Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS Offset Voltage V > OS 20 mV Input Bias Current I > B 50 nA Voltage Gain A > VO 0.985 V/V OUTPUT CHARACTERISTICS Output Voltage High V > OH I > LOAD = +20 mA 4.8 V Output Voltage Low V > OL I > LOAD = ТȒ20 mA 200 mV Output Short-Circuit Current I > SC 120 350 mA POWER SUPPLY Load Regulation V > IN = 0.5 V to 4.5 V, I > SOURCE = 20 mA 7 mV V > IN = 0.5 V to 4.5 V, I > SINK = 20 mA 7 mV Supply Current I > SY AD8509, V > IN = 2.5 V 8.5 mA I > SY AD8511, V > IN = 2.5 V 10 mA Supply Voltage Range V > S 3.3 6.5 V DYNAMIC PERFORMANCE...

Parameter Rating Supply Voltage 7 V > Input Voltage GND to V > S Storage Temperature Range > TSSOP (RV-48) − 65C to +150аC 48-Lead, Pb-Free SSOP (RV-48) 115 42 C/W Package Type Ў > JA ؎ > JC Unit Operating Temperature Range آȒ 40C to +85аC 48-Lead, Pb-Free LFCSP (CP-48-1) 125 29 C/W Junction Temperature Range TSSOP (RV-48) Package ТȒ 65C to +150аC Lead Temperature Range > (Soldering, 60 sec) 300C A/B Select Input Logic High INAx Logic Low INBx > ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can...

10987654335֖15525456585105 1k1001010.1100101 V > S =5VR V > S =5VT > L =NOLOAD > A =25C SOURCE SINK > SUPPLY CURRENT (mA) OUTPUT VOLTAGE (mV) 03237-003 03237-005 TEMPERATURE(аC) LOADCURRENT(mA) >

The AD8509 and AD8511 are CMOS buffers with A/B inputs that are used to select between two different reference voltages set up by an external resistor ladder. Input bias currents are orders of magnitude less than competitive parts. This allows very large resistor ladders to be used to save supply current. A guaranteed value of 50 nA is much higher than actual values and is limited by leakage in the test system. Buffer outputs are designed to drive resistive loads. They are also stable with capacitive loads, so no resistors should be used in series with these outputs to attain the best display...

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