The LT1259/LT1260 is a low-cost dual and triple 130MHz current feedback amplifier with shutdown function.
The LT1259 and LT1260 are low‑cost dual and triple 130 MHz current‑feedback amplifiers with shutdown capability. They are designed for high linearity, wide supply range (+2 V to +15 V) and can drive low‑impedance loads such as RGB video drivers.
The document includes absolute maximum ratings, detailed electrical characteristics, typical performance graphs, package dimensions, and application notes on feedback resistor selection, capacitive loads, power‑supply considerations, and slew‑rate behavior. It also provides a typical 2‑input video MUX application schematic and part number listings.
| Supply Voltage Range | +2 V (4 V) to +15 V (30 V) |
|---|---|
| Bandwidth | 90 MHz (at +5 V) |
| Output Current | 60 mA per amplifier |
| Slew Rate | 1600 V/µs |
| Turn‑On Time | 100 ns |
| Turn‑Off Time | 40 ns |
| Input Offset Voltage (typ) | 12 mV |
| Input Offset Voltage Drift | 30 µV/°C |
| Non‑inverting Input Current (typ) | 3 pA |
| Maximum Output Voltage Swing | +120 V to +140 V (Vg = +15 V) |
The amplifiers operate from +2 V (4 V total) up to +15 V (30 V total).
The typical slew rate is about 1600 V/µs when powered at +15 V with a gain of 10.
Each amplifier can source up to 60 mA of output current.