The SFH6916 is a 4-channel Phototransistor Output Optocoupler has a GaAs infrared emitter, which is optically coupled to a silicon planar phototransistor detector. It features a high current transfer ratio, low coupling capacitance and high isolation voltage. The coupling device is designed for signal transmission between two electrically separated circuits.

• Low saturation voltage
• Fast switching times
• Temperature stable

Comparator General Purpose CMOS, Push-Pull, Rail-to-Rail 14-TSSOP

The TLV370x is Texas Instruments’ first family of nanopower comparators with only 560 nA per channel supply current, which make this device ideal for battery power and wireless handset applications. The TLV370x has a minimum operating supply voltage of 2.7 V over the extended industrial temperature range (TA = –40°C to 125°C), while having an input common-mode range of –0.1 to VCC + 5 V. The low supply current makes it an ideal choice for battery-powered portable applications where quiescent current is the primary concern.

Reverse battery protection guards the amplifier from an overcurrent condition due to improper battery installation. For harsh environments, the inputs can be taken 5 V above the positive supply rail without damage to the device.

All members are available in PDIP and SOIC with the singles in the small SOT-23 package, duals in the MSOP, and quads in the TSSOP package.

The AD8244BRMZ is a low power FET input quad Unity-gain Buffer designed to isolate very large source impedances from the rest of the signal chain. The 2pA maximum bias current, near zero current noise and 10 TΩ input impedance introduce almost no error, even with source impedance well into the megaohms. Many traditional operational amplifier pinouts have a supply pin that is next to the non-inverting input. A guard trace must be routed between these pins to avoid leakage currents much larger than the bias current of a FET input op amp. The AD8244 solves this problem with unique pinout that physically separates the high impedance inputs from the low impedance supplies and outputs of the other buffers. The AD8244 design is focused on solving problems specific to buffers. This includes close channel-to-channel matching which allows channels of the AD8244 to be used in differential signal chains with minimal error.

• Extremely high input impedance
• Low noise
• High DC precision – 3μV/°C maximum offset drift (B grade)
• No leakage from inputs to supply pins
• Provides guarding capability
• Rail-to-rail output
• Single-supply operation – Input range extends to ground
• 250μA Maximum supply current per amplifier
• 2pA Maximum input bias current at 25°C