733 Differential Video Amplifiers GENERAL DESCRIPTION The RM733/RC733 integrated circuit is a monolithic video amplifier with differential inputs and differential outputs. It offers three selectable voltage gains of 10, 100, or 400 and adjustable gain of 10 to 400 using a single resistor, No external frequency compensation is necessary for any gain option. The circuit and process designs are optimized to give a stable gain (410%), wide bandwidth (DC to 120MHz), high input resis- tance (250kQ), and low phase shift that is jinear up to 1OMHz (2 per MHz). The RM733/RC733 is designed for use as a read head amplifier for magnetic tape, drum, or disc memories using phase of NRZ memory systems, very high speed random access memory systems, Communications systems, nuclear event instrumenta- tion, frequency counters, and other systems where the specific design features of the RM733/RC733 are required. The RM733 video amplifier will operate over the complete military temperature range from 55C to +125C while the commercial version, the RC733, operates from 0C to +70C. DESIGN FEATURES @ Wide Bandwidth DC to 120MHz a a ; si @ Low Linear Phase Shift 27/MHz to 10MHz encoding. It will also function as a preamplifier for high speed | film or plated wire memory systems; as a video or pulse ampli- Selectable Voltage Gains 10, 100, or 400 fier, pulse height detector, peak detector. @ Excellent Pulse Characteristics Applications for the RM733/RC733 include bulk computer @ High input Resistance 250k SCHEMATIC DIAGRAM iNPUT 1 INPUT 2 L AKA oureur ! Na o GIA OUTPUT 2 G2A GAIN GAIN SELECT SELECT CONNECTION INFORMATION DB and DC Dual Sn Line TF Metal Can CQ Fiat Pack Packages Package Package (Top View} {Top View) we cie ukync G2 san tecr on CURRENT Limit C2]? we come Ma INSELECT INPUT 1 GAIN SELECT CURRENT SENSE [7]3 wiv w ees Gkiy seLect -iweut C74 weve GAIN SELECT ohrpuT : +wneur Cs E3 vour QUTPUT1 GAIN sevedt OUTPUT 2 Veer C6 gf vz v E GuTpuT 2 vr 6 nc NOTE: Pin 5 connected to case. Order Part Nos.: . Order Part Nos.: Order Part Nos.: RM733DC, RC7330C, RM733T RM733C0 RC733DB RC733T 2-2Differential Video Amplifiers 733 ABSOLUTE MAXIMUM RATINGS Supply Voltage... 6... ee eee +8.0V Operating Temperature Range Differential Input Voltage... .......-.0-000. +5.0V RM733......- 200.00 eee eee -55C to +125C Common Mode Input Voltage... 2.2.0... eee +6.0V RC733 ow ee 0C to +70C Input Current... 6... eee eee 10mMA Storage Temperature Range.........- -65C to +150C Internal Power Dissipation Metal Can (Note 1)... 500mW Lead Temperature (Soldering, 60s)...........-. 300C Flat Pack... be ee eee 570mW ELECTRICAL CHARACTERISTICS (Note 2) RM733 RC733 PARAMETER (Note 3) CONDITIONS MIN] TVP [MAX] MIN] TYP] MAX] UNITS Differential Voltage Gain Gain 1 300 | 400 | 500 | 250 | 400 | 600 Gain 2 90 100 | 110 | 80 100 | 120 Gain 3 9.0 10 11 8.0 10 12 Bandwidth Gain 1 40 40 Gain 2 | Rg = 5082 90 90 MHz Gain 3 120 120 Risetime Gain 1 10.5 10.5 Gain 2 | Rg = 502, Vout = 1Vpp 4.5 10 4.5 12 ns Gain 3 2.5 2.5 Propagation Delay Gain 1 7.5 75 Gain 2 | Rg = 5022, VouT = 1VpP 6.0 10 6.0 10 ns Gain 3 3.6 3.6 Input Resistance Gain 1 4.0 4.0 Gain 2 20 30 10 30 kQ Gain 3 250 250 Input Capacitance Gain 2 2.0 2.0 pF Input Offset Current 0.4 3.0 0.4 5.0 vA Input Bias Current 9.0 20 9.0 30 BA Input Noise Voltage Rg = 5082, BW = 1kHz to 10MHz 12 12 uVrms Input Voltage Range +1.0 +1.0 Vv Common Mode Rejection Ratio Gain 2 Vom = 1V, RS 100kHz 60 86 60 86 dB Vem = 1V, f = 5MHz 60 60 Supply Voltage Rejection Ratio Gain 2 | AVs = +0.5V 50 70 50 70 dB Output Offset Voltage Gain 1 0.6 1.5 0.6 1.5 Gain 2 0.35] 1.0 0.35] 1.5 Vv Gain 3 Output Common Mode Voltage 2.4 2.9 3.4 2.4 2.9 3.4 Vv Output Voltage Swing 3.0 4.0 3.0 4.0 Vpp Output Sink Current 2.5 3.6 2.5 3.6 mA Output Resistance 20 20 Q Power Supply Current 18 24 18 24 mA NOTES: 1. For RM733 the rating applies for case temperature to +125C; derate RM733T linearly at 6.5 mW/C for ambient temperature above 75C. For RC733T, the rating applies for ambient temperatures to 70C. For RM733CQ, derate linearly at 7.2 mW/C for ambient temperature above 76C. 2. Vg = +6.0V: Tp = 25C unless otherwise noted. 3. Gain 1: G1A and G1B connected together; Gain 2: G2A and G2B connected together; Gain 3: Gain select pins open.733 Differential Video Amplifiers ELECTRICAL CHARACTERISTICS (The foliowing specifications apply for -55C < T, < 125C for the RM733 and OC