TSH80 STMICROELECTRONICS | Alldatasheet
Document overview
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Technical content
Wide Band, Rail-to-Rail Operational Amplifier with Standby Function ■ 4.5V, 12V operating conditions ■ 3dB-bandwidth: 100MHz ■ Slew-rate: 100V/µs ■ Output current: up to 55mA ■ Input single supply voltage ■ Output rail-to-rail ■ Specified for 150Ω load ■ Low distortion, THD: 0.1% ■ SOT23-5, TSSOP and SO packages
Description
The TSH8x series offers single and dual operational amplifiers featuring high video performances with large bandwidth, low distortion and excellent supply voltage rejection. These amplifiers feature also large output voltage swing and high output current capability to drive standard 150Ω loads. Running at single or dual supply voltage from 4.5V to 12V , these amplifiers are tested at 5V(±2.5V) and 10V(±5V) supplies. The TSH81 also features a standby mode, which allows the operational amplifier to be put into a standby mode with low power consumption and high output impedance.The function allows power saving or signals switching/multiplexing for high speed applications and video applications. For board space and weight saving, TSH8x series is proposed in SOT23-5, TSSOP8 and SO-8 packages. Application ■ Video buffers ■ A/D converters driver ■ Hi-Fi applications Pin Connections (top view) D SO-8 (Plastic Micro package) L SOT23-5 (Plastic Micro package) P TSSOP8 (Plastic Micro package) TSH80 : SOT23-5/SO8 VCC - VCC + + - Non-Inv. In. Inv. In. VCC - VCC + NC NC STANDBY Non Inverting Input Inverting Input Output TSH81 : SO8/TSSOP8 VCC - VCC +1 6Non Inverting Input1 Inverting Input1 Output2 Output1 Non Inverting Input2 Inverting Input2+ TSH82 : SO8/TSSOP8 Output VCC - VCC + NC NC Output+ NC Inv. In. Non-Inv. In. TSH80 : SOT23-5/SO8 VCC - VCC + + - Non-Inv. In. Inv. In. VCC - VCC + NC NC STANDBY Non Inverting Input Inverting Input Output TSH81 : SO8/TSSOP8 VCC - VCC +1 6Non Inverting Input1 Inverting Input1 Output2 Output1 Non Inverting Input2 Inverting Input2+ TSH82 : SO8/TSSOP8 Output VCC - VCC + NC NC Output+ NC Inv. In. Non-Inv. In.
Type Temperature Range Package Packaging Marking TSH80IL T -40°C to +85°C SOT23-5 Tape & Reel K303 TSH80IYL T SOT23-5 (automotive grade level) K310 TSH80ID/DT SO-8 T ube or T ape & Reel TSH80I TSH80IYD/IYDT -40°C to +125°C SO-8 (automotive grade level) SH80IY TSH81ID/DT -40°C to +85°C SO-8 TSH81I TSH81IPT TSSOP8 Tape & Reel SH81I TSH82ID/DT SO-8 T ube or T ape & Reel TSH82I TSH82IPT TSSOP8 Tape & Reel SH82I TSH82IYD/ITDT -40°C to +125°C SO-8 (automotive grade level) T ube or T ape & Reel SH82IY
1 Absolute Maximum Ratings
Table 1. Key parameters and their absolute maximum ratings Table 2. Operating conditions
- All voltage values, except differential voltage are with respect to network ground terminal
- Differential voltages are non-inverting input terminal with respect to the inverting terminal
- The magnitude of input and output must never exceed V CC +0.3V
- Short-circuits can cause excessive heating
2 Electrical Characteristics
Table 3. V CC Input Offset Voltage Drift vs.
Table 4. V CC Input Offset Voltage Drift vs.
Table 5. Standby mode
3 Inter Modulation Products
having the same amplitude level. Figure 13. Standby mode - Ton, Toff Figure 14. Group delay Figure 15. Third order inter modulation
4 Testing Conditions
4.1 Layout precautions:
- First of all, the implementation of a proper ground plane in both sides of the PCB is mandatory for high speed circuit applications to provide low inductance and low resistance common return.
- Power supply bypass capacitors (4.7uF and ceramic 100pF) should be placed as close as possible to the IC pins in order to improve high frequency bypassing and reduce harmonic distortion. The power supply capacitors must be incorporated for both the negative and the positive pins.
- Proper termination of all inputs and outputs must be in accordance with output termination resistors; then the amplifier load will be only resistive and the stability of the amplifier will be improved. All leads must be wide and as short as possible especially for op amp inputs and outputs in order to decrease parasitic capacitance and inductance.
- For lower gain application, attention should be paid not to use large feedback resistance (>1kΩ) to reduce time constant with parasitic capacitances.
- Choose component sizes as small as possible (SMD).
- Finally, on output, the load capacitance must be negligible to maintain good stability. Y ou can put a serial resistance the closest to the output pin to minimize its influence.
4.2 Maximum input level:
- Negative peak: must be greater than -Vcc+400mV.
- Positive peak value: must be lower than +Vcc-400mV . The electrical characteristics show the influence of the load on this parameter.
Figure 31. CCIR330 video line
4.3 Video capabilities:
To characterize the differential phase and differential gain a CCIR330 video line is used. signal. The chrominance gives various phases which define the color of the signal. high frequency information at all luminance levels. When differential gain is present, color saturation is not correctly reproduced. Figure 32. Measurement on Rhode and Schwarz VSA Table 6. Video results
5 Precautions on Asymmetrical Supply Operation
designed, in order to reject any noise present on the supply rail. offset mismatch at the amplifier inputs. well as for the input and output signals. We choose C1=100nF and C2=C3=100uF . R2, R3 are such that the current through them must be superior to 100 times the bias current. Cin, as Cout are chosen to filter the DC signal by the low pass filters (R1,Cin) and (Rout, Cout). Some precautions have to be added, specially for low power supply application. A feedback capacitance Cf shou ld be added for better stability. The table summarizes the impact of the capacitance Cf on the phase margin of the circuit. Figure 33. Use of the TSH8x in gain = -1 configuration
signal (LPF1) or a NTSC signal (LPF2). Y ou can multiplex input signals, as the outputs are in high impedance state in standby mode. The video application requires 1Vpeak at input and output. A decoupling capacitor is provided to cutoff the frequencies below 10Hz according I bias. Hence Ce=10uF, with Rb1=10kΩ. At the output, Cout=220uF . the output resistance of the filter.V3=V2/A1 where A1 is the attenuation factor of the filter LPF1. Table 7. Capacitance Cf on the phase margin of the circuit Figure 34. Example of a video application
6 Package Mechanical Data
In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at:
6.1 SO-8 Package
DIM. mm. inch A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ˚ (max.) ddd 0.1 0.04 SO-8 MECHANICAL DATA 0016023/C
6.2 TSSOP8 Package
DIM. mm. inch A 1.2 0.047 A1 0.05 0.15 0.002 0.006 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 e 0.65 0.0256 K0 ˚ 8 ˚ 0 ˚ 8 ˚ L1 1 0.039 TSSOP8 MECHANICAL DATA 0079397/D
6.3 SOT23-5 Package
DIM. mm. mils A 0.90 1.45 35.4 57.1 A1 0.00 0.15 0.0 5.9 A2 0.90 1.30 35.4 51.2 b 0.35 0.50 13.7 19.7 C 0.09 0.20 3.5 7.8 D 2.80 3.00 110.2 118.1 E 2.60 3.00 102.3 118.1 E1 1.50 1.75 59.0 68.8 e. 9 5 3 7 . 4 e1 1.9 74.8 L 0.35 0.55 13.7 21.6 SOT23-5L MECHANICAL DATA
7 Revision History
Feb. 2003 1 First Release Aug. 2005 2 PP AP references inserted in the datasheet see T able : Order Codes on page 2. 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 p ublication 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 STMicr oelectronics. 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 - Ital y - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America