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Products of the day 05/07/2009 01:13:01

LM3914 Bargraph Display for £4.56 - An LED driver that will sequentially light ten LEDs when a gradually increasing voltage is applied to pin 5, (dot mode) or in bar mode all LEDs indicating voltages below input are lit. In dot mode there is a slight overlap so that at no point are all LEDs extinguished. A brightness control will set

CA3140EZ for £2.19 - A MOSFET input, bipolar output op-amp that will directly replace the 741 in most applications. It will operate from single or dual supply rails and input terminals can be swung up to 0.5V below negative rail. Internally compensated. Max input terminal current is 1mA. The output can be strobed. Suppl

K1803 Universal Mono Pre-Amplifier for £4.99 - Ideally suited as microphone amplifier signal matching of tuner or tape outputs, etc. Gain: typ. 40dB. Adjustable output level. Frequency range: 20Hz to 20kHz (±3dB). Max. input signal: 40mV. Power supply: 10 to 30Vdc, regulated.

LF351N & LF347N for £1.05 - Low-cost high performance JFET input op-amps that will directly replace and out-perform the 741 in most applications. The devices are low noise, have distortion figures of less than 0.02% over the audio band, high slew rate (13V/µs), high input impedance (1012Ω) and wide bandwidth. For t

4 1/2 Digit Counter for £11.52 - A 41/2-digit counter capable of directly driving an LCD display. The maximum count is 19,999, and the input frequency can be up to 25MHz typically. Chips can be cascaded to provide higher maximum counts.

L293D Stepper Motor Driver for £3.6 - The L293D is a monolithic integrated high voltage, high current, 4-channel driver designed to accept standard DTL or TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors and for switching power transistors. To simplify use as two bridges, each pair of channels

LM13700N for £1.93 - The 13700 is a dual operational transconductance amplifier with linearising diodes and buffers. It consists of two current controlled transconductance amplifiers, each with different inputs and a push pull output. The two amplifiers share common supplies, but otherwise operate independently. Lineari

LM311N for £0.54 - A voltage comparator that has input currents more than a hundred times lower than the 710. It will operate on ±14V or +5V supplies and will drive RTL, DTL, TTL, MOS and switch voltages up to 40V at currents as high as 50mA. Both input and output can be isolated from system ground and the outp

LM339N for £0.74 - Four independent precision voltage comparators with a typical input offset voltage of 2mV, and designed to operate from a single power supply. The input common-mode voltage range includes ground, even though operated from a single power supply voltage. Identical to the 3302, but offering improved su

LM393N for £0.74 - An independent precision voltage comparator designed specifically to operate from a single power supply over a wide range of voltages. Operation from split rails is possible and the low power supply current drain is independent of the magnitude of the power supply voltage. Unique to the LM393 is tha