DU C PRO LACEME E T ente R EP OBS ENDED upport C om/tsc lS MM sil.c ECO Technica ww.inter Data Sheet November 1994, Rev 8-INT 1-88

The EL4390 is three wideband current-mode feedback amplifiers optimized for video performance, each with a DC restore amplifier. The DC restore function is activated by a common TTL/CMOS compatible control signal while each channel has a separate restore reference. Each amplifier can drive a load 150 at video signal levels. The EL4390 operates on supplies as low to �15V. Being a current-mode feedback design, the bandwidth stays relatively constant at approximately 80MHz over the to �10 gain range. The EL4390 has been optimized for use with 1300 feedback resistors.

80MHz -3dB bandwidth for gains 10 800V/�s slew rate 15MHz bandwidth flat to 0.1dB Excellent differential gain and phase TTL/CMOS compatible DC restore function Available in 16-pin PDIP, 16-pin SOL

RGB drivers requiring DC restoration RGB multiplexers requiring DC restoration RGB building blocks Video gain blocks requiring DC restoration Sync and color burst processing

PART NUMBER EL4390CN EL4390CM TEMP. RANGE to +85�C PACKAGE 16-Pin PDIP 16-Pin SOL PKG. NO. MDP0031 MDP0027

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright � Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners.

Supply Voltage between VS+ and GND. +12.6V Input Voltage (IN+, IN-, ENABLE, CLAMP). GND +0.3V VS Supply Voltage. or 36V VIN Input Voltage. or VS VIN Differential Input Voltage.�6V

CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: = TA

PARAMETER DESCRIPTION AMPLIFIER SECTION (NOT RESTORED) VOS IB+ IBROL RINCMRR PSRR VO ISC ISY Input Offset Voltage IIN+ Input Bias Current IIN- Input Bias Current Transimpedance (Note 1) IN- Resistance Common-Mode Rejection Ratio (Note 2) Power Supply Rejection Ratio (Note 3) Output Voltage Swing; = 1k Short-Circuit Current Supply Current (Quiescent)

RESTORING SECTION VOS, COMP IB+, R IOUT PSRR GOUT ISY, RES VIL, RES VIH, RES IIL, RES IIH, RES NOTES: 1. For current feedback amplifiers, AVOL = ROL/RIN2. VCM = �10V for �15V. 3. VOS is measured = �4.5V and = �16V, both supplies are changed simultaneously. 4. Measured from VCL to amplifier output, while restoring. Composite Input Offset Voltage (Note 4) Restore IN+ Input Bias Current Restoring Current Available Power Supply Rejection Ratio (Note 3) Conductance Supply Current, Restoring RES Logic Low Threshold RES Logic High Threshold RES Input Current, Logic Low RES Input Current, Logic High mA dB mA/V V �A

PARAMETER AMPLIFIER SECTION dG d Slew Rate (Note 1) Slew Rate w/ �5V Supplies (Note 2) Bandwidth, 1 �5V Supplies, -3dB Bandwidth, -0.1dB �5V Supplies, -0.1dB Differential Gain at �5V Supplies (Note 3) Differential Phase at �5V Supplies (Note V/�s MHz % DESCRIPTION Supplies at �15V, Load = 150 and = 25�C (Note 1) MIN TYP MAX UNITS

RESTORING SECTION TRE TRD NOTES: 1. Test fixture was designed to minimize capacitance at the IN- input. A "good" fixture should have less than 2pF of stray capacitance to ground at this very sensitive pin. See application notes for further details. SR is measured of 4Vpk-pk square wave, with 3. DC offset from +0.714V, AC amplitude is 286mVP-P, equivalent to 40 ire. Time to Enable Restore Time to Disable Restore 35 ns

TABLE 1. CHARGE STORAGE CAPACITOR VALUE VS. DROOP AND CHARGING RATES CAP VALUE (NF) DROOP IN 60�S (MV) CHARGE IN 2�S (MV) CHARGE IN 4�S (MV)

These numbers represent the worst case bias current, and the worst case charging current. Note that to get the full (2mA+) charging current, the clamp input must have >250mV of error voltage. Note that the magnitude of the bias current will decrease as temperature increases. The basic droop formula is: V (droop) = IB+ � (Line time - Charge time) / capacitor value and the basic charging formula is: V (charge) = IOUT � Charge time / capacitor value Where IOUT is: IOUT = (Clamp voltage - IN+ voltage) / 120