low cost op amp for portable equipment

{"cid":"91149516","title":"AD8532ARZ Dual 250mA Rail-to-Rail Output Op Amp 3V to 6V Single Supply Low Cost Drives Heavy Capacitive Loads Ideal for Portable Equipment Audio and USB Devices","imgUrl":"https:\/\/img.chinax.com\/nimg\/fa\/36\/6c89a07131df1e1db8d801f2fdec-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Analog Devices","Model Number":"AD8532ARZ","Minimum Order Quantity":"1","Delivery Time":"3-5 working days after received the payment","Certification":"CE, GCF, ROHS","Place of Origin":"China","Payment Terms":"T\/T, Western Union,","Supply Ability":"1000pcs per month","Packaging Details":"Packed in original tray firstly ,then carton, at last Bubble bag for outer packing","Function":"Step-Up, Step-Down","Output Configuration":"Positive or Negative","Topology":"Buck, Boost","Output Type":"Adjustable","Number of Outputs":"1"}}

{"cid":"91219512","title":"MAX9914EXK+T IC OPAMP GP 1 CIRCUIT SC70-5 Analog Devices Inc.\/Maxim Integrated","imgUrl":"https:\/\/img.chinax.com\/nimg\/d8\/75\/1238a4e7d8a38bcc05044ef55d1b-200x200-1.jpg","attrs":{"Price":"Based on current price","Brand Name":"Analog Devices Inc.\/Maxim Integrated","Model Number":"MAX9914EXK+T","Minimum Order Quantity":"1","Delivery Time":"3-5 work days","Payment Terms":"T\/T","Supply Ability":"In stock","Packaging Details":"anti-static bag & cardboard box","Amplifier Type":"General Purpose","Number of Circuits":"1","Output Type":"Rail-to-Rail","Slew Rate":"0.5V\/\u00b5s","Gain Bandwidth Product":"1 MHz","-3db Bandwidth":"-","Current - Input Bias":"1 pA","Voltage - Input Offset":"200 \u00b5V","Current - Supply":"20\u00b5A","Current - Output \/ Channel":"-","Voltage - Supply Span (Min)":"1.8 V","Voltage - Supply Span (Max)":"5.5 V","Operating Temperature":"-40\u00b0C ~ 85\u00b0C","Mounting Type":"Surface Mount","Package \/ Case":"5-TSSOP, SC-70-5, SOT-353","Supplier Device Package":"SC-70-5"}}