MAX44267 +15V Single-Supply, Dual Op Amp with 10V Output Range General Description Benefits and Features The MAX44267 precision, low-noise, low-drift dual opera- True Bipolar Output Greater than 10V from a Single tional amplifier offers true-zero output that allows the +15V Supply Eliminates Space and Cost of Negative output to cross zero maximizing the dynamic range of an Power Supply ADC and increasing resolution. In addition, the input com- True Zero Output from a Single Supply mon-mode range extends from +13.5V down to -12V. The High-Accuracy Sensing Over Temperature MAX44267 integrates charge-pump circuitry that gener- Low Input V : 50V (max) OS ates the negative voltage rail in conjunction with external Low 0.4V/C (max) of Offset Drift capacitors. This allows the amplifier to operate from a 9nV/Hz Low Input Noise at 1kHz Provides Wide single +4.5V to +15V power supply, but it is as effective ADC Dynamic Range as a normal dual-rail 4.5V to 15V amplifier. The archi- 5MHz Gain-Bandwidth Product Provides Wide tecture eliminates the need for a negative power-supply Frequency Input Range rail, saving system cost and size. Low 2.4mA (max) Quiescent Current Enables Lower The MAX44267 is unity-gain stable with a gain-bandwidth Power Dissipation and Cooler Operation product of 5MHz. The device features low offset voltage Integrated EMI Filter Reduces Sensitivity to Motors of 50V (max), drift of 0.4V/C (max), and 200nV P-P and Other High-Frequency Noise Generators noise from 0.1Hz to 10Hz. The low offset and noise specifications and wide input common-mode range make 14-Pin TSSOP Package with External Charge-Pump the device ideal for sensor transmitters and interfaces. Capacitors Enables Noise Optimization Varying the external charge pump capacitors enables the charge-pump noise to be minimized. Applications PLC Analog I/O Modules The MAX44267 is part of a family of signal chain ICs Sensor Interfaces including amplifiers, multiplexers and ADCs. These ICs Pressure Sensors eliminate the need for a negative supply to the multi- Bridge Sensors plexer, amplifier and ADC, saving space and cost. See Analog Level Shifting/Conditioning the Typical Application Circuit and Table 1 for more infor- mation. See the MAX44247 for the same amplifier with internal charge-pump capacitors in a small 8-pin MAX package. Block Diagram The MAX44267 is available in a 14-pin TSSOP package and is specified over the -40C to +125C operating tem- + perature range. 1 14 OUTA V DD CBYPASS AMPLIFIER A 2 CPVDD 13 INA- Ordering Information appears at end of data sheet. INA+ 3 12 OUTB 4 11 INB- GND AMPLIFIER B INB+ 5 10 CPGND 6 9 VSS CPVSS MAX is a registered trademark of Maxim Integrated Products, Inc. C FILT C HOLD 7 CP CN 8 MAX44267 CFLY 19-7455 Rev 0 11/14MAX44267 +15V Single-Supply, Dual Op Amp with 10V Output Range Absolute Maximum Ratings V to GND .......................................................-0.3V to +16.5V Continuous Power Dissipation (T = +70C) DD A CPVDD to GND ..................................................-0.3V to +16.5V 14-Pin TSSOP (derate 10mW/C above +70C) ......796.8mW CP, CN, CPVSS, V Input Current ...............................20mA Operating Temperature Range ......................... -40C to +125C SS Common-Mode Input Voltage.... (-V - 0.3V) to (+V + 0.3V) Junction Temperature ......................................................+150C DD DD Differential Input Current ..................................................20mA Storage Temperature Range .............................-65C to +150C Differential Input Voltage (Note 1) .........................................1V Lead Temperature (soldering, 10s) .................................+300C OUTA, OUTB to GND................ (-V - 0.3V) to (+V + 0.3V) Soldering Temperature (reflow) .......................................+260C DD DD Short-Circuit Duration, OUTA, OUTB to either Supply Rail .... 1s Note 1: The amplifier inputs are connected by internal back-to-back clamp diodes. In order to minimize noise in the input stage, current-limiting resistors are not used. If differential input voltages exceeding 1V are applied, limit input current to 20mA. Package Thermal Characteristics (Note 2) TSSOP Junction-to-Ambient Thermal Resistance ( ) .....100.4C/W Junction-to-Case Thermal Resistance ( ) ...............30C/W JA JC Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. 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 = V = 15V, V = 0V, V = GND, R = 5k to GND, C = 0.022F, C = 0.1F, C = 0.1F, T = -40C to DD CPVDD GND CM L FLY HOLD FILT A +125C, unless otherwise noted. Typical values are at T = +25C.) (Note 3) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC SPECIFICATIONS Power-Supply Voltage Input Range V Guaranteed by PSRR 4.5 15.5 V DD Charge-Pump Supply Voltage Input CPV 4.5 15.5 V DD Range (Note 4) V = 15V, R = -14.8 Charge-Pump Negative Supply DD L CPV V SS Output V = 5V, R = -4.8 DD L V = 15V, R = 5k -13 DD L Filtered Negative Supply Output V V SS V = 5V, R = 5k -3.6 DD L T = +25C 117 137 A Power-Supply Rejection Ratio PSRR dB +4.5V V DD -40C T +125C 112 A +15.5V T = +25C 2.4 3.6 A Total Quiescent Current I R = mA DD L -40C T +125C 4.0 A V = 15V -12.0 +13.5 Guaranteed by DD Input Common-Mode Range V V CM CMRR test V = 5V -2.0 +3.5 DD T = +25C 138 150 V = 15V, A DD dB V = -12V to +13.5V -40C T +125C 122 CM A Common-Mode Rejection Ratio CMRR T = +25C 125 140 V = 5V, A DD dB V = -2V to +3.5V -40C T +125C 118 CM A Maxim Integrated 2 www.maximintegrated.com