LH0084

o ooc~o :I: ~National ~ Semiconductor ..J -~ oCoO LH0084/LH0084C Digitally-Programmable-Gain :I: ..J Instrumentation Amplifier Amplifiers General Description The LH0084/LH0084C is a self-contained, high speed, high accuracy, digitally-programmable-gain instrumentation amplifier. It consists of paired FET-input variable-gain voltage-follower input stages followed by a differential-tosingle-ended output stage. The input stage is programmable in accurate gain stepsof1,2,5,or10controlled by the logic levels of a 2-bit TTL-compatible digital input word. For additional flexibility, the output stage is pin-strappable to fixed gains of 1, 4, or 10 for an overall gain range of 1 to 100. Applications include increased dynamic range A-to-O converters, test systems, and post multiplexer amplifier for data acquisition systems. The device exhibits high input impedance, low offset voltage, high CMRR and PSRR, high speed, and excellent gain accuracy and gain non-linearity. The LH0084 is guaranteed from - 55°C to + 125°C. The LH0084C is guaranteed from - 25°C to + 85 DC. Both devices are provided in a hermetically sealed 16-lead dual- in-line metal package. Features Excellentgainaccuracy and gain non-linearity Extremelylowgaindrift High input impedance HighCMRRand PSRR TTL compatible digital inputs Highspeed,settiingtoO.1% 0.05% max 0.01 %typ 1ppmlOCtyp 10ppm/oCmax 10110typ 70dBmin Simplified Schematic Connection Diagram Dual-In-Line Package R6 R4 IS A4 OIGITAL ...