NTE867 Datasheet | NTE Electronics

Description : The NTE867 is a linear inetgrated circuit that has three major sections for interfacing television tuning systems: an input op- amp, a band- select switch, and an internally referenced quad- parator. The op- amp output voltage has a wide dynamic range with a 3m A source or sink capability and can be clamped to three discrete levels in response to logic inputs. The op- amp also has internal bias reference and phase pensation. High impedance PMOS input transistors are protected by input limiting diode clippers. The band- select switch has two logic inputs controlling four outputs: VHF B+, VHF HIGH, SUPERBAND CATV, and UHF B+. The VHF B+ and UHF B+ outputs are current sources which are short- circuit protected by current limiting. VHF HIGH and SUPERBAND CATV outputs are current sinks with low off- state leakage. The quad parator features internal reference bias, low output leakage, and a 6m A current sinking capability. The outputs of two of the parators are internally connected to form a window parator. Features : D Input op- amp: high impedance PMOS input transistors and internal reference bias D Low input bias current and internal diode protection at op- amp inputs D High op- amp output voltage swing (0.7- 28.0V) with 3m A source sink capability D Three op- amp output voltage logic- controlled clamp levels D Logic- controlled bandswitching with four seperate outputs D Two bandswitch output current sinks D Two bandswitch current- limited output current sources D Internally referenced quad parator D Low drive current input requirement D Low output leakage D High output current sink capability D Bipolar and PMOS processes on a single chip Absolute Maximum Ratings: (TA = +25°C, unless otherwise specified) Supply Current, ISS - - - - - - - - - - - - . . . 20m A Supply Voltage (Pin 8), VCC - - - - - - - - - . . ....