FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
December 2006
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Features
■ 0.1dB gain flatness to 30MHz ■ 0.07%/0.03° differential gain/phase error ■ 210MHz full power -3dB bandwidth at G = 2 ■ 1,100V/μs slew rate ■ ±55mA output current (drives dual video load) ■ ±83mA output short-circuit current ■ Output swings to within 1.3V of either rail ■ 3.6mA supply current per amplifier ■ Minimum stable gain of 3dB or 1.5V/V ■ FHP3350 - improved replacement for RC6333 ■ FHP3450 - improved replacement for RC6334 ■ Fully specified at +5V, and ±5V supplies
Description
The FHP3350 and FHP3450 are low-cost, high-performance, voltage-feedback amplifiers designed for video applications. These triple and quad amplifiers consume only 3.6mA of supply current per channel and are capable of driving dual (75Ω) video loads while providing 0.1dB of gain flatness to 30MHz. Consumer video applications also benefit from the low 0.07% differential gain and 0.03° differential phase errors. The FHP3350 offers three outputs that can be put into a high-impedance disable state to allow for video multiplexing or minimize power consumption. These amplifiers are designed to operate from 5V (±2.5V) to 12V (±6V) supplies. The outputs swing to within 1.3V of either supply rail to accommodate video signals on a single 5V supply. The FHP3350 and FHP3450 are designed on a complementary bipolar process. They provide 210MHz of full-power bandwidth and 1,100V/μs of slew rate at a supply voltage of ±5V. The combination of high performance, low power, and excellent video performance make these amplifiers well suited for use in many digital consumer video appliances as well as many generalpurpose, high-speed applications.
Applications
■ Video driver ■ RGB driver ■ ADC buffer ■ S-video amp ■ Active filters
Typical Application – Driving Dual Video Loads
+Vs 75Ω Cable 75Ω Rf Rg 75Ω 75Ω
+IN
75Ω Cable
OUT 75Ω
75Ω Cable
OUT 75Ω
-Vs
Ordering Information
Part Number FHP3350IMTC14X FHP3350IM14X FHP3450IMTC14X FHP3450IM14X
Moisture sensitivity level for all parts is MSL-1.
Package TSSOP-14 SOIC-14 TSSOP-14 SOIC-14
Lead Free Yes Yes Yes Yes
Operating Temp Range -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C
Packaging Method Reel Reel Reel Reel
FHP3350, FHP3450 Rev. 1.0.3
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
FHP3350 Pin Configurations
NC or DISABLE1 NC or DISABLE2 NC or DISABLE3 +Vs +IN1 -IN1 OUT1
1
2 3 4 14 13 12
FHP3350 Pin Assignments
Pin#
1
OUT2 -IN2 +IN2 -Vs +IN3 -IN3 OUT3
Pin
NC or DISABLE1
Description
Channel 1 ENABLED if pin is left open or pulled above VON, DISABLED if pin is grounded or pulled below VOFF Channel 2 ENABLED if pin is left open or pulled above VON, DISABLED if pin is grounded or pulled below VOFF Channel 3 ENABLED if pin is left open or pulled above VON, DISABLED if pin is grounded or pulled below VOFF Positive supply Positive Input, channel 1 Negative Input, channel 1 Output, channel 1 Output, channel 3 Negative Input, channel 3 Positive Input, channel 3 Negative supply Positive Input, channel 2 Negative Input, channel 2 Output, channel 2
FHP3350 TSSOP-14
2
NC or DISABLE2
11 10 9 8
5 6 7
3
NC or DISABLE3
4 5 6 7 8 9 10 11 12 13 14
+Vs +IN1 -IN1 OUT1 OUT3 -IN3 +IN3 -Vs +IN2 -IN2 OUT2
FHP3450 Pin Configurations
OUT1 -IN1 +IN1 +Vs +IN2 -IN2 OUT2
1
2 3 4 14 13 12
FHP3450 Pin Assignments
Pin#
1 2 3 4 5 6 7 8 9 10 11 12 13 14
OUT4 -IN4 +IN4 -Vs +IN3 -IN3 OUT3
Pin
OUT1 -IN1 +IN1 +Vs +IN2 -IN2 OUT2 OUT3 -IN3 +IN3 -Vs +IN4 -IN4 OUT4
Description
Output, channel 1 Negative Input, channel 1 Positive Input, channel 1 Positive supply Positive Input, channel 2 Negative Input, channel 2 Output, channel 2 Output, channel 3 Negative Input, channel 3 Positive Input, channel 3 Negative supply Positive Input, channel 4 Negative Input, channel 4 Output, channel 4
FHP3450 TSSOP-14
11 10 9 8
5 6 7
FHP3350, FHP3450 Rev. 1.0.3
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Absolute Maximum Ratings
The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table defines the conditions for actual device operation.
Parameter
Supply Voltage Input Voltage Range
Min.
0 -Vs - 0.5V
Max.
12.6 +Vs +0.5V
Unit
V V
Reliability Information
Parameter
Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10s) 14-Lead TSSOP1 14-Lead SOIC1
Note: 1. Package thermal resistance (θJA), JDEC standard, multi-layer test boards, still air. Assumed power is concentrated in one channel, θJA is lower if power is distributed in all channels.
Min.
-65
Typ.
Max.
150 150 300
Unit
°C °C °C °C/W °C/W
160 148
ESD Protection
ESD Protection
Package Human Body Model (HBM) Charged Device Model (CDM) Machine Model (MM)
FHP3350
SOIC 2kV 2kV 250V TSSOP 2kV 2kV 250V
FHP3450
SOIC 2kV 2kV TBD TSSOP 2kV 1.5kV TBD
Recommended Operating Conditions
Parameter
Operating Temperature Range Supply Voltage Range
Min.
-40 3
Typ.
Max.
+85 12
Unit
°C V
FHP3350, FHP3450 Rev. 1.0.3
3
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Electrical Characteristics at +5V
TA = 25°C, VS = 5V, Rf = 249Ω, RL = 150Ω to VS/2, G = 2; unless otherwise noted.
Symbol
BWss BWLs BW0.1dB tR, tF tS OS SR HD2 HD3 THD DG DP en in XTALK VIO dVIO Ibn dIbn IIO PSRR AOL IS ISD OFFISO OFFCOUT CHISO TON TOFF VOFF VON
Parameter
-3dB Bandwidth Full-Power Bandwidth 0.1dB Gain Flatness - Large Signal Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Differential Gain Differenital Phase Input Voltage Noise Input Current Noise Crosstalk Input Offset Voltage Average Drift Input Bias Current Average Drift Input Offset Current Power Supply Rejection Ratio Open Loop Gain Supply Current per Amplifier Disable Supply Current per Amp Off Isolation Off Output Capacitance Channel-to-Channel Isolation Turn-On Time Turn-Off Time Power Down Input Voltage Enable Input Voltage 5MHz DC DC
Conditions
No Peaking, G = +2, VOUT = 0.2Vpp No Peaking, G = +2, VOUT = 2Vpp G = +2, VOUT = 2Vpp VOUT = 0.2V step VOUT = 2V step VOUT = 0.2V step 2V step. G = -1 VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz NTSC (3.58MHz); AC coupled NTSC (3.58MHz); AC coupled > 100kHz > 100kHz at 5MHz
Min.
Typ.
190 190 35 2.0 20 2.5 800 -70 -80 -69 0.08 0.02 8.5 1 -70 1 10 ±50 0.33 ±50 75 55 3.0 35 -60 3 -85 300 80
Max.
Units
MHz MHz MHz ns ns % V/μs dBc dBc dB % ° nV/Hz pA/Hz dB mV μV/°C nA nA/°C nA dB dB mA μA dB pF dB ns ns
Frequency Domain Response
Time Domain Response
Distortion/Noise Response
DC Performance
Disable Mode 5MHz
Disable Characteristics
DISABLE pins; disabled if pin is grounded or pulled below VOFF DISABLE pins; enabled if pin is left open or pulled above VON +Vs - 1.9
+Vs - 3.1
V V
FHP3350, FHP3450 Rev. 1.0.3
4
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Electrical Characteristics at +5V (Continued)
TA = 25°C, VS = 5V, Rf = 249Ω, RL = 150Ω to VS/2, G = 2; unless otherwise noted.
Symbol
Input Characteristics RIN CIN CMIR CMRR Input Resistance Input Capacitance Input Common Mode Voltage Range Common Mode Rejection Ratio DC, VCM = 1.5V to 3.5V RL = 2kΩ to Vs/2 VO IOUT ISC Output Voltage Swing Linear Output Current Short-Circuit Output Current RL = 150Ω to Vs/2 VO = +Vs/2 VO = shorted to +Vs or GND 70 1 1.2 to 3.8 90 1 to 4 1.1 to 3.9 ±50 ±75 MΩ pF V dB
Parameter
Conditions
Min.
Typ.
Max.
Units
Output Characteristics V V mA mA
FHP3350, FHP3450 Rev. 1.0.3
5
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Electrical Characteristics at ±5V
TA = 25°C, VS = ±5V, Rf = 249Ω, RL = 150Ω to GND, G = 2; unless otherwise noted.
Symbol
BWss BWLs BW0.1dB BW0.1dBss tR, tF tS OS SR HD2 HD3 THD DG DP en in XTALK VIO dVIO Ibn dIbn IIO PSRR AOL IS ISD OFFISO OFFCOUT CHISO TON TOFF VOFF VON
Parameter
-3dB Bandwidth Full-Power Bandwidth 0.1dB Gain Flatness - Large Signal 0.1dB Gain Flatness - Small Signal Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Differential Gain Differenital Phase Input Voltage Noise Input Current Noise Crosstalk Input Offset Voltage1 Average Drift Input Bias Current1 Average Drift Input Offset Current1 Power Supply Rejection Ratio1 Open Loop Gain1 Supply Current per Amplifier1 Disable Supply Current per Amp1 Off Isolation Off Output Capacitance Channel-to-Channel Isolation Turn-On Time Turn-Off Time Power Down Input Voltage Enable Input Voltage 5MHz DC DC
Conditions
No Peaking, G = +2, VOUT = 0.2Vpp No Peaking, G = +2, VOUT = 2Vpp G = +2, VOUT = 2Vpp G = +2, VOUT = 0.2Vpp VOUT = 0.2V step VOUT = 2V step VOUT = 0.2V step 2V step. G = -1 VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz NTSC (3.58MHz); AC coupled NTSC (3.58MHz); AC coupled > 100kHz > 100kHz at 5MHz
Min.
Typ.
210 210 30 50 2 20 1 1100 -70 -74 -68 0.07 0.03 9 1 -71
Max.
Units
MHz MHz MHz MHz ns ns % V/μs dBc dBc dB % ° nV/Hz pA/Hz dB
Frequency Domain Response
Time Domain Response
Distortion / Noise Response
DC Performance -7 -500 -500 58 52 1 15 ±100 0.3 ±50 75 58 3.6 Disable Mode 5MHz 45 -65 3 -85 300 80 DISABLE pins; disabled if pin is grounded or pulled below VOFF DISABLE pins; enabled if pin is left open or pulled above VON +Vs - 1.9 +Vs - 3.1 5 100 500 500 7 mV μV/°C nA nA/°C nA dB dB mA μA dB pF dB ns ns V V
Disable Characteristics
Notes: 1. 100% tested at 25°C
FHP3350, FHP3450 Rev. 1.0.3
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Electrical Characteristics at ±5V (Continued)
TA = 25°C, VS = ±5V, Rf = 249Ω, RL = 150Ω to GND, G = 2; unless otherwise noted.
Symbol
Input Characteristics RIN CIN CMIR CMRR Input Resistance Input Capacitance Input Common Mode Voltage Range Common Mode Rejection Ratio1 DC, VCM = -3.5V to 3.5V RL = 2kΩ RL = 150Ω Vo = 0V VO shorted to GND
1
Parameter
Conditions
Min
Typ
70 0.6 -3.8 to 3.8
Max
Units
MΩ pF V dB
58
98 ±4
Output Characteristics VO IOUT ISC Output Voltage Swing Linear Output Current Short-Circuit Output Current V V mA mA ±3.2 ±3.7 ±55 ±83
Notes: 1. 100% tested at 25°C
FHP3350, FHP3450 Rev. 1.0.3
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Typical Performance Characteristics
TA = 25°C, VS = 5V, Rf = 249Ω, RL = 150Ω to VS/2, G = 2; unless otherwise noted.
4 1
Normalized Gain (dB)
0 -2 -4 -6 -8 -10 -12 0.1
Normalized Gain (dB)
2
G = 10 G=5 G=2
G = 1.5
0 -1 -2 -3 -4 -5 -6 -7
Vo = 0.2Vpp G = -10 G = -5 G = -2
G = -1
Vo = 0.2Vpp
1
10
100
1000
0.1
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
Figure 1. Non-Inverting Freq. Response (±5V)
Figure 2. Inverting Freq. Response (±5V)
3
G = 1.5
1
Normalized Gain (dB)
-3 -6 -9 -12 -15 -18 -21 0.1 1
Vo = 0.2Vpp
Normalized Gain (dB)
0
G = 10 G=5 G=2
0 -1 -2 -3 -4 -5 -6 -7
Vo = 0.2Vpp G = -10 G = -5 G = -2
G = -1
10
100
1000
0.1
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
Figure 3. Non-Inverting Freq. Response (+5V)
Figure 4. Inverting Freq. Response (+5V)
3
Normalized Gain (dB)
Normalized Gain (dB)
0 -3 -6 -9 -12 -15 -18 -21 0.1
Vo = 0.2Vpp CL = 500pF RS = 10Ω
CL = 100pF RS = 20Ω CL = 50pF RS = 30Ω
1
0 -1 -2 -3 -4 -5 -6 -7 -8
Vo = 0.2Vpp RL = 50 RL = 150 RL = 1k
CL = 1000pF RS = 7Ω CL = 2000pF RS = 5Ω
+ 1kΩ 1kΩ Rs CL RL
1
10
100
1000
0.1
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
Figure 5. Frequency Response vs. CL (+5V)
Figure 6. Frequency Response vs. RL (+5V)
FHP3350, FHP3450 Rev. 1.0.3
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Typical Performance Characteristics
TA = 25°C, VS = 5V, Rf = 249Ω, RL = 150Ω to VS/2, G = 2; unless otherwise noted.
1 1.0
Normalized Gain (dB)
-1 -2 -3 -4 -5 -6 -7 0.1 1 10 100 1000
VO = 1Vpp VO = 4Vpp
Normalized Gain (dB)
0
0.75 0.50 0.25 0
VS = ±5V Vo = 2Vpp VS = 5V Vo = 0.2Vpp VS = ±5V Vo = 0.2Vpp
0.1dB -0.1dB
-0.25 -0.50 -0.75 -1.0 0.1 1
VO = 2Vpp
10
100
1000
Frequency (MHz)
Frequency (MHz)
Figure 7. Large Signal Freq. Response (±5V)
Figure 8. Gain Flatness vs. Frequency
-45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.1
VO = 2Vpp
-45 -50 -55 -60 -65 -70 -75 -80
RL = 1k
VO = 2Vpp
HD2 (dBc)
RL = 150
HD3 (dBc)
RL = 150
-85 -90 -95 10 0.1 1
RL = 1k
1
10
Frequency (MHz)
Frequency (MHz)
Figure 9. HD2 vs. Frequency (±5V)
Figure 10. HD3 vs. Frequency (±5V)
-45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
30MHz
-45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
1MHz 10MHz 5MHz 30MHz
HD2 (dBc)
5MHz 1MHz
Output Amplitude (Vpp)
HD3 (dBc)
10MHz
Output Amplitude (Vpp)
Figure 11. HD2 vs. Vo (±5V)
Figure 12. HD3 vs. Vo (±5V)
FHP3350, FHP3450 Rev. 1.0.3
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Typical Performance Characteristics
TA = 25°C, VS = 5V, Rf = 249Ω, RL = 150Ω to VS/2, G = 2; unless otherwise noted.
90 80
+5V ±5V
90 80
+5V, ±5V
CMRR (dB)
60 50 40 30 20 10k 100k 1 10 100
PSRR (dB)
70
70 60 50 40 30 10k 100k 1 10 100
Frequency (MHz)
Frequency (MHz)
Figure 13. CMRR vs. Frequency
Figure 14. PSRR vs. Frequency
80 70
0
Phase
100
-20 -40 -60 -80 -100 -120
Gain
Input Voltage Noise (nV/√Hz)
90 80 70 60 50 40 30 20 10 0 0.0001 0.001 0.01 0.1 1 10 100
Open Loop Gain (dB)
60 50 40 30 20 10 0 -10 -20
Open Loop Phase (°)
-140 -160 -180 -200
Vs = +5V + ±5V
10k
100k
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
Figure 15. Open Loop Gain & Phase vs. Freq.
Figure 16. Input Voltage Noise (+5V)
-35 -40 -45
0.25 0.20
Crosstalk (dB)
-55 -60 -65 -70 -75 -80 -85 0.1 1 10 100
+5V ±5V
Voltage (V)
-50
0.15 0.10 0.05 0
-0.05 0 10 20 30 40 50 60 70 80 90 100
Frequency (MHz)
Time (ns)
Figure 17. Crosstalk vs. Frequency (+5V)
Figure 18. Small Signal Pulse Response (+5V)
FHP3350, FHP3450 Rev. 1.0.3
10
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Typical Performance Characteristics
TA = 25°C, VS = 5V, Rf = 249Ω, RL = 150Ω to VS/2, G = 2; unless otherwise noted.
2.5 2.0 0.25 0.20
Voltage (V)
1.0 0.5 0 -0.5 0 10 20 30 40 50 60 70 80 90 100
Voltage (V)
1.5
0.15 0.10 0.05 0
-0.05 0 10 20 30 40 50 60 70 80 90 100
Time (ns)
Time (ns)
Figure 19. Large Signal Pulse Response (+5V)
Figure 20. Small Signal Pulse Response (±5V)
2.25 2.0 1.75 1.50 1.25 1.0 0.75 0.50 0.25 0 -0.25 0 10 20 30 40 50 60 70 80 90 100
4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -0.5 0 10 20 30 40 50 60 70 80 90 100
Voltage (V)
Time (ns)
Voltage (V)
Time (ns)
Figure 21. Large Signal Pulse Response (±5V)
Figure 22. Large Signal Pulse Response (±5V)
0.04 0.03
0.04
0.08 0.06
0.08
Phase Gain
Differential Gain (%)
0.02 0.01 0
0.02 0.01
Differential Gain (%)
Gain
0.03
0.06
Differential Phase (°)
Differential Phase (°)
0.04 0.02 0
0.04 0.02 0 -0.02 -0.04
Phase
0 -0.01 -0.02
-0.01 -0.02 -0.03 -0.04
NTSC - AC Coupled into 220µF
-0.02 -0.04 -0.06 -0.08
NTSC - DC Coupled
-0.03 -0.04 0.15 0.25 0.35
-0.06 -0.08 0.05 0.15 0.25 0.35
-0.35
-0.25
-0.15
-0.05
0.05
-0.35
-0.25
-0.15
-0.05
Input Voltage (V)
Input Voltage (V)
Figure 23. Differential Gain and Phase (±2.5V)
Figure 24. Differential Gain and Phase (±2.5V)
FHP3350, FHP3450 Rev. 1.0.3
11
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Typical Performance Characteristics
TA = 25°C, VS = 5V, Rf = 249Ω, RL = 150Ω to VS/2, G = 2; unless otherwise noted.
0.06 0.04
Gain
0.06 0.04
0.06 0.04
Gain
0.06 0.04
Differential Phase (°)
Differential Phase (°)
Differential Gain (%)
0.02 0
Phase
0.02 0 -0.02 -0.04 -0.06
NTSC - AC Coupled
Differential Gain (%)
0.02 0
Phase
0.02 0 -0.02 -0.04 -0.06
-0.02 -0.04 -0.06 -0.08
-0.02 -0.04 -0.06 -0.08
NTSC - DC Coupled
-0.08 0.1 0.3 0.5 0.7
-0.08 0.1 0.3 0.5 0.7
-0.7
-0.5
-0.3
-0.1
-0.7
-0.5
-0.3
-0.1
Input Voltage (V)
Input Voltage (V)
Figure 25. Differential Gain and Phase (±5V)
3 2 0.15 0.1
Figure 26. Differential Gain and Phase (±5V)
-40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 0.1
Measuring CH1 with 0.2Vpp on Ch3 Measuring CH3 with 0.2Vpp on Ch1
0
Output
0 -0.05
-1 -2 -3 0 2 4 6 8 10 12 14 16 18 20
Disable
-0.1 -0.15
Isolation (dB)
Disable (V)
1
0.05
Output (V)
1
10
100
Time (µs)
Frequency (MHz)
Figure 27. Enable/Disable Response (±2.5V)
-35 -40 -45
Figure 28. Channel-to-Channel Isolation (+5V)
210
-50 -55 -60 -65 -70 -75 -80 -85 0.1 1 10 100
Off Output Impedance (dBΩ)
Any Channel
190 170 150 130 110 90 70 50 30 10 10k
Vs = 5V & ±5V (120dBΩ = 1MΩ)
Off Isolation (dB)
100k
1
10
100
Frequency (MHz)
Frequency (MHz)
Figure 29. Off Isolation (+5V)
Figure 30. Off Output Impedance (+5V)
FHP3350, FHP3450 Rev. 1.0.3
1
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Applications Information
General Description
The FHP3350 and FHP3450 are low-cost, high-performance, voltage feedback amplifiers designed for video applications. These triple and quad amplifiers consume only 3.6mA of supply current per channel and are capable of driving dual (75Ω) video loads while providing 0.1dB of gain flatness to 30MHz. Consumer video applications also benefit from the low 0.07% differential gain and 0.03° differential phase errors. The FHP3350 offers three outputs that can be put into a high-impedance disable state to allow for video multiplexing or minimize power consumption. These amplifiers are designed to operate from 5V (±2.5V) to 12V (±6V) supplies. The outputs swing to within 1.3V of either supply rail to accommodate video signals on a single 5V supply. The FHP3350 and FHP3450 are designed on a complementary bipolar process. They provide 210MHz of full-power bandwidth and 1,100V/μs of slew rate at a supply voltage of ±5V. The combination of high performance, low power, and excellent video performance make these amplifiers well suited for use in many digital consumer video appliances as well as many general-purpose, high-speed applications.
Where Is is the supply current, Vs+ is the positive supply pin voltage, Vs- is the negative supply pin voltage, Vo(RMS) is the RMS output voltage and IOUT(RMS) is the RMS output current delivered to the load. Follow the maximum power derating curves shown in Figure 32 below to ensure proper operation.
Maximum Power Dissipation (W)
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 -40 -20 0 20 40 60 80
TSSOP-14 SOIC-14
Ambient Temperature (°C)
Figure 32. Maximum Power Derating Overdrive Recovery
For an amplifier, an overdrive condition occurs when the output and/or input ranges are exceeded. The recovery time varies based on whether the input or output is overdriven and by how much the ranges are exceeded. The FHP3350/3450 will typically recover in less than 50ns from an overdrive condition. Figure 33 shows the FHP3350 in an overdriven condition.
Driving Capacitive Loads
The Frequency Response vs. CL plot on page 8, illustrates the response of the FHP3350 Family. A small series resistance (Rs) at the output of the amplifier, illustrated in Figure 1, will improve stability and settling performance. Rs values in the Frequency Response vs. CL plot were chosen to achieve maximum bandwidth with less than 1dB of peaking. For maximum flatness, use a larger Rs.
2 1.5
Vs = ±2.5V G = +5
Output
Amplitude (V)
Rs Rf Rg CL RL
1 0.5 0
Input
-0.5 -1 -1.5 -2 0 0.1 02 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Figure 31. Typical Topology for Driving Capacitive Loads Power Dissipation
The maximum internal power dissipation allowed is directly related to the maximum junction temperature. If the maximum junction temperature exceeds 150°C for an extended time, device failure may occur. The FHP3350 and FHP3450 are short circuit protected. However, this may not guarantee that the maximum junction temperature (+150°C) is not exceeded under all conditions. RMS Power Dissipation can be calculated using the following equation: Power Dissipation = Is * (Vs+ - Vs-) + (Vs+ - Vo(RMS)) * IOUT(RMS)
Time (µs)
Figure 33. Overdrive Recovery
FHP3350, FHP3450 Rev. 1.0.3
13
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Layout Considerations
General layout and supply bypassing play major roles in high frequency performance. Fairchild has evaluation boards to use as a guide for high frequency layout and as aid in device testing and characterization. Follow the steps below as a basis for high frequency layout: • Include 6.8μF and 0.01μF ceramic capacitors • Place the 6.8μF capacitor within 0.75 inches of the power pin • Place the 0.01μF capacitor within 0.1 inches of the power pin • Remove the ground plane under and around the part, especially near the input and output pins to reduce parasitic capacitance • Minimize all trace lengths to reduce series inductances Refer to the evaluation board layouts below for more information.
Evaluation Board Information
The following evaluation boards are available to aid in the testing and layout of these devices:
Evaluation Board #
KEB019 KEB020 KEB012 KEB018
Products
FHP3350IM14X FHP3350IMTC14X FHP3450IMTC14X FHP3450IM14X
Figure 35. FHP3350 KEB019 (Top Side)
Evalutaion Board Schematics
DISABLE 1 IN1 1
RIN1
RF1
ROUT1 OUT1
RG1
DISABLE 2 IN2 2
RIN2
RF2
ROUT2 OUT2
RG2
DISABLE 3 IN3 3
RIN3
RF3
ROUT3 OUT3
RG3
Figure 36. FHP3350 KEB019 (Bottom Side)
Figure 34. FHP3350 KEB019/KEB020 Schematic
FHP3350, FHP3450 Rev. 1.0.3
14
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Figure 37. FHP3350 KEB020 (Top Side)
Figure 39. FHP3450 KEB012/KEB018 Schematic
Figure 38. FHP3350 KEB020 (Bottom Side)
Figure 40. FHP3450 KEB012 (Top Side)
FHP3350, FHP3450 Rev. 1.0.3
15
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Figure 41. FHP3450 KEB012 (Bottom Side)
Figure 43. FHP3450 KEB018 (Bottom Side)
Figure 42. FHP3450 KEB018 (Top Side)
FHP3350, FHP3450 Rev. 1.0.3
1
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Mechanical Dimensions
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC14 RevD
FHP3350, FHP3450 Rev. 1.0.3
1
www.fairchildsemi.com
FHP3350, FHP3450 Triple and Quad Voltage Feedback Amplifiers
Mechanical Dimensions
14-Lead Small Outline Package (SOIC) Number M14A RevL
FHP3350, FHP3450 Rev. 1.0.3
1
www.fairchildsemi.com
© 2006 Fairchild Semiconductor Corporation FHP3350, FHP3450 Rev. 1.0.3 15
www.fairchildsemi.com