MP7643

S a Programmable Gain at 2-Quadrant 4 Independent D Amplifiers Multiplying 8-Bit DACs with.Output Dual (+10 V and +5 V) Supplies or w Positive Dual (+5 V) Supplies Capability w High Speed: w – 12.5 MHz Digital Clock Rate FEATURES VREF to VOUT Settling Time: 150ns to 8-bit (typ) – Voltage Reference Input Bandwidth: 15 MHz Very Low Noise Gain Control Low Power: 80mW Low AC Voltage Reference Feedthrough Excellent Channel-to-Channel Isolation – e e h U 4 t m o .c MP7643 4-Channel, Programmable Gain Voltage Output, 15 MHz Input Bandwidth 8-Bit DACs with Multiplying Parallel Digital Data Port DNL = +0.5 LSB, INL = +1 LSB (typ) DACs Matched to +0.5% (typ) Low Harmonic Distortion: 0.25% typical with VREF = 1 V p-p @ 1 MHz Latch-Up Free ESD Protection: 2000 V Minimum APPLICATIONS Direct High-Frequency Automatic Gain Control Video AGC & CCD Level AGC Convergence Adjustment for High-Resolution Monitors (Workstations) Multiplier Replacement GENERAL DESCRIPTION The MP7643 is ideal for digital gain control of high frequency analog signals such as video, composite video and CCD. The device includes 4-channels of high speed, wide bandwidth, two quadrant multiplying, 8-bit accurate digital-to-analog converter. It includes an output drive buffer per channel capable of driving a +1mA (typ) load. DNL of better than +0.5 LSB is achieved with a channel-to-channel matching of typically 0.5%. Stability, matching, and precision of the DACs are achieved by us...