LINEAR Manuals

The LTC3542 is a 500mA, 2.25MHz synchronous step-down DC/DC converter using a constant frequency, current mode architecture for single Li-Ion battery-powered applications.

The LT1632/LT1633 are dual/quad, rail-to-rail input and output op amps with a 45MHz gain-bandwidth product and a 45V/µs slew rate. They have features such as low supply current per amplifier, input common mode range including both rails, rail-to-rail output swings, low input offset voltage, low input offset current, low input bias current, high open-loop gain, low input noise voltage, low distortion, wide supply range, and large output drive current.

This document introduces the features and characteristics of LTC2288/LTC2287/LTC2286, these three 10-bit, 65/40/25Msps, low noise 3V ADCs.

The LTC2053/LTC2053-SYNC is a high precision instrumentation amplifier from Linear Technology. The amplifier has a CMRR of 116dB and can be powered by a single or dual 5V supply. The gain is adjustable with two external resistors.

The LTC3210-2/LTC3210-3 is a low noise charge pump DC/DC converter designed to drive three or four MAIN LEDs and one high current CAM LED for camera lighting. The LTC3210-2/LTC3210-3 require only four small ceramic capacitors and two current set resistors to form a complete LED power supply and current controller. Built-in soft-start circuitry prevents excessive inrush cur- rent during start-up and mode changes. High switching frequency enables the use of small external capacitors. Independent MAIN and CAM full-scale current settings are programmed by two external resistors. Shutdown mode and current output levels are selected via two logic inputs. ENM and ENC are toggled to adjust the LED currents via internal counters and DACs. A 5-bit linear DAC (32 steps) provides high resolution brightness control for the MAIN display. The charge pump optimizes effi ciency based on the volt- age across the LED current sources. The part powers up in 1x mode and will automatically switch to boost mode whenever any enabled LED current source begins to enter dropout. The LTC3210-2/LTC3210-3 are available in a 3mm × 3mm 16-lead QFN package.

LT1208/LT1209 are dual and quad very high speed operational amplifiers with excellent DC performance. The LT1208/LT1209 feature reduced input offset voltage and higher DC gain than devices with comparable bandwidth and slew rate. Each amplifier is a single gain stage with outstanding settling characteristics. The fast settling time makes the circuit an ideal choice for data acquisition systems. Each output is capable of driving a 500Ω load to ±12V with ±15V supplies and a 150Ω load to ±3V on ±5V supplies. The amplifiers are also capable of driving large capacitive loads which make them useful in buffer or cable driver applications.

The LTC2051/LTC2052 are dual/quad zero-drift operational amplifiers suitable for thermocouple amplifiers, electronic scales, medical instrumentation, strain gauge amplifiers, high-resolution data acquisition, etc. They feature a maximum offset voltage of 3μV, a maximum offset voltage drift of 30nV/°C, small footprint, low-profile MS8/GN16 packages, single supply operation from 2.7V to ±5.5V, noise of 1.5μVP-P (0.01Hz to 10Hz), voltage gain of 140dB, PSRR of 130dB, CMRR of 130dB, supply current of 0.75mA (per amplifier), and an operating temperature range of -40°C to 85°C.

The LT6550/LT6551 are 3.3V triple and quad high speed video amplifiers. They feature 110MHz -3dB bandwidth, high slew rates and fast settling, making them ideal for RGB video processing.