TSH10 140MHz BANDWIDTH LOW NOISE SINGLE OPERATIONAL AMPLIFIER ■ ■ ■ ■ ■ LOW NOISE : 6nV/√Hz GAIN BANDWIDTH PRODUCT : 140MHz UNITY GAIN STABLE SLEW RATE : 150V/µs STANDARD PIN OUT DESCRIPTION The TSH10 is a low cost wide bandwidth single operational amplifier featuring low input noise of 6nV/√Hz. Other features as unity gain stability, fast settling time and high linearity make it suitable for any application requiring speed and precision as high resolution video or DAC buffer. D SO8 (Plastic Micropackage) ORDER CODE Package Part Number PIN CONNECTIONS (top view) Temperature Range D TSH10I -40°C, +125°C • D = Small Outline Package (SO) - also available in Tape & Reel (DT) Offse t Null 1 1 8 Offs et Null2 Inverting Input 2 7 VC C+ Non-inverting Input 3 6 Output 4 5 N.C . VC C October 2000 1/5 TSH10 SCHEMATIC DIAGRAM 7 VCC + non inve rting inp ut Inte rn a l Vre f 3 6 o u tpu t 2 Cc inve rting inp ut 1 Offse t N1 8 Offse t N2 4 VCC - INPUT OFFSET VOLTAGE NULL CIRCUIT TS H10 N2 N1 1 00kΩ V CC MAXIMUM RATINGS Symbol Parameter Value Unit VCC Supply Voltage ±7 V Vid Differential Input Voltage ±5 V Vi Input Voltage ±5 V Iin Current On Inputs Current On Offset Null Pins ±50 ±20 V Toper Operating Free-Air Temperature range -40 to +125 °C Tstg Storage Temperature Range -65 to +150 °C Value Unit ±3 to ±6 V V CC- +2 to VCC+ -1 V OPERATING CONDITIONS Symbol 2/5 Parameter VCC Supply Voltage Vic Common Mode Input Voltage Range TSH10 ELECTRICAL CHARACTERISTICS VCC = ±5V, Tamb = 25°C (unless otherwise specified) Symbol Typ. Max. Unit Input Offset Voltage 1 10 mV Input Offset Voltage Drift T min. ≤ Tamb ≤ Tmax. 20 Iib Input Bias Current . 5 Vio DVio Parameter Min. Iio Input Offset Current . ICC Supply Current, no load VCC = ±5V Avd Large Signal Voltage Gain Vo = ±2.5V RL = 100Ω Vicm Input Common Mode Voltage Range CMR SVR Vo Io GBP µV/°C µA 30 0.1 10 µA 20 40 mA V/V 200 800 -3 to +4 -3.5 to +4.5 Common-mode Rejection Ratio V ic = Vicm min. 55 100 Supply Voltage Rejection Ratio V CC = ±5V to ±3V 45 70 ±2.5 +3.5 -3.7 V ±70 mA Output Voltage RL = 100Ω Output Short Circuit Current Vid = ±1V, Vo = 0V Gain Bandwidth Product A VCL = 100, RL = 100Ω, f = 7.5MHz SR Slew Rate V in = ±2V, AVCL = 1, RL = 100Ω en Equivalent Input Voltage Noise φm Phase Margin A VM = 1, RL = 100Ω, C L = 15pF 140 150 f = 1MHz 6 40 V V dB MHz V/µs nV/ √Hz Degrees 3/5 TSH10 EVALUATION CIRCUIT +5V 10 µF 50Ω 10n F Input 50 Ω Output 1kΩ 10nF -5V 10m F 1kΩ C F PRINTED CIRCUIT LAYOUT As for any high frequency device, a few rules must be observed when designing the PCB to get the best performances from this high speed op amp. From the most to the least important points : ❑ Each power supply lead has to be bypassed to ground with a 10nF ceramic capacitor very close to the device and a 10µF tantalum capacitor. ❑ To provide low inductance and low resistance common return, use a ground plane or common point return for power and signal. ❑ All leads must be wide and as short as possible especially for op amp inputs. This is in order to decrease parasitic capacitance and inductance. 4/5 ❑ Use small resistor values to decrease time constant with parasitic capacitance. Be aware on TSH10 device of the Iio error and input noise currents with high feedback resistor values. ❑ Choose component sizes as small as possible (SMD). ❑ On output, decrease capacitor load so as to avoid circuit stability being degraded which may cause oscillation. You can also add a serial resistor in order to minimise its influence. ❑ One can add in parallel with feedback resistor a few pF ceramic capacitor CF adjusted to optimize the settling time. TSH10 PACKAGE MECHANICAL DATA 8 PINS - PLASTIC MICROPACKAGE (SO) Millimeters Inches Dim. Min. A a1 a2 a3 b b1 C c1 D E e e3 F L M S Typ. Max. 0.65 0.35 0.19 0.25 1.75 0.25 1.65 0.85 0.48 0.25 0.5 4.8 5.8 5.0 6.2 0.1 Min. Typ. Max. 0.026 0.014 0.007 0.010 0.069 0.010 0.065 0.033 0.019 0.010 0.020 0.189 0.228 0.197 0.244 0.004 45° (typ.) 1.27 3.81 3.8 0.4 0.050 0.150 4.0 1.27 0.150 0.016 0.6 0.157 0.050 0.024 8° (max.) Information furni shed is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibili ty for the consequences of use of such information nor for any infring ement of patents or other right s 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 mention ed in this publ ication are subject to change without notice. This public ation supersedes and replaces all information previously suppl ied. STMicroelectronics products are not authorized for use as critical components in life suppo rt devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics 2000 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom http://w ww.st.com 5/5