HFA1130/883 TM Output Clamping, 850MHz Current Feedback Amplifier July 1994 Features Description • This Circuit is Processed in Accordance to MIL-STD883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1. The HFA1130/883 is a high speed, wideband current feedback amplifier featuring programmable output clamps. Built with Intersil’ proprietary complementary bipolar UHF-1 process, it is the fastest monolithic amplifier available from any semiconductor manufacturer. • User Programmable Output Voltage Clamps • Low Distortion (HD3, 30MHz) . . . . . . . . . . -84dBc (Typ) • Wide -3dB Bandwidth . . . . . . . . . . . . . . . 850MHz (Typ) • Very High Slew Rate . . . . . . . . . . . . . . . 2300V/µs (Typ) • Fast Settling (0.1%) . . . . . . . . . . . . . . . . . . . . 11ns (Typ) • Excellent Gain Flatness (to 50MHz) . . . . . 0.05dB (Typ) • High Output Current . . . . . . . . . . . . . . . . . . 65mA (Typ) • Fast Overdrive Recovery . . . . . . . . . . . . . . . <1ns (Typ) Applications • Residue Amplifier This amplifier is the ideal choice for high frequency applications requiring output limiting, especially those needing ultra fast overdrive recovery times. The output clamp function allows the designer to set the maximum positive and negative output levels, thereby protecting later stages from damage or input saturation. The sub-nanosecond overdrive recovery time quickly returns the amplifier to linear operation following an overdrive condition. The HFA1130/883’s wide bandwidth, fast settling characteristic, and low output impedance, coupled with the output clamping ability, make this amplifier ideal for driving fast A/D converters. Component and composite video systems will also benefit from this amplifier’s performance, as indicated by the excellent gain flatness, and 0.03%/0.05 Degree Differential Gain/ Phase specifications (RL = 75Ω). • Video Switching and Routing • Pulse and Video Amplifiers • Wideband Amplifiers Ordering Information • RF/IF Signal Processing PART NUMBER • Flash A/D Driver • Medical Imaging Systems TEMPERATURE RANGE o o PACKAGE HFA1130MJ/883 -55 C to +125 C 8 Lead CerDIP HFA1130ML/883 -55oC 20 Lead Ceramic LCC to +125oC Pinouts HFA1130/883 (CLCC) TOP VIEW 3 6 OUT V- 4 5 VL - + CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved 204 NC 4 -IN 5 NC +IN 3 2 1 20 19 18 VH 17 V+ - 16 NC NC 6 +IN 7 15 OUT NC 8 14 NC + 9 10 11 12 13 NC V+ NC 7 NC 2 NC -IN VL VH NC 8 V- 1 NC NC NC HFA1130/883 (CERDIP) TOP VIEW Spec Number 511082-883 FN3625.1 Specifications HFA1130/883 Absolute Maximum Ratings Thermal Information Voltage Between V+ and V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Voltage at Either Input Terminal . . . . . . . . . . . . . . . . . . . . . . V+ to VVoltage at VH or VL Terminal . . . . . . . . . . . . . (V+) + 2V to (V-) - 2V Output Current (50% Duty Cycle) . . . . . . . . . . . . . . . . . . . . . . . . ±55mA Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC ESD Rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 2000V Storage Temperature Range . . . . . . . . . . . . . . -65oC ≤ TA ≤ +150oC Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . . . . +300oC θJC Thermal Resistance θJA CerDIP Package . . . . . . . . . . . . . . . . . . . 115oC/W 30oC/W Ceramic LCC Package . . . . . . . . . . . . . . 75oC/W 23oC/W Maximum Package Power Dissipation at +75oC CerDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.87W Ceramic LCC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.33W Package Power Dissipation Derating Factor above +75oC CerDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.7mW/oC Ceramic LCC Package . . . . . . . . . . . . . . . . . . . . . . . . 13.3mW/oC 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. Operating Conditions Operating Supply Voltage (±VS) . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V Operating Temperature Range. . . . . . . . . . . . .-55oC ≤ TA ≤ +125oC RL Š≥ 50Ω TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS Device Tested at: V SUPPLY = ±5V, AV = +1, RF = 510Ω, RSOURCE = 0Ω, R L = 100Ω, VOUT = 0V, Unless Otherwise Specified. PARAMETERS Input Offset Voltage SYMBOL VIO Common Mode Rejection Ratio CMRR Power Supply Rejection Ratio PSRRP PSRRN Non-Inverting Input (+IN) Current +IN Current Common Mode Sensitivity +IN Resistance Inverting Input (-IN) Current IBSP CMSIBP +RIN IBSN TEMPERATURE MIN MAX 1 +25oC -6 6 mV 2, 3 +125oC, -55oC -10 10 mV 1 +25oC 40 - dB 38 - dB VCM = 0V ∆VCM = ±2V V+ = 3V, V- = -7V V+ = 7V, V- = -3V ∆VSUP = ±1.25V V+ = 6.25V, V- = -5V V+ = 3.75V, V- = -5V ∆VSUP = ±1.25V V+ = 5V, V- = -6.25V V+ = 5V, V- = -3.75V VCM = 0V ∆VCM = ±2V V+ = 3V, V- = -7V V+ = 7V, V- = -3V Note 1 VCM = 0V CMSIBN -IN Current Power Supply Sensitivity PPSSIBN NPSSIBN VOP100 VON100 ∆VCM = ±2V V+ = 3V, V- = -7V V+ = 7V, V- = -3V ∆VSUP = ±1.25V V+ = 6.25V, V- = -5V V+ = 3.75V, V- = -5V ∆VSUP = ±1.25V V+ = 5V, V- = -6.25V V+ = 5V, V- = -3.75V AV = -1 RL =100Ω AV = -1 RL =100Ω o o UNITS 2, 3 +125 C, -55 C 1 +25oC 45 - dB 2, 3 +125oC, -55oC 42 - dB 1 +25oC 45 - dB 2, 3 +125oC, -55oC 42 - dB 1 +25oC -40 40 µA 2, 3 +125oC, -55oC -65 65 µA 1 +25oC - 40 µA/V 2, 3 +125oC, -55oC - 50 µA/V 1 +25oC 25 - kΩ 2, 3 +125oC, -55oC 20 - kΩ 1 +25oC -50 50 µA oC, -55oC -75 75 µA 1 +25oC - 7 µA/V 2, 3 +125oC, -55oC - 10 µA/V 1 +25oC - 15 µA/V 2, 3 +125oC, -55oC - 27 µA/V 1 +25oC - 15 µA/V - 27 µA/V 2, 3 -IN Current Common Mode Sensitivity Output Voltage Swing CONDITIONS LIMITS GROUP A SUBGROUPS +125 o o 2, 3 +125 C, -55 C VIN = 3.5V 1 +25oC 3 - V VIN = -3V 2, 3 +125oC, -55oC 2.5 - V VIN =+3.5V 1 +25oC - -3 V VIN = +3V 2, 3 +125oC, -55oC - -2.5 V Spec Number 205 511082-883 Specifications HFA1130/883 TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS (Continued) Device Tested at: V SUPPLY = ±5V, AV = +1, RF = 510Ω, RSOURCE = 0Ω, R L = 100Ω, VOUT = 0V, Unless Otherwise Specified. PARAMETERS SYMBOL Output Voltage Swing VOP50 AV = -1 RL = 50Ω AV = -1 RL = 50Ω VON50 Output Current UNITS +25oC, +125oC 2.5 - V VIN = -2V 3 -55oC 1.5 - V VIN = +3V 1, 2 +25oC, +125oC - -2.5 V VIN = +2V 3 -55oC - -1.5 V 1, 2 +25oC, +125oC 50 - mA mA o 3 -55 C 30 - 1, 2 +25oC, +125oC - -50 mA 3 -55oC - -30 mA 1 +25oC 14 26 mA oC, 2, 3 RL = 100Ω VHCLMP AV = -1, VIN = -2V VH = 1V VLCLMP Clamp Input Current MAX 1, 2 VIN = -3V RL = 100Ω ICC IEE Clamp Accuracy MIN Note 2 -IOUT Quiescent Power Supply Current TEMPERATURE Note 2 +IOUT AV = -1, VIN = +2V VL = -1V VHBIAS VH = 1V VLBIAS LIMITS GROUP A SUBGROUPS CONDITIONS VL = -1V +125 -55oC - 33 mA -26 -14 mA 1 +25oC 2, 3 +125oC, -55oC -33 - mA 1 +25oC -125 125 mV 2, 3 +125oC, -55oC -200 200 mV 1 +25oC -125 125 mV 2, 3 +125oC, -55oC -200 200 mV 1 +25oC - 200 µA µA o o 2, 3 +125 C, -55 C - 300 1 +25oC -200 - µA 2, 3 +125oC, -55oC -300 - µA MIN MAX UNITS NOTES: 1. Guaranteed from +IN Common Mode Rejection Test, by: +RIN = 1/CMSIBP . 2. Guaranteed from VOUT Test with RL = 50Ω, by: IOUT = VOUT/50Ω. TABLE 2. AC ELECTRICAL PERFORMANCE CHARACTERISTICS Table 2 Intentionally Left Blank. TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS Device Characterized at: VSUPPLY = ±5V, AV = +2, RF = 360Ω, RL = 100Ω, Unless Otherwise Specified. LIMITS PARAMETERS -3dB Bandwidth Gain Flatness SYMBOL CONDITIONS NOTES TEMPERATURE o BW(-1) AV = -1, RF = 430Ω VOUT = 200mV P-P 1 +25 C 300 - MHz BW(+1) AV = +1, R F = 510Ω VOUT = 200mV P-P 1 +25oC 550 - MHz BW(+2) AV = +2, VOUT = 200mVP-P 1 +25oC 350 - MHz GF30 AV = +2, RF = 510Ω, f ≤ 30MHz VOUT = 200mV P-P 1 +25oC - ±0.04 dB GF50 AV = +2, R F = 510Ω, f ≤ 50MHz VOUT = 200mV P-P 1 +25oC - ±0.10 dB GF100 AV = +2, RF = 510Ω, f ≤ 100MHz, VOUT = 200mVP-P 1 +25oC - ±0.30 dB Spec Number 206 511082-883 Specifications HFA1130/883 TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS (Continued) Device Characterized at: VSUPPLY = ±5V, AV = +2, RF = 360Ω, RL = 100Ω, Unless Otherwise Specified. LIMITS PARAMETERS SYMBOL Slew Rate NOTES TEMPERATURE MIN MAX UNITS +SR(+1) AV = +1, R F = 510Ω VOUT = 5VP-P 1, 2 +25oC 1200 - V/µs -SR(+1) AV = +1, R F = 510Ω VOUT = 5VP-P 1, 2 +25oC 1100 - V/µs +SR(+2) AV = +2, VOUT = 5VP-P 1, 2 +25oC 1650 - V/µs -SR(+2) Rise and Fall Time TR Overshoot Settling Time 2nd Harmonic Distortion 3rd Harmonic Distortion CONDITIONS o AV = +2, VOUT = 5VP-P 1, 2 +25 C 1500 - V/µs AV = +2, VOUT = 0.5VP-P 1, 2 +25oC - 1 ns TF AV = +2, VOUT = 0.5VP-P 1, 2 +25oC - 1 ns +OS AV = +2, VOUT = 0.5VP-P 1, 3 +25oC - 25 % -OS AV = +2, VOUT = 0.5VP-P 1, 3 +25oC - 20 % TS(0.1) AV = +2, RF = 510Ω VOUT = 2V to 0V, to 0.1% 1 +25oC - 20 ns TS(0.05) AV = +2, R F = 510Ω VOUT = 2V to 0V, to 0.05% 1 +25oC - 33 ns HD2(30) AV = +2, f = 30MHz VOUT = 2VP-P 1 +25oC - -48 dBc HD2(50) AV = +2, f = 50MHz VOUT = 2VP-P 1 +25oC - -45 dBc HD2(100) AV = +2, f = 100MHz VOUT = 2VP-P 1 +25oC - -35 dBc HD3(30) AV = +2, f = 30MHz VOUT = 2VP-P 1 +25oC - -65 dBc HD3(50) AV = +2, f = 50MHz VOUT = 2VP-P 1 +25oC - -60 dBc HD3(100) AV = +2, f = 100MHz VOUT = 2VP-P 1 +25oC - -40 dBc NOTES: 1. Parameters listed in Table 3 are controlled via design or process parameters and are not directly tested at final production. These parameters are lab characterized upon initial design release, or upon design changes. These parameters are guaranteed by characterization based upon data from multiple production runs which reflect lot-to-lot and within lot variation. 2. Measured between 10% and 90% points. 3. For 200ps input transition times. Overshoot decreases as input transition times increase, especially for A V = +1. Please refer to Performance Curves. TABLE 4. ELECTRICAL TEST REQUIREMENTS MIL-STD-883 TEST REQUIREMENTS SUBGROUPS (SEE TABLE 1) Interim Electrical Parameters (Pre Burn-In) 1 Final Electrical Test Parameters 1 (Note 1), 2, 3 Group A Test Requirements 1, 2, 3 Groups C and D Endpoints 1 NOTE: 1. PDA applies to Subgroup 1 only. Spec Number 207 511082-883 HFA1130/883 Die Characteristics DIE DIMENSIONS: 63 x 44 x 19 mils ± 1 mils 1600 x 1130 x 483µm ± 25.4µm METALLIZATION: Type: Metal 1: AICu(2%)/TiW Thickness: Metal 1: 8kÅ ± 0.4kÅ Type: Metal 2: AICu(2%) Thickness: Metal 2: 16kÅ ± 0.8kÅ GLASSIVATION: Type: Nitride Thickness: 4kÅ ± 0.5kÅ WORST CASE CURRENT DENSITY: 2.0 x 105 A/cm2 at 47.5mA TRANSISTOR COUNT: 52 SUBSTRATE POTENTIAL (Powered Up): Floating (Recommend Connection to V-) Metallization Mask Layout HFA1130/883 +IN -IN V- BAL VL VH BAL V+ OUT Spec Number 208 511082-883 HFA1130/883 Test Circuit (Applies to Table 1) NC K3 VL 0.1 50 0.1 V+ + 10 ICC 0.1 510 VIN K1 NC 0.1 0.1 K2 = POSITION 1: 0.1 VX VIO = 100 VX x100 + - 470pF VX 50K 5 - 510 2 K2 +IBIAS = 7 2 1 510 4 8 100 100 K5 0.1 100K (0.01%) 10 + NC 0.1 K4 + VZ VOUT 50 200pF VZ 100K 1K 6 DUT 3 + K2 = POSITION 2: -IBIAS = 510 0.1 100 IEE 0.1 0.1 HA-5177 V- NOTE: VH All Resistors = ±1% (Ω) All Capacitors = ±10% (µF) Unless Otherwise Noted Chip Components Recommended Terminal Numbers Refer to CDIP Package Test Waveforms SIMPLIFIED TEST CIRCUIT FOR LARGE AND SMALL SIGNAL PULSE RESPONSE (Applies to Table 3) AV = +1 TEST CIRCUIT AV = +2 TEST CIRCUIT V+ VIN VOUT + - RS 50Ω V+ 50Ω RF VIN 2 RS 50Ω 50Ω VOUT + - RF 50Ω 360Ω 510Ω V- V- LARGE SIGNAL WAVEFORM SMALL SIGNAL WAVEFORM VOUT VOUT 90% 90% +SR -2.5V RG 360Ω NOTE: VS = ±5V, AV = +2 RS = 50Ω RL=100Ω For Small and Large Signals NOTE: VS = ±5V, AV = +1 RS = 50Ω RL = 100Ω For Small and Large Signals +2.5V 2 50Ω +2.5V +250mV -SR 10% 10% 90% 90% TF , -OS TR , +OS -2.5V -250mV 10% 10% Spec Number 209 +250mV -250mV 511082-883 HFA1130/883 Burn-In Circuits HFA1130MJ/883 CERAMIC DIP R3 1 R2 8 2 R1 + 3 D4 6 4 VD2 D3 V+ 7 - C1 D1 5 C2 NOTES: R1 = R2 = 1kΩ, ±5% (Per Socket) R3 = 10kΩ, ±5% (Per Socket) C1 = C2 = 0.01µF (Per Socket) or 0.1µF (Per Row) Minimum D1 = D2 = 1N4002 or Equivalent (Per Board) D3 = D4 = 1N4002 or Equivalent (Per Socket) V+ = +5.5V ± 0.5V V- = -5.5V ± 0.5V HFA1130ML/883 CERAMIC LCC R3 3 2 1 20 19 18 4 R2 5 6 R1 16 + 7 D3 17 - V+ C1 D1 15 14 8 9 10 11 12 13 D4 VD2 C2 NOTES: R1 = R2 = 1kΩ, ±5% (Per Socket) R3 = 10kΩ, ±5% (Per Socket) C1 = C2 = 0.01µF (Per Socket) or 0.1µF (Per Row) Minimum D1 = D2 = 1N4002 or Equivalent (Per Board) D3 = D4 = 1N4002 or Equivalent (Per Socket) V+ = +5.5V ± 0.5V V- = -5.5V ± 0.5V Spec Number 210 511082-883 HFA1130/883 Packaging BASE METAL E M -BC A-B S (c) -C- SEATING PLANE Q MIN MAX MIN MAX A - 0.200 - 5.08 - M (b) b 0.014 0.026 0.36 0.66 2 b1 0.014 0.023 0.36 0.58 3 b2 0.045 0.065 1.14 1.65 - b3 0.023 0.045 0.58 1.14 4 c 0.008 0.018 0.20 0.46 2 c1 0.008 0.015 0.20 0.38 3 D - 0.405 - 10.29 5 E 0.220 0.310 5.59 7.87 5 A L S1 α eA A A b2 e b C A-B S D S eA/2 MILLIMETERS SYMBOL SECTION A-A D S INCHES b1 D BASE PLANE ccc M MIL-STD-1835 GDIP1-T8 (D-4, CONFIGURATION A) 8 LEAD DUAL-IN-LINE FRIT-SEAL CERAMIC PACKAGE -D- -A- bbb S F8.3A LEAD FINISH c1 c aaa M C A - B S D S NOTES: 1. Index area: A notch or a pin one identification mark shall be located adjacent to pin one and shall be located within the shaded area shown. The manufacturer’s identification shall not be used as a pin one identification mark. 2. The maximum limits of lead dimensions b and c or M shall be measured at the centroid of the finished lead surfaces, when solder dip or tin plate lead finish is applied. e 0.100 BSC 2.54 BSC - eA 0.300 BSC 7.62 BSC - eA/2 0.150 BSC 3.81 BSC - L 0.125 0.200 3.18 5.08 - Q 0.015 0.060 0.38 1.52 6 S1 0.005 - 0.13 - 7 S2 0.005 - 0.13 - - α 90o 105o 90o 105o - aaa - 0.015 - 0.38 - bbb - 0.030 - 0.76 - ccc - 0.010 - 0.25 - M - 0.0015 - 0.038 2 N 3. Dimensions b1 and c1 apply to lead base metal only. Dimension M applies to lead plating and finish thickness. NOTES 8 8 8 4. Corner leads (1, N, N/2, and N/2+1) may be configured with a partial lead paddle. For this configuration dimension b3 replaces dimension b1. 5. This dimension allows for off-center lid, meniscus, and glass overrun. 6. Dimension Q shall be measured from the seating plane to the base plane. 7. Measure dimension S1 at all four corners. 8. N is the maximum number of terminal positions. 9. Dimensioning and tolerancing per ANSI Y14.5M - 1982. 10. Controlling Dimension: Inch 11. Lead Finish: Type A. 12. Materials: Compliant to MIL-I-38535. Spec Number 211 511082-883 HFA1130/883 Packaging (Continued) D J20.A MIL-STD-1835 CQCC1-N20 (C-2) 20 PAD METAL SEAL LEADLESS CERAMIC CHIP CARRIER D3 j x 45o INCHES E3 B h x 45 E MIN MAX MIN MAX NOTES A 0.060 0.100 1.52 2.54 6, 7 A1 0.050 0.088 1.27 2.23 7 B - - - - 4 B1 0.022 0.028 0.56 0.71 2, 4 B2 o A A1 e 0.15 0.56 - D 0.342 0.358 8.69 9.09 - D1 0.200 BSC 5.08 BSC - D2 0.100 BSC 2.54 BSC - D3 - 0.358 - 9.09 2 E 0.342 0.358 8.69 9.09 - E1 0.200 BSC 5.08 BSC E2 0.100 BSC 2.54 BSC PLANE 1 e1 B3 E1 - 0.022 PLANE 2 B1 1.83 REF 0.006 E3 L3 0.072 REF B3 e L MILLIMETERS SYMBOL - 0.358 - 0.050 BSC 0.015 - 9.09 1.27 BSC - 0.38 2 - - 2 h 0.040 REF 1.02 REF 5 j 0.020 REF 0.51 REF 5 L 0.045 0.055 1.14 1.40 - L1 0.045 0.055 1.14 1.40 - L2 0.075 0.095 1.90 2.41 - L3 0.003 0.015 0.08 0.38 - ND 5 5 NE 5 5 3 3 N 20 20 3 NOTES: E2 1. Metallized castellations shall be connected to plane 1 terminals and extend toward plane 2 across at least two layers of ceramic or completely across all of the ceramic layers to make electrical connection with the optional plane 2 terminals. L2 B2 L1 2. Unless otherwise specified, a minimum clearance of 0.015 inch (0.381mm) shall be maintained between all metallized features (e.g., lid, castellations, terminals, thermal pads, etc.) D2 e1 D1 3. Symbol “N” is the maximum number of terminals. Symbols “ND” and “NE” are the number of terminals along the sides of length “D” and “E”, respectively. 4. The required plane 1 terminals and optional plane 2 terminals shall be ellectrically connected. 5. The corner shape (square, notch, radius, etc.) may vary at the manufacturer’s option, from that shown on the drawing. 6. Chip carriers shall be constructed of a minimum of two ceramic layers. 7. Maximum limits allows for 0.007 inch solder thickness on pads. 8. Lead Finish: Type A. 9. Materials: Compliant to MIL-I-38535. Spec Number 212 511082-883 HFA1130 TM DESIGN INFORMATION Output Clamping, Ultra High Speed Current Feedback Amplifier February 2002 The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. Typical Performance Curves VSUPPLY = ±5V, RF = 510Ω, TA = +25oC, RL = 100Ω, Unless Otherwise Specified. SMALL SIGNAL PULSE RESPONSE LARGE SIGNAL PULSE RESPONSE AV = +2 120 90 0.9 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (mV) A V = +2 1.2 60 30 0 -30 -60 0.6 0.3 0 -0.3 -0.6 -90 -0.9 -120 -1.2 5ns/DIV 5ns/DIV UNCLAMPED PERFORMANCE CLAMPED PERFORMANCE IN 0V TO 0.5V IN 0V TO 1V OUT 0V TO 1V OUT 0V TO 1V AV = +2, VH = 2V, VL = -2V AV = +2, VH = 1V, VL = -1V, 2X OVERDRIVE 10ns/DIV 10ns/DIV Spec Number 213 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. Typical Performance Curves VSUPPLY = ±5V, RF = 510Ω, TA = +25oC, RL = 100Ω, Unless Otherwise Specified. (Continued) NON-INVERTING FREQUENCY RESPONSE AV = +2 AV = +6 AV = +11 -12 PHASE 0 0.3 1 AV = +1 -90 AV = +2 -180 AV = +6 AV = +11 -270 -12 0.3 PHASE RL = 50Ω RL = 100Ω 0 -90 RL = 1kΩ -180 RL = 100Ω RL = 1kΩ 0.3 1 GAIN (dB) NORMALIZED RL = 50Ω -6 10 100 FREQUENCY (MHz) AV = +1 -360 1K GAIN (dB) NORMALIZED 1.63VP-P 1 -90 -180 1K 10 100 FREQUENCY (MHz) 10 100 FREQUENCY (MHz) RL = 1kΩ GAIN 0 -3 RL = 100Ω -6 PHASE RL = 50Ω 0 RL = 50Ω RL = 100Ω +20 0.160VP-P -30 0.3 0 -90 RL = 1kΩ RL = 100Ω -180 -270 1 -360 1K 10 100 FREQUENCY (MHz) FREQUENCY RESPONSE FOR VARIOUS OUTPUT VOLTAGES 0.920VP-P -20 +3 0.3 0.500VP-P -10 AV = -5 RL = 1kΩ +10 0 1 -270 FREQUENCY RESPONSE FOR VARIOUS OUTPUT VOLTAGES +20 90 FREQUENCY RESPONSE FOR VARIOUS LOAD RESISTORS PHASE (DEGREES) GAIN (dB) RL = 100Ω -3 AV = -1 AV = +2, VOUT = 200mVP-P GAIN 0 180 AV = -20 RL = 1kΩ +3 AV = -20 PHASE AV = +1, VOUT = 200mVP-P +6 AV = -10 AV = -10 FREQUENCY RESPONSE FOR VARIOUS LOAD RESISTORS GAIN (dB) VOUT = 200mVP-P -9 -360 1K 10 100 FREQUENCY (MHz) AV = -5 -6 PHASE (DEGREES) VOUT = 200mVP-P AV = -1 -3 PHASE (DEGREES) -6 GAIN (dB) NORMALIZED AV = +1 PHASE (DEGREES) -3 -9 GAIN 0 GAIN 0 GAIN (dB) NORMALIZED INVERTING FREQUENCY RESPONSE +10 0 0.32VP-P 1.00VP-P -10 1.84VP-P -20 3.26VP-P -30 0.3 1K AV = +2 1 10 100 FREQUENCY (MHz) Spec Number 214 1K 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. Typical Performance Curves VSUPPLY = ±5V, RF = 510Ω, TA = +25oC, RL = 100Ω, Unless Otherwise Specified. (Continued) FREQUENCY RESPONSE FOR VARIOUS OUTPUT VOLTAGES AV = +1 AV = +6 +20 +10 950 BANDWIDTH (MHz) GAIN (dB) NORMALIZED -3dB BANDWIDTH vs TEMPERATURE 0 0.96VP-P TO 3.89VP-P -10 -20 -30 900 850 800 750 700 0.3 1 10 100 FREQUENCY (MHz) -50 1K -25 0 +25 +50 +75 +100 +125 TEMPERATURE (oC) GAIN FLATNESS DEVIATION FROM LINEAR PHASE AV = +2 +2.0 AV = +2 DEVIATION (DEGREES) +1.5 GAIN (dB) 0 -0.05 -0.10 -0.15 -0.20 +1.0 +0.5 0 -0.5 -1.0 -1.5 -2.0 1 10 FREQUENCY (MHz) 0 100 SETTLING RESPONSE 15 30 45 60 75 90 105 120 135 150 FREQUENCY (MHz) 3rd ORDER INTERMODULATION INTERCEPT 40 2-TONE 35 0.6 INTERCEPT POINT (dBm) SETTLING ERROR (%) AV = +2, VOUT = 2V 0.4 0.2 0 -0.2 -0.4 -0.6 30 25 20 15 10 5 0 -4 1 6 11 16 21 26 TIME (ns) 31 36 41 46 0 100 200 300 FREQUENCY (MHz) Spec Number 215 400 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. Typical Performance Curves VSUPPLY = ±5V, RF = 510Ω, TA = +25oC, RL = 100Ω, Unless Otherwise Specified. (Continued) 3rd HARMONIC DISTORTION vs POUT -30 -35 -40 100MHz -40 DISTORTION (dBc) DISTORTION (dBc) 2nd HARMONIC DISTORTION vs POUT -30 -45 50MHz -50 -55 -60 30MHz -65 -70 -5 -3 -1 1 3 -50 100MHz -60 -70 50MHz -80 -90 30MHz -100 5 7 9 11 13 -110 15 -5 -3 -1 OUTPUT POWER (dBm) 7 9 11 RF = 360Ω VOUT = 2VP-P 30 VOUT = 1VP-P VOUT = 0.5VP-P VOUT = 2VP-P 25 RF = 360Ω 20 13 15 10 0 100 200 300 400 500 600 700 800 900 1000 INPUT RISE TIME (ps) VOUT = 0.5VP-P AV = +2 RF = 360Ω VOUT = 1VP-P 15 5 RF = 510Ω VOUT = 2VP-P RF =510Ω VOUT = 1VP-P VOUT = 0.5VP-P RF = 510Ω 100 200 300 400 500 600 700 800 900 1000 INPUT RISE TIME (ps) SUPPLY CURRENT vs TEMPERATURE 25 AV = +2, tR = 200ps, VOUT = 2VP-P 24 SUPPLY CURRENT (mA) OVERSHOOT (%) 5 35 AV = +1 OVERSHOOT vs FEEDBACK RESISTOR 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 3 OVERSHOOT vs INPUT RISE TIME OVERSHOOT (%) OVERSHOOT (%) OVERSHOOT vs INPUT RISE TIME 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 1 OUTPUT POWER (dBm) 23 22 21 20 19 360 400 440 480 520 560 600 FEEDBACK RESISTOR (Ω) 640 18 680 -60 -40 -20 0 +20 +40 +60 +80 +100 +120 TEMPERATURE (o C) Spec Number 216 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. Typical Performance Curves VSUPPLY = ±5V, RF = 510Ω, TA = +25oC, RL = 100Ω, Unless Otherwise Specified. (Continued) 6 7 8 9 TOTAL SUPPLY VOLTAGE (V+ - V-, V) 10 +IBIAS VIO -IBIAS -60 -40 -20 OUTPUT VOLTAGE vs TEMPERATURE 300 275 3.4 NOISE VOLTAGE (nV/√Hz) +VOUT 3.3 | - VOUT | 3.1 3.0 2.9 2.8 2.7 25 250 225 20 200 175 15 150 125 100 10 75 5 ENI INIINI+ 2.6 2.5 -60 -40 -20 0 100 0 +20 +40 +60 +80 +100 +120 1K TEMPERATURE (oC) 10K 100K 50 25 0 FREQUENCY (Hz) NON-LINEARITY NEAR CLAMP VOLTAGE 20 15 VOUT - (AV * VIN) (mV) OUTPUT VOLTAGE (V) 30 AV = -1, RL = 50Ω 3.5 3.2 0 +20 +40 +60 +80 +100+120 TEMPERATURE (oC) INPUT NOISE vs FREQUENCY 3.7 3.6 45 42 39 36 33 30 27 24 21 18 15 12 9 6 3 0 NOISE CURRENT (pA/√Hz) 5 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 BIAS CURRENTS (µA) VIO AND BIAS CURRENTS vs TEMPERATURE INPUT OFFSET VOLTAGE (mV) SUPPLY CURRENT (mA) SUPPLY CURRENT vs SUPPLY VOLTAGE 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 VL = -3V VL = -2V VL = -1V AV = -1, R L = 100Ω 10 5 0 VH = 1V -5 VH = 2V VH = 3V -10 -15 -20 -3 -2 -1 0 1 2 3 AV * VIN (V) Spec Number 217 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. Application Information recommended that the ground plane be removed under traces connected to -IN, and connections to -IN should be kept as short as possible. Optimum Feedback Resistor The enclosed plots of inverting and non-inverting frequency response illustrate the performance of the HFA1130 in various gains. Although the bandwidth dependency on closed loop gain isn’t as severe as that of a voltage feedback amplifier, there can be an appreciable decrease in bandwidth at higher gains. This decrease may be minimized by taking advantage of the current feedback amplifier’s unique relationship between bandwidth and RF . All current feedback amplifiers require a feedback resistor, even for unity gain applications, and RF , in conjunction with the internal compensation capacitor, sets the dominant pole of the frequency response. Thus, the amplifier’s bandwidth is inversely proportional to RF . The HFA1130 design is optimized for a 510Ω RF at a gain of +1. Decreasing RF in a unity gain application decreases stability, resulting in excessive peaking and overshoot. At higher gains the amplifier is more stable, so RF can be decreased in a tradeoff of stability for bandwidth. The table below lists recommended R F values for various gains, and the expected bandwidth. RF (Ω) BANDWIDTH (MHz) -1 430 580 +1 510 850 +2 360 670 +5 150 520 +10 180 240 +19 270 125 Driving Capacitive Loads Capacitive loads, such as an A/D input, or an improperly terminated transmission line will degrade the amplifier’s phase margin resulting in frequency response peaking and possible oscillations. In most cases, the oscillation can be avoided by placing a resistor (RS) in series with the output prior to the capacitance. Figure 1 details starting points for the selection of this resistor. The points on the curve indicate the RS and C L combinations for the optimum bandwidth, stability, and settling time, but experimental fine tuning is recommended. Picking a point above or to the right of the curve yields an overdamped response, while points below or left of the curve indicate areas of underdamped performance. RS and CL form a low pass network at the output, thus limiting system bandwidth well below the amplifier bandwidth of 850MHz. By decreasing RS as CL increases (as illustrated in the curves), the maximum bandwidth is obtained without sacrificing stability. Even so, bandwidth does decrease as you move to the right along the curve. For example, at AV = +1, RS = 50Ω, CL = 30pF, the overall bandwidth is limited to 300MHz, and bandwidth drops to 100MHz at AV = +1, RS = 5Ω, CL = 340pF. 50 45 40 AV = +1 35 RS (Ω) GAIN (ACL ) An example of a good high frequency layout is the Evaluation Board shown in Figure 2. 30 PC Board Layout 25 20 The frequency response of this amplifier depends greatly on the amount of care taken in designing the PC board. The use of low inductance components such as chip resistors and chip capacitors is strongly recommended, while a solid ground plane is a must! 15 10 5 A = +2 V 0 0 Attention should be given to decoupling the power supplies. A large value (10µF) tantalum in parallel with a small value (0.1µF) chip capacitor works well in most cases. Terminated microstrip signal lines are recommended at the input and output of the device. Capacitance directly on the output must be minimized, or isolated as discussed in the next section. Care must also be taken to minimize the capacitance to ground seen by the amplifier’s inverting input (-IN). The larger this capacitance, the worse the gain peaking, resulting in pulse overshoot and possible instability. To this end, it is 40 80 120 160 200 240 280 320 360 400 LOAD CAPACITANCE (pF) FIGURE 1. RECOMMENDED SERIES OUTPUT RESISTOR vs LOAD CAPACITANCE Evaluation Board The performance of the HFA1130 may be evaluated using the HFA11XX Evaluation Board. The layout and schematic of the board are shown in Figure 2. To order evaluation boards, please contact your local sales office. Spec Number 218 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. V+ TOP LAYOUT QP3 QP4 VH QN2 1 QP1 +IN +IN OUT V+ VL VGND R1 Z ICLAMP VV+ +1 VH QN1 QN5 QP2 BOTTOM LAYOUT 50K (30K FOR VL) QN6 QP6 QN3 QN4 QP5 V- -IN RF (EXTERNAL) VOUT FIGURE 3. HFA1130 SIMPLIFIED VH CLAMP CIRCUITRY Clamp Circuitry 500 500 VH R1 50Ω IN 10µF 0.1µF Figure 3 shows a simplified schematic of the HFA1130 input stage, and the high clamp (VH) circuitry. As with all current feedback amplifiers, there is a unity gain buffer (QX1 - QX2) between the positive and negative inputs. This buffer forces -IN to track +IN, and sets up a slewing current of: 1 8 2 7 3 6 4 5 -5V GND (V-IN - V OUT)/ RF + V-IN / RG 10µF 0.1µF where RG is the gain setting resistor from -IN to GND. This current is mirrored onto the high impedance node (Z) by QX3 - QX4, where it is converted to a voltage and fed to the output via another unity gain buffer. If no clamping is utilized, the high impedance node may swing within the limits defined by QP4 and QN4. Note that when the output reaches it’s quiescent value, the current flowing through -IN is reduced to only that small current (-IBIAS) required to keep the output at the final voltage. +5V 50Ω OUT GND VL FIGURE 2. EVALUATION BOARD SCHEMATIC AND LAYOUT Clamp Operation General The HFA1130 features user programmable output clamps to limit output voltage excursions. Clamping action is obtained by applying voltages to the VH and VL terminals (DIP pins 8 and 5) of the amplifier. VH sets the upper output limit, while VL sets the lower clamp level. If the amplifier tries to drive the output above VH, or below V L, the clamp circuitry limits the output voltage at VH or V L (± the clamp accuracy), respectively. The low input bias currents of the clamp pins allow them to be driven by simple resistive divider circuits, or active elements such as amplifiers or DACs. Tracing the path from V H to Z illustrates the effect of the clamp voltage on the high impedance node. VH decreases by 2V BE (QN6 and QP6) to set up the base voltage on QP5. QP5 begins to conduct whenever the high impedance node reaches a voltage equal to QP5’s base voltage + 2VBE (QP5 and QN5). Thus, QP5 clamps node Z whenever Z reaches VH . R1 provides a pull-up network to ensure functionality with the clamp inputs floating. A similar description applies to the symmetrical low clamp circuitry controlled by V L. Spec Number 219 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. When the output is clamped, the negative input continues to source a slewing current (ICLAMP) in an attempt to force the output to the quiescent voltage defined by the input. QP5 must sink this current while clamping, because the -IN current is always mirrored onto the high impedance node. The clamping current is calculated as: ICLAMP = (V-IN - VOUT CLAMPED) / RF + V-IN / RG. As an example, a unity gain circuit with VIN = 2V, VH = 1V, and RF = 510Ω would have ICLAMP = (2V - 1V) / 510Ω + 2V / ∞ = 1.96mA. Note that Icc will increase by ICLAMP when the output is clamp limited. Clamp Accuracy The clamped output voltage will not be exactly equal to the voltage applied to VH or VL Offset errors, mostly due to VBE mismatches, necessitate a clamp accuracy parameter which is found in the device specifications. Clamp accuracy is a function of the clamping conditions. Referring again to Figure 3, it can be seen that one component of clamp accuracy is the VBE mismatch between the QX6 transistors, and the QX5 transistors. If the transistors always ran at the same current level there would be no VBE mismatch, and no contribution to the inaccuracy. The QX6 transistors are biased at a constant current, but as described earlier, the current through QX5 is equivalent to ICLAMP . VBE increases as ICLAMP increases, causing the clamped output voltage to increase as well. ICLAMP is a function of the overdrive level (AVCL x VIN - VOUT CLAMPED) and RF , so clamp accuracy degrades as the overdrive increases, and as RF decreases. As an example, the specified accuracy of ±60mV for a 2X overdrive with RF = 510Ω degrades to ±220mV for RF = 240Ω at the same overdrive, or to ±±250mV for a 3X overdrive with RF = 510Ω. Clamp Range Unlike some competitor devices, both VH and VL have usable ranges that cross 0V. While VH must be more positive than VL, both may be positive or negative, within the range restrictions indicated in the specifications. For example, the HFA1130 could be limited to ECL output levels by setting VH = -0.8V and VL = -1.8V. VH and VL may be connected to the same voltage (GND for instance) but the result won’t be in a DC output voltage from an AC input signal. A 150mV - 200mV AC signal will still be present at the output. Recovery from Overdrive The output voltage remains at the clamp level as long as the overdrive condition remains. When the input voltage drops below the overdrive level (VCLAMP / AVCL) the amplifier will return to linear operation. A time delay, known as the Overdrive Recovery Time, is required for this resumption of linear operation. The plots of “Unclamped Performance” and “Clamped Performance” highlight the HFA1130’s subnanosecond recovery time. The difference between the unclamped and clamped propagation delays is the overdrive recovery time. The appropriate propagation delays are 4.0ns for the unclamped pulse, and 4.8ns for the clamped (2X overdrive) pulse yielding an overdrive recovery time of 800ps. The measurement uses the 90% point of the output transition to ensure that linear operation has resumed. Note: The propagation delay illustrated is dominated by the fixturing. The delta shown is accurate, but the true HFA1130 propagation delay is 500ps. Consideration must also be given to the fact that the clamp voltages have an effect on amplifier linearity. The “Nonlinearity Near Clamp Voltage” curve in the data sheet illustrates the impact of several clamp levels on linearity. Spec Number 220 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. TYPICAL PERFORMANCE CHARACTERISTICS Device Characterized at: VSUPPLY = ±5V, RF = 360Ω, AV = +2V/V, RL = 100Ω, Unless Otherwise Specified PARAMETERS CONDITIONS TEMPERATURE TYPICAL UNITS +25oC 2 mV Full 10 µV/oC ∆VCM = ±2V +25oC 46 dB VIO PSRR ∆VS = ±1.25V +25oC 50 dB +Input Current * VCM = 0V +25oC 25 µA Full 40 nA/oC Input Offset Voltage * VCM = 0V Average Offset Voltage Drift Versus Temperature VIO CMRR Average +Input Current Drift Versus Temperature -Input Current * VCM = 0V Average -Input Current Drift Versus Temperature +Input Resistance ∆VCM = ±2V -Input Resistance +25oC 12 µA Full 40 nA/oC +25oC 50 kΩ +25oC 16 Ω o +25 C 2.2 pF Input Noise Voltage * f = 100kHz +25oC 4 nV/√Hz +Input Noise Current * f = 100kHz +25oC 18 pA/√Hz +25 C 21 pA/√Hz Full ±3.0 V 500 kΩ Input Capacitance -Input Noise Current * o f = 100kHz Input Common Mode Range Open Loop Transimpedance AV = -1 +25oC Output Voltage AV = -1, RL = 100Ω +25oC ±3.3 V AV = -1, RL = 100Ω Full ±3.0 V ±65 mA ±50 mA 0.1 Ω Full 24 mA AV = -1, RF = 430Ω, VOUT = 200mV P-P +25oC 580 MHz AV = +1, RF = 510Ω, VOUT = 200mVP-P +25oC 850 MHz Output Current * +25oC AV = -1, RL = 50Ω -55oC to 0oC AV = -1, RL = 50Ω DC Closed Loop Output Resistance Quiescent Supply Current * -3dB Bandwidth * Slew Rate Full Power Bandwidth Gain Flatness * to +125oC +25 RL = Open oC o AV = +2, RF = 360Ω, VOUT = 200mVP-P +25 C 670 MHz AV = +1, RF = 510Ω, VOUT = 5VP-P +25oC 1500 V/µs AV = +2, VOUT = 5VP-P +25oC 2300 V/µs VOUT = 5VP-P +25oC 220 MHz o To 30MHz, RF = 510Ω +25 C ±0.014 dB To 50MHz, RF = 510Ω +25oC ±0.05 dB To 100MHz, RF = 510Ω +25oC ±0.14 dB o Linear Phase Deviation * To 100MHz, RF = 510Ω +25 C ±0.6 Degrees 2nd Harmonic Distortion * 30MHz, VOUT = 2VP-P +25oC -55 dBc 3rd Harmonic Distortion * o 50MHz, VOUT = 2V P-P +25 C -49 dBc 100MHz, VOUT = 2VP-P +25oC -44 dBc 30MHz, VOUT = 2VP-P +25oC -84 dBc 50MHz, VOUT = 2VP-P +25oC -70 dBc 100MHz, VOUT = 2VP-P +25oC -57 dBc Spec Number 221 511082-883 HFA1130 DESIGN INFORMATION (Continued) The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as application and design information only. No guarantee is implied. TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Device Characterized at: VSUPPLY = ±5V, RF = 360Ω, AV = +2V/V, RL = 100Ω, Unless Otherwise Specified PARAMETERS TEMPERATURE TYPICAL UNITS 100MHz, RF = 510Ω CONDITIONS +25oC 30 dBm 1dB Compression 100MHz, RF = 510Ω +25oC 20 dBm Reverse Isolation (S12) 40MHz, RF = 510Ω +25oC -70 dB 3rd Order Intercept * Rise & Fall Time Overshoot * Settling Time * Differential Gain o 100MHz, RF = 510Ω +25 C -60 dB 600MHz, RF = 510Ω +25oC -32 dB VOUT = 0.5VP-P +25oC 500 ps VOUT = 2VP-P +25oC 800 ps VOUT = 0.5VP-P, Input tR/tF = 550ps +25oC 11 % o To 0.1%, VOUT = 2V to 0V, RF = 510Ω +25 C 11 ns To 0.05%, VOUT = 2V to 0V, R F = 510Ω +25oC 19 ns To 0.02%, VOUT = 2V to 0V, R F = 510Ω +25oC 34 ns AV = +2, RL = 75Ω, NTSC +25oC 0.03 % o Differential Phase AV = +2, RL = 75Ω, NTSC +25 C 0.05 Degrees Overdrive Recovery Time (2X Overdrive) RF = 510Ω, VIN = ±1V, VH = +1V, VL = -1V +25oC 750 ps Clamp Accuracy AV = -1, RF = 510Ω, VIN = ±2V, VH = +1V, VL = -1V +25oC ±60 mV Clamped Overshoot RF = 510Ω, VIN = ±1V, VH = +1V, VL = -1V, Input tR / tF = 2ns +25oC 4 % Negative Clamp Range (VL) RF = 510Ω +25oC -5.0 to +2.0 V Positive Clamp Range (VH) RF = 510Ω +25oC -2.0 to +5.0 V Clamp Input Bias Current VH = +1V, VL = -1V +25oC 50 µA Clamp Input Bandwidth VIN = ±100mV, VH or VL = 100mVP-P +25oC 500 MHz *See Typical Performance Curves For More Information All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see web site http://www.intersil.com Spec Number 222 511082-883