TSH11 STMICROELECTRONICS | Alldatasheet

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Technical content

■ VERY LOW INPUT CURRENT : 2pA typ ■ GAIN BANDWIDTH PRODUCT : 120MHz ■ UNITY GAIN STABLE ■ SLEW RATE : 150V/µs ■ STANDARD PIN OUT

DESCRIPTION

The TSH11 is a low cost wide bandwidth single operational amplifier featuring extremely low input current of 2pA typ. Other features as unity gain stability, fast settling time and high linearity make it suitable for many applications requiring speed and very high input impedance as photo cell am- plifier, high input impedance buffer, Fet probe, high speed precision integrator, sample and hold circuit. ORDER CODE D = Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (top view) Part Number Temperature Range Package D TSH11I -40°C, +125°C • D SO8 (Plastic Micropackage) 7Inverting Input Non-inverting Input Output Offset Null 2Offset Null 1 N.C. VCC VCC TSH11 120MHz BANDWIDTH MOS INPUT SINGLE OPERATIONAL AMPLIFIER October 2000

INPUT OFFSET VOLTAGE NULL CIRCUIT MAXIMUM RATINGS OPERATING CONDITIONS non inverting input inverting input 1 8 Offset N1 Offset N2

7 VCC+

Symbol Parameter Value Unit VCC Supply Voltage ±7 V Vid Differential Input Voltage ±5 V Vi Input Voltage ±5 V Iin Current On Offset Null Pins ±20 V Toper Operating Free-Air Temperature range -40 to +125 °C Symbol Parameter Value Unit VCC Supply Voltage ±3 to ±6 V Vic Common Mode Input Voltage Range VCC - to VCC + -3 V

ELECTRICAL CHARACTERISTICS

VCC = ±5V, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit Vio Input Offset Voltage 3 15 mV DV io Input Offset Voltage Drift Tmin. ≤ Tamb ≤ Tmax. 20 µV/°C Iib Input Bias Current. 2 300 pA Iio Input Offset Current. 2 200 pA ICC Supply Current, no load V CC = ±5V 20 40 mA Avd Large Signal Voltage Gain Vo = ±2.5V R L = 100Ω 200 800 V/V Vicm Input Common Mode Voltage Range -5 to +2 -5.5 to +2.5 V CMR Common-mode Rejection Ratio Vic = Vicm min. 55 95 dB SVR Supply Voltage Rejection Ratio VCC = ±5V to ±3V 45 70 dB Vo Output Voltage R L = 100Ω ±2.5 +3.5 -3.7 V Io Output Short Circuit Current Vid = ±1V, Vo = 0V ±70 mA GBP Gain Bandwidth Product AVCL = 100, RL = 100Ω , f = 7.5MHz 120 MHz SR Slew Rate Vin = ±2V, AVCL = 1, RL = 100Ω 150 V/µs en Equivalent Input Voltage Noise f = 1MHz 20 nV/ √Hz φm Phase Margin A VM = 1, RL = 100Ω , CL = 15pF 40 Degrees

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 by- passed to ground with a 10nF ceramic ca- pacitor very close to the device and a 10µF tantalum capacitor. ❑ To provide low inductance and low resist- ance common return, use a ground plane or common point return for power and sig- nal. ❑ All leads must be wide and as short as pos- sible especially for op amp inputs. This is in order to decrease parasitic capacitance and inductance. ❑ Use small resistor values to decrease time constant with parasitic capacitance. ❑ Choose component sizes as small as pos- sible (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 re- sistor a few pF ceramic capacitor C F adjust- ed to optimize the settling time. Input 50/C87 1k/C87 10nF 10/C109F C F -5V +5V 10nF Output 50/C87 10/C109F 1k/C87

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 © 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://www.st.com PACKAGE MECHANICAL DATA

8 PINS - PLASTIC MICROPACKAGE (SO)

Dim. Millimeters Inches A 1.75 0.069 a1 0.1 0.25 0.004 0.010 a2 1.65 0.065 a3 0.65 0.85 0.026 0.033 b 0.35 0.48 0.014 0.019 b1 0.19 0.25 0.007 0.010 C 0.25 0.5 0.010 0.020 c1 45° (typ.) D 4.8 5.0 0.189 0.197 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 3.81 0.150 F 3.8 4.0 0.150 0.157 L 0.4 1.27 0.016 0.050 M 0.6 0.024 S 8° (max.)