Datasheet MAX917, MAX918, MAX919, MAX920 (Maxim) - 9
| Manufacturer | Maxim |
| Description | SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference |
| Pages / Page | 15 / 9 — SOT23, 1.8V, Nanopower, Beyond-the-Rails. Comparators With/Without … |
| Revision | 2 |
| File Format / Size | PDF / 226 Kb |
| Document Language | English |
SOT23, 1.8V, Nanopower, Beyond-the-Rails. Comparators With/Without Reference. MAX917–MAX920. Functional Diagrams
Model Line for this Datasheet
Text Version of Document
SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference MAX917–MAX920 Functional Diagrams
VCC VCC IN+ IN+ OUT OUT REF IN- MAX917 MAX919 MAX918 MAX920 REF 1.245V VEE VEE
Pin Description PIN MAX917/MAX918 MAX919/MAX920 NAME FUNCTION SOT23-5 SO SOT23-5 SO
1 6 1 6 OUT Comparator Output 2 4 2 4 VEE Negative Supply Voltage 3 3 3 3 IN+ Comparator Noninverting Input — — 4 2 IN- Comparator Inverting Input 4 2 — — REF 1.245V Reference Output and Comparator Inverting Input 5 7 5 7 VCC Positive Supply Voltage — 1, 5, 8 — 1, 5, 8 N.C. No Connection. Not internally connected.
Detailed Description
output stage that sinks as well as sources current. The MAX918/MAX920 have an open-drain output stage that The MAX917/MAX918 feature an on-board 1.245V can be pulled beyond V ±1.5% reference, yet draw an ultra-low supply current CC to an absolute maximum of 6V above V of 750nA. The MAX919/MAX920 (without reference) EE. These open-drain versions are ideal for implementing wire-ORed output logic functions. consume just 380nA of supply current. All four devices are guaranteed to operate down to +1.8V. Their com-
Input Stage Circuitry
mon-mode input voltage range extends 200mV The input common-mode voltage range extends from beyond-the-rails. Internal hysteresis ensures clean out- VEE - 0.2V to VCC + 0.2V. These comparators operate put switching, even with slow-moving input signals. at any differential input voltage within these limits. Input Large internal output drivers allow rail-to-rail output bias current is typically ±0.15nA if the input voltage is swing with up to ±8mA loads. between the supply rails. Comparator inputs are pro- The output stage employs a unique design that mini- tected from overvoltage by internal ESD protection mizes supply-current surges while switching, virtually diodes connected to the supply rails. As the input volt- eliminating the supply glitches typical of many other age exceeds the supply rails, these ESD protection comparators. The MAX917/MAX919 have a push-pull diodes become forward biased and begin to conduct.
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VCC VCC IN+ IN+ OUT OUT REF IN- MAX917 MAX919 MAX918 MAX920 REF 1.245V VEE VEE
Pin Description PIN MAX917/MAX918 MAX919/MAX920 NAME FUNCTION SOT23-5 SO SOT23-5 SO
1 6 1 6 OUT Comparator Output 2 4 2 4 VEE Negative Supply Voltage 3 3 3 3 IN+ Comparator Noninverting Input — — 4 2 IN- Comparator Inverting Input 4 2 — — REF 1.245V Reference Output and Comparator Inverting Input 5 7 5 7 VCC Positive Supply Voltage — 1, 5, 8 — 1, 5, 8 N.C. No Connection. Not internally connected.
Detailed Description
output stage that sinks as well as sources current. The MAX918/MAX920 have an open-drain output stage that The MAX917/MAX918 feature an on-board 1.245V can be pulled beyond V ±1.5% reference, yet draw an ultra-low supply current CC to an absolute maximum of 6V above V of 750nA. The MAX919/MAX920 (without reference) EE. These open-drain versions are ideal for implementing wire-ORed output logic functions. consume just 380nA of supply current. All four devices are guaranteed to operate down to +1.8V. Their com-
Input Stage Circuitry
mon-mode input voltage range extends 200mV The input common-mode voltage range extends from beyond-the-rails. Internal hysteresis ensures clean out- VEE - 0.2V to VCC + 0.2V. These comparators operate put switching, even with slow-moving input signals. at any differential input voltage within these limits. Input Large internal output drivers allow rail-to-rail output bias current is typically ±0.15nA if the input voltage is swing with up to ±8mA loads. between the supply rails. Comparator inputs are pro- The output stage employs a unique design that mini- tected from overvoltage by internal ESD protection mizes supply-current surges while switching, virtually diodes connected to the supply rails. As the input volt- eliminating the supply glitches typical of many other age exceeds the supply rails, these ESD protection comparators. The MAX917/MAX919 have a push-pull diodes become forward biased and begin to conduct.
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