MAX941/MAX942/ High-Speed, Low-Power, 3V/5V, Rail-to-Rail, MAX944 Single-Supply Comparators General Description Features The MAX941/MAX942/MAX944 are single/dual/quad high- Available in MAX Package speed comparators optimized for systems powered from a Optimized for 3V and 5V Applications 3V or 5V supply. These devices combine high speed, low (Operation Down to 2.7V) power, and rail-to-rail inputs. Propagation delay is 80ns, Fast, 80ns Propagation Delay (5mV Overdrive) while supply current is only 350A per comparator. Rail-to-Rail Input Voltage Range The input common-mode range of the MAX941/MAX942/ Low 350A Supply Current per Comparator MAX944 extends beyond both power-supply rails. The Low, 1mV Offset Voltage outputs pull to within 0.4V of either supply rail without Internal Hysteresis for Clean Switching external pullup circuitry, making these devices ideal for interface with both CMOS and TTL logic. All input and Outputs Swing 200mV of Power Rails output pins can tolerate a continuous short-circuit fault CMOS/TTL-Compatible Outputs condition to either rail. Internal hysteresis ensures clean Output Latch (MAX941 Only) output switching, even with slow-moving input signals. Shutdown Function (MAX941 Only) The MAX941 features latch enable and device shutdown. The single MAX941 and dual MAX942 are offered in a Ordering Information tiny MAX package. Both the single and dual MAX942 PIN- are available in 8-pin DIP and SO packages. The quad PART TEMP RANGE PACKAGE MAX944 comes in 14-pin DIP and narrow SO packages. MAX941CPA 0C to +70C 8 PDIP Applications MAX941CSA 0C to +70C 8 SO 3V/5V Systems MAX941EPA -40C to +85C 8 PDIP Battery-Powered Systems MAX941ESA -40C to +85C 8 SO Threshold Detectors/Discriminators MAX941EUA-T -40C to +85C 8 MAX Line Receivers MAX941AUA-T -40C to +125C 8 MAX Zero-Crossing Detectors Sampling Circuits T = Tape and reel. Ordering Information continued at end of data sheet. MAX is a registered trademark of Maxim Integrated Products, Inc. Pin Configurations TOP VIEW MAX941 MAX942 OUTA OUTD 1 14 INA- 2 IND- 13 + 1 1 V 8 OUTA 8 + A D N.C. V + + INA 3 IND 12 + 2 2 7 7 IN OUT INA- OUTB + MAX944 A V GND 4 11 3 3 6 + 6 IN- GND INA INB- + + B INB INC 5 10 4 4 5 5 + SHDN LATCH GND INB B C INB- 6 9 INC- OUTB PDIP/SO/MAX PDIP/SO/MAX 7 8 OUTC PDIP/SO 19-0229 Rev 10 9/14MAX941/MAX942/ High-Speed, Low-Power, 3V/5V, Rail-to-Rail, MAX944 Single-Supply Comparators Absolute Maximum Ratings Power-Supply Ranges 8-Pin MAX (derate 4.1mW/C above +70C) ............330mW Supply Voltage V+ to GND .............................................+6.5V 14-Pin Plastic DIP (derate 10.00mW/C above +70C) ..800mW Differential Input Voltage .........................-0.3V to (V+ + 0.3V) 14-Pin SO (derate 8.33mW/C above +70C) .............667mW Common-Mode Input Voltage ..................-0.3V to (V+ + 0.3V) Operating Temperature Ranges LATCH Input (MAX941 only) ...................-0.3V to (V+ + 0.3V) MAX94 C ......................................................0C to +70C SHDN Control Input (MAX941 only) .........-0.3V to (V+ + 0.3V) MAX94 E .................................................. -40C to +85C Current Into Input Pins .....................................................20mA MAX94 AUA ................................................. -40C to +125C Continuous Power Dissipation (T = +70C) MAX942MSA ................................................ -55C to +125C A 8-Pin Plastic DIP (derate 9.09mW/C above +70C) ..727mW Storage Temperature Range ............................ -65C to +150C 8-Pin SO (derate 5.88mW/C above +70C) ...............471mW Lead Temperature (soldering, 10s) .................................+300C 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. Electrical Characteristics (V+ = 2.7V to 5.5V, T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 14) A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Positive Supply Voltage V+ 2.7 5.5 V Input Voltage Range V (Note 1) -0.2 V+ + 0.2 V CMR MAX94 C , MAX94 EP , 1 3 MAX94 ES , MAX942MSA T = +25C mV V = A CM MAX941 UA/MAX942 UA 1 4 Input-Referred Trip 0V or V TRIP Points V = V+ CM MAX94 C , MAX94 EP , 4 T = T (Note 2) A MIN MAX94 ES , MAX942MSA mV to T MAX MAX941 UA/MAX942 UA 6 MAX94 C , MAX94 EP , 1 2 MAX94 ES , MAX942MSA T = +25C mV A V = CM MAX941 UA/MAX942 UA 1 3 0V or Input Offset Voltage V OS V = V+ MAX94 C , MAX94 EP , CM 3 T = T (Note 3) A MIN MAX94 ES , MAX942MSA mV to T MAX MAX941 UA/MAX942 UA 5.5 MAX94 C 150 300 V = V , V = 0V or IN OS CM Input Bias Current I nA B V = V+ (Note 4) CM MAX94 E/A, MAX942MSA 150 400 Input Offset Current I V = V , V = 0V or V+ 10 150 nA OS IN OS CM Input Differential Clamp Force 100A into IN+, IN- = GND, V 2.2 V CLAMP Voltage measure V - V , Figure 3 IN+ IN- MAX94 C , MAX94 EP , 80 300 Common-Mode Rejection MAX94 ES , MAX942MSA CMRR (Note 5) V/V Ratio MAX941 UA/MAX942 UA 80 800 MAX94 C , MAX94 EP , PSRR 80 300 Power-Supply Rejection 2.7V V+ 5.5V, MAX94 ES , MAX942MSA V/V Ratio V = 0V CM MAX941 UA/MAX942 UA 80 350 I = 400A V+ - 0.4 V+ - 0.2 SOURCE Output High Voltage V V OH I = 4mA V+ - 0.4 V+ - 0.3 SOURCE I = 400A 0.2 0.4 SINK Output Low Voltage V V OL I = 4mA 0.3 0.4 SINK Output Leakage Current I (Note 6) 1 A LEAK Maxim Integrated 2 www.maximintegrated.com