G1201 GMT | Alldatasheet
Document overview
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Technical content
Features
Single-Supply Operation: 2.2 Volts to 6 Volts High Output Current: ±100mA Wide Bandwidth: 3.5 MHz Slew Rate: 6.2 V/µs No Phase Reversal Unity Gain Stable Rail-to-Rail Input and Output
Applications
Multimedia Audio LCD Driver ASIC Input or Output Amplifier Headphone Driver General Description The G1201 is dual rail-to-rail input and output sin- gle-supply amplifiers featuring 100mA output drive current. This high output current makes these amplifi- ers excellent for driving either resistive or capacitive loads. AC performance is very good with 3.5MHz bandwidth, 6.2V/µs-slew rate and low distortion. All are guaranteed to operate from a +3 volt single supply as well as a +5 volt supply. The very low input bias currents enable the G1201 to be used for integrators and diode amplification and other applications requiring low input bias current. Al- lowing low current applications to control high current loads. Applications include audio amplification for computers, sound ports, sound cards and set-top boxes. The G1201 is very stable and capable of driving heavy capacitive loads. The ability to swing rail-to-rail at the inputs and outputs enables designers to buffer CMOS ADC/DACs, ASICs or other wide output swing devices in single-supply systems.
Ordering Information
(Pb free) TEMP. RANGE PACKAGE G1201P1U G1201P1Uf -40°C to +85°C SOP-8 Note: P1: SOP-8 U: Tape & Reel Pin Configuration Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. OUT B OUT A 8 -IN A +IN A -IN B +IN B G1201 SOP-8 OUT B OUT A 8 -IN A +IN A -IN B +IN B G1201 SOP-8
Ver 1.2 Jul 24, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw G1201Global Mixed-mode Technology Inc. Absolute Maximum Ratings* Storage Temperature Range…………-65°C to +150°C Operating Temperature Range……..…-40°C to +85°C θ JA θJA is specified for the worst case conditions, θJA is specified for device soldered onto a circuit board for surface-mount packages. *Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; the functional operation of the device at these or any other conditions above those indicated in the operational sections of this specifica- tion is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. **For supplies less than +6V, the differential input voltage is equal to ±VS. Electrical Characteristics (VS = +3.0V, VCM = 1.5V, TA=+25°C unless otherwise noted) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Input Characteristics Offset Voltage V OS --- 5 15 mV Input Bias Current I B --- 50 250 pA Input Offset Current I OS --- 25 125 pA Input Voltage Range V CM 0 3 V Common-Mode Rejection Ratio CMRR V CM = 0V to 3V --- 60 --- dB Large Signal Voltage Gain A VO RL = 2kΩ VO = 0.5V to 2.5V --- 80 --- dB Output Characteristics Output Voltage High V OH I L = 10mA 2.85 2.91 --- V Output Voltage Low V OL I L = 10mA --- 60 100 mV Output Current I OUT --- ±100 --- mA Power Supply Power Supply Rejection Ratio PSRR f i= 1k Vripple(PEAK) = 1V --- 63 --- dB Supply Current/Amplifier I SY V O = 0V --- 1.5 2.5 mA Dynamic Performance Slew Rate SR RL = 2kΩ --- 2.8 --- V/µs Settling Time t s To 0.1% --- 2.5 --- µs Gain Bandwidth Product GBP --- 2.2 --- MHz Channel Separation CS f = 1kHz RL = 32Ω --- 70 --- dB Total Harmonic Distortion THD f = 1kHz AV = -1 RL=32Ω VO(P-)=2.45V --- 50 --- dB Note: Specifications subject to change without notice.
Ver 1.2 Jul 24, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw G1201Global Mixed-mode Technology Inc. Electrical Characteristics (VS = +5.0V, VCM = 2.5V, TA=+25°C unless otherwise noted) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Input Characteristics Offset Voltage V OS --- 5 15 mV Input Bias Current I B --- 50 500 pA Input Offset Current I OS --- 25 250 pA Input Voltage Range V CM 0 --- 5 V Common-Mode Rejection Ratio CMRR V CM = 0V to 5V 40 65 --- dB Large Signal Voltage Gain A VO RL = 2kΩ VO = 0.5V to 4.5V 70 90 --- dB Output Characteristics Output Voltage High V OH I L = 10mA 4.90 4.94 --- V Output Voltage Low V OL I L = 10mA --- 50 100 mV Output Current I OUT --- ±100 --- mA Power Supply Power Supply Rejection Ratio PSRR f i= 1kHz Vripple(PEAK) = 1V 50 66 --- dB Supply Current/Amplifier I SY V O = 0V --- 3.5 6 mA Dynamic Performance Slew Rate SR RL = 2kΩ --- 6.2 --- V/μs Full-Power Bandwidth BW p RL = 32Ω VO(P-P) = 4.2V THD = 50dB --- 30 --- kHz Settling Time t s To 0.1% --- 1.3 --- μs Gain Bandwidth Product GBP --- 3.5 --- MHz Channel Separation CS f = 1kHz, RL = 32Ω --- 70 --- dB Total Harmonic Distortion THD f = 1kHz, AV = -1 RL = 32Ω, VO(P-P) = 4.3V --- 50 --- dB Note: Specifications subject to change without notice. Caution ESD (electrostatic discharge) sensitive device. Elec- trostatic charges as high as 2000V readily accumulate on the human body and test equipment and can dis- charge without detection. Although the G1201 feature proprietary ESD protec- tion circuitry, permanent damage may occur on de- vices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recomm ended to avoid performance degradation or loss of functionality. The G1201 is an all-CMOS, high output current drive, rail-to-rail input/output operational amplifier. Its high output current drive and stability with heavy capacitive loads makes the G1201 an excellent choice as a drive amplifier. Short-Circuit Protection As a result of the design of the output stage for maxi- mum load current capability, the G1201 does not have any internal short-circuit protection circuitry. Direct connection of the G1201’s output to the positive sup- ply in single-supply applications will destroy the device. In those applications where some protection is needed, but not at the expense of reduced output voltage headroom, a low value resistor in series with the out- put, as shown in Figure 1, can be used. The resistor, connected within the feedback loop of the amplifier, will have very little effect on the performance of the amplifier other than limiting the maximum available output voltage swing. Figure 1. Output Short-Circuit Protection
G1201Global Mixed-mode Technology Inc. 10V, the external resistor should be (10V/ 5mA) = 2k Ω. noise from contaminating the audio signal. ensure that the 20Hz audio information is not blocked. the head-phones, which can range from 32 Ω to 600Ω. Figure 2. A Single-Supply, Stereo Headphone
Ver 1.2 Jul 24, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw G1201Global Mixed-mode Technology Inc. Input Common Mode Voltage Range Figure Test Condition：TA = 25°C, AV=1 V+ = 5V, V- = 0V, RL = 2K Ω V+ = 5V, V- = 0V, RL = 250 Ω V+ = 3V, V- = 0V, RL = 2K Ω V+ = 3V, V- = 0V, RL = 250 Ω
Ver 1.2 Jul 24, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw G1201Global Mixed-mode Technology Inc. Output Swing Range Voltage Figure Test Condition：TA=25°C, AV= -1
Ver 1.2 Jul 24, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw G1201Global Mixed-mode Technology Inc. Large Signal Transient Response Figure Test Condition：TA=25°C, AV=1 , RL = 2kΩ SR (rising) = 2.5V/408ns = 6.14V/µs SR (falling) = 2.5V/ 327ns = 7.65 V/µs SR (rising) = 1.5V/522ns = 2.87 V/µs SR (falling) = 1.5V/ 434ns = 3.45 V/µs Open-Loop Gain & Phase vs. Frequency -150 -130 -110 0.0 20.0 40.0 60.0 80.0 100.0 0.1 1 10 100 1000 10000 Frequency - kHZ Gain - dB -90 -70 -50 Phase - degree Test Condition: TA=25°C, V+ = 2.5V, V- = -2.5V Power Supply Ripple Rejection vs. Frequency 5.0 15.0 25.0 35.0 45.0 55.0 65.0 0.1 1 10 100 1000 Frequency - kHZ Power Supply Rejection - dB PSRR + PSRR - Test Condition: TA=25°C, V+ = 2.5V, V- = -2.5V
Ver 1.2 Jul 24, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw G1201Global Mixed-mode Technology Inc. Recommended Minimum Footprint SOP-8
Ver 1.2 Jul 24, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw G1201Global Mixed-mode Technology Inc.
Package Information
Note: 1. Package body sizes exclude mold flash and gate burrs 2. Dimension L is measured in gage plane 3. Tolerance 0.10mm unless otherwise specified 4. Controlling dimension is millimeter converted inch dimensions are not necessarily exact. Taping Specification PACKAGE Q’TY/REEL SOP-8 2,500 ea GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications. Feed Direction Typical SOP Package Orientation Feed Direction Typical SOP Package Orientation D E H 7 ° (4X) A2 A e B y C L θ D E H 7 ° (4X) A2 A e B y C L θ