UNISONIC TECHNOLOGIES CO., LTD OPA2336 Preliminary CMOS IC SINGLE-SUPPLY, MICROPOWER CMOS OPERATIONAL AMPLIFIERS DESCRIPTION The UTC OPA2336 is a CMOS operational amplifier. It is operated on a 2.1V (Min.) single supply. A100kΩ load is driven by the rail-to-rail output and the accuracy of the output voltage is ensured at ± 3mV. The UTC OPA2336 is characterized by its low quiescent current (20μA/amplifier), low offset voltage (125μV max), low input bias current (1pA), and high open-loop gain (115dB). The UTC OPA2336 features completely independent circuitry for lowest crosstalk and freedom from interaction. The UTC OPA2336 is particularly designed for battery-powered applications and the common-mode range extending to the negative supply makes it ideal for single-supply applications. In addition to the applications mentioned above, the UTC OPA2336 is suitable for portable devices, high-Impedance applications, photodiode, pre-amps, precision integrators, medical instruments, and test equipment. FEATURES * Operating on a Single-Supply * Rail-to-Rail Output (Accuracy: ± 3mv) * Low Power Dissipation: IQ=20μA/Amplifier * Low Offset Voltage up to 125μV (MAX.) * Power Supply Specified from 2.3V to 5.5V * Halogen Free ORDERING INFORMATION Ordering Number Package Packing OPA2336G-S08-R SOP-8 Tape Reel www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-392.a OPA2336 PIN CONFIGURATION 1 -In A 2 +In A 3 V- 4 A B + - Out A + CMOS IC Preliminary 8 V+ 7 Out B 6 -In B 5 +In B PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 PIN NAME OUTA -In A +In A V+In B -in B Out B V+ DESCRIPTION Output of channel A Negative Input of channel A Positive Input of channel A Ground Positive Input of channel B Negative Input of channel B Output of channel B Power supply UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-392.a OPA2336 CMOS IC Preliminary ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage VS 7.5 V Signal Input Terminals Voltage (Note 2) VIT (V-)-0.3~(V+)+0.3 V Signal Input Terminals Current (Note 2) IIT 10 mA Output Short-Circuit (Note 3) IOS Continuous A Operating Junction Temperature TOPR -40~ +125 °C Storage Temperature TSTG -55~ +125 °C Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. Input terminals are diode-clamped to the power supply rails. Input signals that can swing more than 0.3V beyond the supply rails should be current-limited to 10mA or less. 3. Short-circuit to ground, one amplifier per package. THERMAL DATA PARAMETER Junction to Ambient SYMBOL RATINGS UNIT θJA 150 °C/W ELECTRICAL CHARACTERISTICS (At TA=+25°C, VS=+5V,RL=25kΩ connected to VS/2, unless otherwise specified.) PARAMETER OFFSET VOLTAGE Input Offset Voltage Input Offset Voltage vs. Temperature Input Offset Voltage vs. Power Supply Over Temperature Channel Separation, DC INPUT BIAS CURRENT Input Bias Current Over Temperature Input Offset Current NOISE Input Voltage Noise, f = 0.1 ~ 10Hz Input Voltage Noise Density, f = 1kHz Current Noise Density, f = 1kHz INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Ratio Over Temperature INPUT IMPEDANCE Differential Common-Mode SYMBOL VI(OFF) dVOS/dT PSRR TEST CONDITIONS MIN VS = 2.3V ~ 5.5V VS = 2.3V ~ 5.5V TYP MAX UNIT ±60 ±1.5 25 ±125 µV µV/°C µV/V µV/V µV/V 100 130 0.1 IBIAS ±1 IO(OFF) ±1 eN iN 3 40 30 VCM CMRR -0.2V<VCM<(V+)-1V -0.2V<VCM<(V+)-1V -0.2 80 76 CM ±10 ±60 ±10 pA pA pA µVP-P nV/√Hz fA/√Hz 90 (V+)-1 V dB dB 1013||2 1013||4 Ω||pF Ω||pF 115 dB OPEN-LOOP GAIN Open-Loop Voltage Gain AOL Over Temperature Open-Loop Voltage Gain AOL Over Temperature UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw RL=25kΩ, 100mV<VOUT<(V+)-100mV 100 RL=25kΩ, 100mV<VOUT<(V+)-100mV 100 RL=5kΩ, 500mV<VOUT <(V+)-500mV 90 RL=5kΩ, 500mV<VOUT <(V+)-500mV 90 dB 106 dB dB 3 of 6 QW-R502-392.a OPA2336 Preliminary CMOS IC ELECTRICAL CHARACTERISTICS(Cont.) FREQUENCY RESPONSE Gain-Bandwidth Product GBW VS=5V, G=1 100 kHZ Slew Rate SR VS=5V, G=1 0.03 V/µs VIN · G = VS Overload Recovery Time 100 µs OUTPUT Voltage Output Swing from Rail (Note 2) VOS RL=100kΩ, AOL≥70dB 3 mV Voltage Output Swing from Rail (Note 2) RL=25kΩ, AOL≥90dB 20 100 mV Over Temperature RL=25kΩ, AOL≥90dB 100 mV Voltage Output Swing from Rail (Note 2) RL=5kΩ, AOL≥90dB 70 500 mV Over Temperature RL=5kΩ, AOL≥90dB 500 mV Short-Circuit Current ISC ±5 mA Capacitive Load Drive CLOAD pF POWER SUPPLY Specified Voltage Range VS 2.3 5.5 V Minimum Operating Voltage 2.1 V Quiescent Current (Per Amplifier) IQ IOUT=0 20 32 µA Over Temperature IOUT=0 36 µA TEMPERATURE RANGE Specified Range -40 +85 °C Operating Range -55 +125 °C Storage Range -55 +125 °C Note: 1. VS= +5V. 2. Output voltage swings are measured between the output and positive and negative power-supply rails. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R502-392.a OPA2336 CMOS IC Preliminary APPLICATION INFORMATION The UTC OPA2336 is a CMOS operational amplifier, its outstanding features and functions make it suitable for several applications. The UTC OPA2336 is unity-gain stable and can be protected under the reverse battery voltages conditions. 0.01μF ceramic capacitors are required to bypass the power supply. OPERATING VOLTAGE The UTC OPA2336 is operating on a single supply ranging from 2.1V to +5.5V, most behavior remains unchanged throughout the full operating voltage range. The UTC OPA2336 is fully specified for operation from +2.3V to +5.5V; a single limit applies over the supply range. Moreover, this device performs well over a temperature range of -40°C to +85°C. INPUT VOLTAGE The UTC OPA2336 allows input common-mode range varies from (V-)-0.2V to (V+)-1V, normal behaviors should operate within this range. In addition, the absolute maximum input voltage is 300mV beyond the supplies. Thus, inputs greater than the input common-mode range but less than maximum input voltage, while not valid, will not cause any damage to the op-amp. Normally, input bias current is approximately 1pA. However, the input pin may be applied to an excess inrush current, which is encountered when input voltages are higher than the power supplies. This device is not damaged unless the current on the input pins is less than 10mA. This is easily accomplished with an input resistor, as shown in Figure 1. +5V Ioverlaod 10mA max VIN 5kΩ OPA2336 VOUT + Figure 1. Input Current Protection for Voltages Exceeding the Supply Voltage CAPACITIVE LOAD AND STABILITY The UTC OPA2336 under certain conditions may become unstable. For device’s stability, there are many factors considered besides the amplifier gain, load value and so on. The UTC OPA2336 can drive a wide range of capacitive loads, it can drive approximately 10,000pF when properly configured. An op amp in unity-gain configuration is the most vulnerable to capacitive load. The capacitive load reacts with the op amp’s output resistance, along with any additional load resistance, to create a pole in the response which degrades the phase margin. In unity gain, 300pF capacitive load is to be optimal for the UTC OPA2336. Increasing gain enhances the amplifier’s ability to drive loads beyond this level. In order to improve capability of driving capacitive load in the unity-gain configuration, a 50Ω to 100Ω resistor is expected to locate inside the feedback loop, as shown in Figure 2. This reduces ringing with large capacitive loads while maintaining DC accuracy. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-392.a OPA2336 CMOS IC Preliminary APPLICATION INFORMATION (Cont.) OPA2336 VIN RS 100Ω VOUT + CL RL Figure 2. Series Resistor in Unity-Gain Configuration Improves Capacitive Load Drive The resistor can be also located in series with the output outside of the feedback loop, if paralleling a resistive load to the capacitive load, a voltage divider is generated with it. This introduces a Direct Current (DC) error at the output, however, this error may be insignificant. For instance, with RL= 100kΩand RS= 100Ω, there is only about a 0.1% error at the output. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R502-392.a