TSH341
300MHz Single Supply Video Amplifier with Low In/Out Rail
Bandwidth: 300MHz Single supply operation down to 3V Low input & output rail Very low harmonic distortion Slew rate: 400V/s Voltage Input noise: 7nV/Hz Specified for 150 load and 100 load Tested on 5V power supply Data min. and max. are tested during production (Table 3)
Pin Connections (top view)
OUT 1 -VCC 2 +IN 3 SOT23-5
5 +VCC
+4 -IN
D escr iption
The TSH341 is a single supply operational amplifier featuring a large bandwidth of 300MHz at unity gain for only 9.8mA of quiescent current. An advantage of this circuit is its low input and output rail feature which is very close to GND in single supply. This rail is tested and guaranteed during production at 60mV (max.) from GND on a 150 load. This allows a good output swing which fits perfectly when driving a video signal on a 75 video line. Chapter 5 gives technical support when using the TSH341 as a driver for video DAC output on a video line. In particular, this chapter focuses on applying a video signal DC shift to avoid any clamping of the synchronization tip. The TSH341 is available in the tiny SOT23-5 and SO8 plastic packages.
NC 1 -IN 2 +IN 3 -VCC 4 SO8 _ + 8 NC 7 +VCC 6 OUT 5 NC
Applications
High-end video systems High Definition TV (HDTV) Broadcast video Multimedia products
Order Codes
Part Number TSH341ILT TSH341ID TSH341IDT Temperature Range -40C to +85C Package SOT23-5 S O -8 Packaging Tape & Reel Tube Tape & Reel Marking K307 H341I H341I
March 2005
Revision 2
1/13
TSH341
Absolute Maximum Ratings
1 Absolute Maximum Ratings
Table 1. Key parameters and their absolute maximum ratings
Symbol VC C Vid Vin Toper Tstd Tj Rthjc Supply voltage
1 2
Parameter
Value 6 +/-0.5 -0.2 to +3 -40 to +85 -65 to +150 150 80 28 250 175 500 715 2 1.5 200
4
Unit V V V C C C C /W
Differential Input Voltage
3
Input Voltage Range Operating Free Air Temperature Range Storage Temperature Maximum Junction Temperature Thermal Resistance Junction to Case SOT23-5 SO8 Thermal Resistance Junction to Ambient Area SOT23-5 SO8 Maximum Power Dissipation (@Ta=25C) for Tj=150C SOT23-5 SO8 CDM: Charged Device Model HBM: Human Body Model MM: Machine Model Output Short Circuit
Rthja
C /W
Pmax.
mW kV kV V
ESD
1) 2) 3) 4)
All voltage values, except differential voltage are with respect to network terminal. Differential voltage are non-inverting input terminal with respect to the inverting input terminal. The magnitude of input and output voltage must never exceed VCC +0.3V. An output current limitation protects the circuit from transient currents. Short-circuits can cause excessive heating. Destructive dissipation can result from short circuit on amplifiers.
Table 2. Operating conditions
Symbol VC C Vicm
1)
Parameter Power Supply Voltage Common Mode Input Voltage
Value 3 to 5.5 -0.4 to 3
1
Unit V V
Tested in full production at 0V/5V single power supply
2/13
Electrical Characteristics
TSH341
2 Electrical Characteristics
Table 3. VCC = +5V, Tamb = 25C (unless otherwise specified)
Symbol DC Performance Vio Vio Iib AVD C MR SVR PSR RI N CI N ICC Input Offset Voltage Vio drift vs. Temperature Input Bias Current Open Loop Gain Common Mode Rejection Ratio 20 log (Vicm/Vio) Supply Voltage Rejection Ratio 20 log (Vcc/Vio) Power Supply Rejection Ratio 20 log (Vcc/Vout) Input Resistance Input Capacitance Total Supply Current No Load, Vicm=0.6V Tamb, Vicm=0.6V -40C < Tamb < +85C -40C < Tamb < +85C Tamb, Vicm=0.6V -40C < Tamb < +85C VOUT=2V, RL=150 Vicm = 2V -40C < Tamb < +85C Vcc=4V to 5V, Vicm=0.6V -40C < Tamb < +85C Vcc=200mVp-p, F=1MHz -6 0 70 -6 0 -1 5 -3 -5 -3 0 6 7.2 100 -8 5 -8 3 -8 5 -8 4 -7 7 8.2 3.5 9.8 12.7 16 15 mV V/C A dB dB dB dB M pF mA Parameter Test Condition Min. Typ. Max. Unit
Dynamic Performance and Output Characteristics -3dB Bandwidth Small Signal VOUT=20mVp Vicm=0.6V, RL=150 Gain=+1 Gain=+2 Small Signal VOUT=20mVp Gain=+2, Vicm=0.6V, RL=150 Vicm=2V, VOUT = 2Vp-p, Gain=1, RL = 150 VOUT=2Vp-p, RL=150, Gain=+2, RL = 150 RL = 150 Tamb -40C < Tamb < +85C 70 3.7 70
Bw Gain Flatness @ 0.1dB
90
300 150 65
MH z
FPBW SR V OH V OL IOUT
Full Power Bandwidth Slew Rate High Level Output Voltage Low Level Output Voltage Output Short Circuit Current
100 400 3.9 40 100 90 60
MH z V/s V mV mA
Noise and Distortion eN iN H D2 H D3 Equivalent Input Noise Voltage Equivalent Input Noise Current (+) 2nd Harmonic Distortion 3rd Harmonic Distortion F = 100kHz F = 100kHz VOUT= 2Vp-p, RL = 150 Gain=+2, F= 10MHz, VOUT= 2Vp-p, RL = 150 Gain=+2, F= 10MHz, 7 1.5 -57 -63 nV/Hz pA/Hz dBc dBc
3/13
TSH341
Figure 1. Frequency response
16 14 12 10 8 6 4 2 0 -2 -4 -6 -8 -10 -12 -14 -16 1M
Electrical Characteristics
Figure 4. Frequency response on capa-load
20
Gain=+4
Frequency Response (dB)
C=47pF Riso=10
10
C=10pF Riso=0
Gain (dB)
Gain=+2
0
Gain=+1
C=22pF Riso=10
-10
Vcc=5V Load=100 or 150 SO8 and SOT23-5
10M 100M
Vcc=5V Gain=+2 Load=Riso + C//1k (to ground)
-20 1M 10M
C=0 or 10pF Riso=0
100M
Frequency (Hz)
Frequency (Hz)
Figure 2. Gain flatness - SOT23-5L
Figure 5. Gain flatness - SO8
6,4 6,2 6,0 5,8
6,4
Load=150
6,2 6,0 5,8
Load=150
Gain (dB)
Gain (dB)
5,6 5,4 5,2 5,0 4,8 4,6 1M
5,6 5,4 5,2 5,0
Load=100
Load=100
Vcc=5V Gain=+2
10M 100M
4,8 4,6 1M
Vcc=5V
10M 100M
Frequency (Hz)
Frequency (Hz)
Figure 3. Total input noise vs. frequency
Figure 6. Positive and negative slew rate
3,0
non-inverting input in short-circuit Vcc=5V
2,5
Vcc=5V G=+2 Load=100 or 150
Input Noise (nV/VHz)
100
Output Response (V)
SR+
2,0
1,5
SR-
1,0
0,5
10 100 1k 10k 100k 1M 10M
0,0 -5ns -4ns -3ns -2ns -1ns 0s 1ns 2ns 3ns 4ns 5ns
Frequency (Hz)
Time
4/13
Electrical Characteristics
Figure 7. Distortion on 100 load
-20 -25 -30 -35 HD3 (30MHz) HD2 (30MHz)
TSH341
Figure 10. Distortion on 150 load
-10 -15 -20 -25 HD2 (30MHz)
HD2 & HD3 (dBc)
-45 -50 -55 -60 -65 -70 -75 -80 -85 -90 0 1 2 3 4 HD3 (10MHz) HD2 (10MHz)
HD2 & HD3 (dBc)
-40
-30 -35 -40 -45 -50 -55 -60 -65
HD3 (30MHz)
HD3 (10MHz)
Vcc=5V Load=100
-70 -75 -80 0 1 2
HD2 (10MHz) 3
Vcc=5V Load=150
4
Output Amplitude (Vp-p)
Output Amplitude (Vp-p)
Figure 8. Output lower rail vs. frequency
500
Figure 11. Output voltage swing vs. Vcc
5
Vcc=5V Load=100 or 150
400
4
VOL (mV)
300
Vout max (Vp-p)
100k 1M 10M 100M
3
200
2
100
1
F=30MHz Load=100 or 150
0 10k
0 3,00 3,25 3,50 3,75 4,00 4,25 4,50 4,75 5,00
Frequency (Hz)
Vcc (V)
Figure 9. Output voltage swing vs. frequency
5
Figure 12. Quiescent current vs. Vcc
20
no load
4
15
Vout max. (Vp-p)
Icc (mA)
Vcc=5V Gain=+2 Load=100 or Load=150
10M
3
10
2
5
1
0 1M
0 1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
Frequency (Hz)
Vcc (V)
5/13
TSH341
Figure 13. Isource
0 -10 -20 -30
+5V VOH without load
Electrical Characteristics
Figure 16. Reverse isolation vs. frequency
0
-20
Isource (mA)
-40
+3V
Isource V 0V
-50 -60 -70 -80 -90 -100 -110 -120 0,0 0,5 1,0
Gain (dB)
-40
-60
-80
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
-100 1M
Small Signal Vcc=5V Load=100
10M 100M 1G
V (V)
Frequency (Hz)
Figure 14. Bandwidth vs. temperature
300
Figure 17. Ibias vs. temperature
11,0
10,5 250 10,0
Bw (MHz)
IBIAS (A)
Vcc=5V Gain=+1 Load=150
200
9,5
9,0 150 8,5
Vcc=5V Load=150
-20 0 20 40 60 80
100 -40
-20
0
20
40
60
80
8,0 -40
Temperature (C)
Temperature (C)
Figure 15. Input offset vs. temperature
Figure 18. Supply current vs. temperature
12
0 11 -1 10
Vio (mV)
-2
ICC (mA)
9
-3
-4
8
Vcc=5V Load=150
-5 -40 -20 0 20 40 60 80 7 -40
Vcc=5V no Load
-20 0 20 40 60 80
Temperature (C)
Temperature (C)
6/13
Electrical Characteristics
Figure 19. Output lower rail vs. temperature
0,10
TSH341
Figure 21. Output higher rail vs. temperature
4,50
0,08
Vcc=5V Gain=+2 Load=150
4,25
VOL (V)
VOH (V)
0,06
4,00
0,04
3,75 0,02
Vcc=5V Gain=+2 Load=150
-20 0 20 40 60 80 3,50 -40 -20 0 20 40 60 80
0,00 -40
Temperature (C)
Temperature (C)
Figure 20. SVR vs. temperature
86,0 85,8 85,6
Figure 22. CMR vs. temperature
88
86 85,4
85,0 84,8 84,6
CMR (dB)
SVR (dB)
85,2
84
82 84,4 84,2 84,0 -40
Vcc=5V
-20 0 20 40 60 80 80 -40
Vcc=5V
-20 0 20 40 60 80
Temperature (C)
Temperature (C)
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TSH341
Evaluation Boards
3 Evaluation Boards
An evaluation board kit optimized for high speed operational amplifiers is available (order code: KITHSEVAL/STDL). The kit includes the following evaluation boards, as well as a CD-ROM containing datasheets, articles, application notes and a user manual:
SOT23_SINGLE_HF
BOARD: Board for the evaluation of a single high-speed op-amp in SOT23-5
package.
SO8_SINGLE_HF: SO8_DUAL_HF: SO8_S_MULTI:
Board for the evaluation of a single high-speed op-amp in SO8 package.
Board for the evaluation of a dual high-speed op-amp in SO8 package.
Board for the evaluation of a single high-speed op-amp in SO8 package in inverting and non-inverting configuration, dual and signle supply. Board for the evaluation of a triple high-speed op-amp in SO14 package with video application considerations.
SO14_TRIPLE:
Board material:
2
layers (r=4.6) 1.6mm thickness: 35m
FR4
epoxy
copper
Figure 23: Evaluation kit for high speed op-amps
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Power Supply Considerations
TSH341
4 Power Supply Considerations
Correct power supply bypassing is very important for optimizing performance in high-frequency ranges. Bypass capacitors should be placed as close as possible to the IC pins to improve high-frequency bypassing. A capacitor greater than 10F is necessary to minimize the distortion. For better quality bypassing, a capacitor of 10nF is added using the same implementation conditions. Bypass capacitors must be incorporated for both the negative and the positive supply. On the SO8_SINGLE_HF board, these capacitors are C8 and C6. Figure 24: Circuit for power supply bypassing
+V C C + 10nF + +V C C TSH341 _ GND
10microF
9/13
TSH341
Using the TSH341 to Drive Video Signals
5 Using the TSH341 to Drive Video Signals
Figure 25. Implementation of the video driver on output video DACs
Volt
Video Signal
2.250V
Volt
250mV
Reconstruction Filtering
+5V
+ _
time
Video Signal
1.125V
125mV
time
Video DAC
1Vpp
LPF
75
75 Cable
75
2Vpp
1Vpp
Rg
Rfb
VOL(50MHz) = 150mV (Figure 8) To drive the video signal properly, the output of the driver must be at least equal to 250mV (assuming Vio and VOL variations).
1st
solution:
Set the video DAC 0-IRE output level to 125mV.
White Level
100 IRE
Image Content
Black Level
30 IRE
300mV 1Vp-p 150mV 0V
Synchronization Tip
0 IRE
2nd
solution:
Implementation of a DC component in the input of the driver.
Volt
Video Signal
2.250V
Volt
250mV 33uF Video DAC
1Vpp
Reconstruction Filtering
+5V
+ _
time
Video Signal
1.125V
125mV
tim e
LPF
75
75 Cable
1k
75
2Vpp
1Vpp
DC component =125mV
Rg
Rfb
10/13
Package Mechanical Data
TSH341
6 Package Mechanical Data
6.1 SO-8 Package
SO-8 MECHANICAL DATA
DIM. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. MIN. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 0.228 0.010 0.016 TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 MIN. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157
8 (max.)
0.04
00160 23/C
11/13
TSH341 6.2 SOT23-5L (5-pin) package
Package Mechanical Data
SOT23-5L MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b C D E E1 e e1 L 0.35 0.90 0.00 0.90 0.35 0.09 2.80 2.60 1.50 0 .95 1.9 0.55 13.7 TYP MAX. 1.45 0.15 1.30 0.50 0.20 3.00 3.00 1.75 MIN. 35.4 0.0 35.4 13.7 3.5 110.2 102.3 59.0 37.4 74.8 21.6 TYP. MAX. 57.1 5.9 51.2 19.7 7.8 118.1 118.1 68.8 mils
12/13
TSH341
7 Revision History
Date 01 Jan. 2005 23 Mar. 2005 Revision 1 2 Description of Changes First release corresponding to Preliminary Data version of datasheet. Datasheet of mature, full-specification product
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement 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 STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2005 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
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