = 1.8V, VO = 5.5V, TA = -40°C to +125°C 100 nA Output Leakage Current www.maximintegrated.com IO-LKG Maxim Integrated | 9 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Electrical Characteristics (continued) (VDD = 3.3V, VCM = 0V, RPULLUP = 100kΩ from OUT to VPULLUP = 3.3V (for MAX40001 only), TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS 100mV overdrive (Note 5) Propagation Delay tPD 20mV overdrive (Note 5) MIN TYP Output L->H, MAX40000 9.6 Output L->H, MAX40001, 100kΩ 14 Output H->L, MAX40000 3.2 Output L->H, MAX40000 9.9 Output L->H, MAX40001, 100kΩ 14.8 Output H->L, MAX40000 5.2 MAX UNITS µs Rise Time tR Push-pull output stage. 25% to 75% 300 ns Fall Time tF 25% to 75% 52 ns INTERNAL REFERENCE VOLTAGE MAX40000ANT12+ T TA = +25°C Reference Voltage VREF TA = -40°C to +85°C Reference Thermal Drift VREFTEMPCO 1.66 MAX4000_ _ _ _19+ 1.94 MAX4000_ _ _ _22+ 2.22 MAX4000_ _ _ _12+ 1.252 MAX4000_ _ _ _16+ 1.66 MAX4000_ _ _ _19+ 1.94 MAX4000_ _ _ _22+ 2.22 Load Regulation www.maximintegrated.com IVREFOUT = ±100nA 1.2645 V 1.2207 1.252 MAX4000_ _ _ _16+ 1.66 MAX4000_ _ _ _19+ 1.94 MAX4000_ _ _ _22+ 2.22 Over extended temperature range, TA = -40°C to +125°C Line Regulation 1.252 MAX4000_ _ _ _16+ MAX40000ANT12+ T TA = -40°C to +125°C 1.2395 1.2833 15 ppm/°C 1200 ppm/V 0.01 mV/nA Maxim Integrated | 10 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Electrical Characteristics (continued) (VDD = 3.3V, VCM = 0V, RPULLUP = 100kΩ from OUT to VPULLUP = 3.3V (for MAX40001 only), TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS Output Current TYP MAX 0.1 Voltage Noise 0.1Hz to 10Hz Voltage Noise Density CREF = 1nF, 10Hz to 6kHz Capacitive Load Stability MIN UNITS µA 82 µVP-P 2.19 µV/√Hz 100 pF Note 1: All specifications are 100% production tested at TA = +25°C. Specification limits over temperature (TA = TMIN to TMAX) are guaranteed by design, not production tested. Note 2: Input offset voltage; VOS is defined as the center of the hysteresis band or average of the threshold trip points. Note 3: The hysteresis-related trip points are defined as the edges of the hysteresis band, measured with respect to the center of the band (i.e., VOS) (Figure 1). Note 4: Guaranteed by design and characterization. Note 5: Specified with an input overdrive (VOVERDRIVE) of 100mV and 20mV, and load capacitance of CL = 15pF. VOVERDRIVE is defined above the offset voltage and hysteresis of the comparator input. For the MAX40000/MAX40001, reference voltage error should also be added. www.maximintegrated.com Maxim Integrated | 11 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Typical Operating Characteristics (VDD = 3.3V, RPULLUP = 100kΩ from OUT to VPULLUP = 3.3V (for MAX40001 only), TA = +25°C, unless otherwise noted.) www.maximintegrated.com Maxim Integrated | 12 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Typical Operating Characteristics (continued) (VDD = 3.3V, RPULLUP = 100kΩ from OUT to VPULLUP = 3.3V (for MAX40001 only), TA = +25°C, unless otherwise noted.) www.maximintegrated.com Maxim Integrated | 13 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Typical Operating Characteristics (continued) (VDD = 3.3V, RPULLUP = 100kΩ from OUT to VPULLUP = 3.3V (for MAX40001 only), TA = +25°C, unless otherwise noted.) www.maximintegrated.com Maxim Integrated | 14 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Typical Operating Characteristics (continued) (VDD = 3.3V, RPULLUP = 100kΩ from OUT to VPULLUP = 3.3V (for MAX40001 only), TA = +25°C, unless otherwise noted.) Pin Configurations BUMP (WLP) TOP VIEW (BUMPS ON BOTTOM) 1 2 3 A IP VDD OUT B IM REF GND + MAX40000 MAX40001 WLP www.maximintegrated.com Maxim Integrated | 15 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference PIN (SOT23) (TOP VIEW) + IM 1 GND 2 REF 3 6 IP MAX40000 MAX40001 5 VDD 4 OUT SOT23 Pin Description PIN NAME FUNCTION BUMP (WLP) PIN (SOT23) B1 1 IM B2 3 REF Internal Voltage Reference Output. Bypass REF pin with a 0.1μF capacitor to GND as close as possible to the device. B3 2 GND Ground A1 6 IP A2 5 VDD VDD Supply Voltage. Bypass VDD with a 0.1μF capacitor to GND as close as possible to the device pin. A3 4 OUT Open-Drain Output (MAX40001)/Push-Pull Output (MAX40000). For the opendrain version, connect a 100kΩ pullup resistor from OUT to any pullup voltage up to 5.5V. Inverting Input of Comparator Noninverting Input of Comparator Functional Diagram VDD IM OP IP RF MAX40000 MAX40001 REF GND www.maximintegrated.com Maxim Integrated | 16 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Detailed Description The MAX40000/MAX40001 feature an on-board voltage reference with ±1% initial accuracy. This family of comparators with internal references are available in multiple voltage reference options. The Ordering Information table provides exact part numbers associated with a particular voltage reference option. The common-mode voltage range of this family extends 200mV beyond the rails, allowing signals slightly beyond the rails to trigger the comparator. The 2.5mV internal hysteresis ensures clean output switching even with slow moving input signals. Large internal output drivers allow rail-torail output swing with up to ±2mA loads. The output stage employs a unique design that minimizes supply current surges while switching, virtually eliminating supply glitches typical of many other comparators. The MAX40000 has a push-pull output stage that sinks as well as sources current. The MAX40001 has an open-drain output stage that can be pulled beyond VDD to a maximum of 5.5V above GND. Multiple comparators with open-drain outputs (OUT) can be connected together in parallel and share a single pullup resistor. This enables user to detect if there is any fault if at least one comparator trips different to other comparators. Input Stage Circuitry The input common-mode voltage range extends from - 0.2V to VDD + 0.2V. These comparators operate at any differential input voltage within these limits. Input bias current is typically ±1nA if the input voltage is between the supply rails. Output Stage Structure The devices contain a unique break-before-make output stage capable of rail-to-rail operation with up to ±2mA loads. Many comparators consume orders of magnitude more current during switching than during steady-state operation. In the Typical Operating Characteristics, the Supply Current graphs show the minimal supply-current increase as the output switching frequency approaches 1kHz. This characteristic reduces the need for power-supply filter capacitors to reduce glitches created by comparator switching currents. In battery-powered applications, this characteristic results in a substantial increase in battery life. Voltage Reference The MAX40000/MAX40001 come with different internal voltage reference options that has initial accuracy of ±1%. 1.252V, 1.6V, 1.9V, and 2.2V options of internal voltage references are available. The devices’ internal reference has a typical temperature coefficient of 15ppm/°C over the full -40°C to +125°C temperature range. The reference is a very-low-power bandgap cell, with a maximum 10kΩ output impedance. REF pin can source and sink up to 100nA to external circuitry. For applications that need increased drive, buffer REF with a low input-bias current op amp such as the MAX44265. Most applications require no bypass capacitor on REF pin. www.maximintegrated.com Maxim Integrated | 17 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Applications Information Battery-Powered Operation The MAX40000 and MAX40001 are ideally suited for use with most battery-powered systems. Table 1 lists Alkaline and Lithium-Ion batteries with capacities and approximate operating times for MAX40000 and MAX40001, assuming nominal conditions. Internal Hysteresis Many comparators oscillate in the linear region of operation because of noise or undesired parasitic feedback. This tends to occur when the voltage on one input is equal or very close to the voltage on the other input. The MAX40000/MAX40001 have internal 2.5mV hysteresis to counter parasitic effects and noise. The hysteresis in a comparator creates two trip points: one for upper threshold (VTRIP+) and one for lower threshold (VTRIP-) for voltage transitions on the input signal (Figure 1). The difference between the trip points is the hysteresis band (VHYS). When the comparator’s input voltages are equal, the hysteresis effectively causes one comparator input to move quickly past the other, thus taking the input out of the region where oscillation occurs. Figure 1 illustrates the case in which IM has a fixed voltage applied, and IP is varied. If the inputs were reversed, the figure would be the same, except with an inverted output. Adding External Hysteresis In applications requiring more than the internal 2.5mV hysteresis of the devices, additional hysteresis can be added with two external resistors. Since these comparators are intended to use in very low-power systems, care must be taken to minimize power dissipation in the additional circuitry. Regardless of which approach is employed to add external hysteresis, the external hysteresis will be VDD dependent. Over the full discharge range of battery-powered systems, the hysteresis can change as much as 40%. Figure 2 shown below is simplest circuit for adding external hysteresis. In this example, the hysteresis is defined by: RG Hysteresis = R × VDD F Where RG is the source resistance and RF is the feedback resistance. Because the comparison threshold is 1/2 VDD, the MAX40000 was chosen for its push-pull output and lack of reference. This provides symmetrical hysteresis around the threshold. VTRIP+ VHYS IP VOS = (VTRIP+ + VTRIP-)/2 IM VTRIP- VOH OUT VOL Figure 1. Hysteresis Band www.maximintegrated.com Maxim Integrated | 18 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Table 1. Battery Applications Using MAX40000 and MAX40001 BATTERY TYPE RECHARGEABLE VINITIAL (V) VEND-OFLIFE (V) CAPACITY, AA SIZE (mAh) MAX40000/MAX40001 OPERATING TIME (hr) Alkaline (2 Cells) No 3.0 1.8 2000 1.8 x 106 Lithium-Ion (1 Cell) Yes 3.5 2.7 1000 0.9 x 106 Output Considerations In most cases, the push-pull output of MAX40000 is best for external hysteresis. The open-drain output of the MAX40001 can be used, but the effect of the feedback network and pullup resistor on the actual output high voltage must be considered. Component Selection Because the MAX40000/MAX40001 are intended for very low power-supply systems, the highest impedance circuits should be used wherever possible. The offset error due to input-bias current is proportional to the total impedance seen at the input. For example, selecting components for Figure 2, with a target of 50mV hysteresis, a 5V supply, and choosing an RF of 10MΩ gives RG as 100kΩ. The total impedance seen at IN+ is therefore 10MΩ || 100kΩ, or 99kΩ. The maximum input bias current of MAX40000/MAX40001 is 1nA; therefore, the error due to source impedance is less than 100μV. Board Layout and Bypassing Power-supply bypass capacitors are not typically needed, but use 100nF bypass capacitors close to the device’s supply pins when supply impedance is high, supply leads are long, or excessive noise is expected on the supply lines. Minimize signal trace lengths to reduce stray capacitance. A ground plane and surface-mount components are recommended. If the REF pin is decoupled, use a new low-leakage capacitor. Logic-Level Translator The Typical Application Circuit shows an application that converts 5V logic to 3V logic levels. The MAX40001 is powered by the +5V supply voltage to VDD, and the pullup resistor for the MAX40001’s open-drain output is connected to the +3V supply voltage. This configuration allows the full 5V logic swing without creating overvoltage on the 3V logic inputs. For 3V to 5V logic-level translations, simply connect the +3V supply voltage to VDD and the +5V supply voltage to the pullup resistor. RG RF VIN+ VDD MAX40000 VDD/2 Figure 2. External Hysteresis on MAX40000 www.maximintegrated.com Maxim Integrated | 19 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Typical Application Circuit 1.7V TO 5.5V VDD VPULL = 3V MAX40001 100kΩ 100kΩ IM OUT IP 100kΩ GND 5V (3V) LOGIC IN Ordering Information TEMP RANGE PINPACKAGE TOP MARK MAX40000ANT12+T -40°C to +125°C 6 WLP +N MAX40000ANT16+T* -40°C to +125°C 6 WLP +O MAX40000ANT19+T* -40°C to +125°C 6 WLP +P MAX40000ANT22+T* -40°C to +125°C 6 WLP +Q MAX40000AUT12+T -40°C to +125°C 6 SOT23 – MAX40000AUT16+T* -40°C to +125°C 6 SOT23 – MAX40000AUT19+T* -40°C to +125°C 6 SOT23 – MAX40000AUT22+T* -40°C to +125°C 6 SOT23 – MAX40001ANT12+T -40°C to +125°C 6 WLP +R MAX40001ANT16+T* -40°C to +125°C 6 WLP +S MAX40001ANT19+T* -40°C to +125°C 6 WLP +T MAX40001ANT22+T -40°C to +125°C 6 WLP +U MAX40001AUT12+T -40°C to +125°C 6 SOT23 – MAX40001AUT16+T* -40°C to +125°C 6 SOT23 – MAX40001AUT19+T* -40°C to +125°C 6 SOT23 – MAX40001AUT22+T -40°C to +125°C 6 SOT23 – PART +Denotes a lead (Pb)-free/RoHS-compliant package. T = Tape and reel. For example, the MAX40000ANT12+T has an onboard 1.2V reference voltage. Devices without “_ _” use external reference voltage as supply voltage. *Future product—contact factory for availability. www.maximintegrated.com Maxim Integrated | 20 MAX40000/MAX40001 1.7V, nanoPower Comparators with Built-In Reference Revision History REVISION NUMBER REVISION DATE 0 1/17 Initial release 1 3/17 Updated title to include “nanoPower” 1–14 2 4/17 Updated Ordering Information table 13 3 5/17 Updated Ordering Information table 4 8/17 Updated Functional Diagram and Ordering Information table 5 1/21 Added package outline drawings 6–8 6 5/21 Updated Electrical Characteristics table 9–10 DESCRIPTION PAGES CHANGED — 13 10, 13 For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2021 Maxim Integrated Products, Inc.