GS8552高精度低温漂运放， GS8092高速运放，性能可媲美欧美系列。性价比高到你想象不到。-G

文件名称: GS8552高精度低温漂运放， GS8092高速运放，性能可媲美欧美系列。性价比高到你想象不到。-GS8552.pdf

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详细说明：GS8552高精度低温漂运放， GS8092高速运放，性能可媲美欧美系列。性价比高到你想象不到。-GS8552.pdfGS8551152 Electrical characteristics (s=+5V, VcM=+2.5V,Vo=+2.5V, TA=+25C, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS INPUT CHARACTERISTICS Input Offset Voltage(vos) 5 Input Bias Current(lB) 20 A Input Offset Current (los) 10 A Common-Mode Rejection Ratio Vcm=oV to 5V 110 dB (CMRR) Large Signal Voltage Gain( Avo R1=10kΩ,V。=03to4.7V 145 dB nput Offset Vo| Itage Drift(△Vos/△r) 50 nV/℃C OUTPUT CHARACTERISTICS RL =100kQ to-Vs 4.998 Output Voltage High(VOH RL= 10kQ to-Vs 4994 Ri=100kQ to+ V 2 Output Voltage LOw(VoL) RL =10kn to+ Vs 5 mv Short Circuit Limit (lsc RL =1002 to-Vs 43 mA Output Current (lo) 30 mA POWER SUPPLY Power Supply Rejection Ratio(PSRR) Vs=2.5V to 5.5V 115 dB Quiescent Current (IQ Vo=0V,R=09 320 A DYNAMIC PERFORMANCE Gain-Bandwidth Product(GBP) G=+100 MHZ Slew Rate(SR) RI=10kQ 084 V/Hs Overload Recovery Time 0.10 ms NOISE PERFORMANCE Voltage Noise(en p-p) OHz to 10Hz 0.81 Voltage Noise density(e f= 1kHz 49 Www.gains.com。 AO 3/12 GS8551152 Typical Performance characteristics Large Signal Transient Response at+5V Large Signal Transient Response at +2.5V CL=300pF CL=300PF RL=2kQ RL=2kQ AV=+1 5>Eooo AV=+1 四9 o罚> Time(4 us/div) Time(2us/div) Small Signal transient response at +5V mall Signal Transient Response at +2. 5V CL=50pF CL-5OpF RL=∞ A=+1 >Eo9O >EoDo Time(4μs/div) Time(4us/div) Closed Loop Gain vs Frequency at +5V Closed Loop Gain vs Frequency at +2.5V G=-100 G=100 巴5a 20 G=-10 G=-10 G=+1 G=+1 -10 -2 10c 1000 Frequency(kHz) Frequency(k Www.gains.com。 AO 4/12 GS8551152 Typical Performance characteristics Open Loop Gain, Phase Shift Open Loop Gain, Phase Shift VS. Frequency at +5V vS Frequency at +2.5V 100 1C0 中万 3 10 20 100 003 10000 Frequency(Hz) Frequency(Hz) Positive Overvoltage Recovery Negative Overvoltage Recovery Vsy=⊥25V VIN=-200mVp-p VOUT (RET to GND) VOuT CL=OpF RL=10KQ VsY=±25V Av=-100 VIN=-200mVp-p (RET to GND) CL=OpF RL=10kQ Av=-100 200my 200mV VIN Time(4usdin Time(40us/div) 0.1Hz to 10hz Noise at +5v 0. 1Hz to 10hz noise at +2.5v G=10000 G=10000 Ww/a w/wwdw Time(10s/div) Time(10s/div Www.gains.com。 AO 5/12 GS8551152 Application Note Size GS855X series op amps are unity-gain stable and suitable for a wide range of general-purpose applications the small footprints of the Gs855X series packages save space on printed circuit boards and enable the design of smaller electronic products Power Supply Bypassing and Board Layout GS855X series operates from a single 2. 1V to 5. 5V supply or dual +1.05V to +2.75V supplies For best performance, a01uF ceramic capacitor should be placed close to the VoD pin in single supply operation For dual supply operation, both VoD and vss supplies should be bypassed to ground with separate 0. 1 uF ceramic capacitors Low Supply Current The low supply current (typical 320uA per channel) of GS855X series will help to maximize battery life. They are ideal for battery powered systems Operating Voltage GS855X series operate under wide input supply voltage (2. 1V to 5.5V. In addition, all temperature specifications apply from -40C to +125C. Most behavior remains unchanged throughout the full operating voltage range. These guarantees ensure operation throughout the single Li-lon battery lifetime Rail-to-Rail Input The input common-mode range of Gs855X series extends 100mV beyond the supply rails (vss-0 1V to VDo+o 1V). This is achieved by using complementary input stage For normal operation, inputs should be limited to this range Rail-to-Rail output Rail-to-Rail output swing provides maximum possible dynamic range at the output. This is particularly important when operating in low supply voltages. The output voltage of Gs855X series can typically swing to less than 5mv from supply rail in tht resistive loads(100kn), and 60mv of supply rail in moderate resistive loads(10kQ Capacitive Load Tolerance The Gs855x family is optimized for bandwidth and speed, not for driving capacitive loads. Output capacitance will create a pole in the amplifier's feedback path, leading to excessive peaking and potential oscillation. If dealing with load capacitance is a requirement of the application, the two strategies to consider are(1)using a small resistor in series with the amplifier's output and the load capacitance and (2)reducing the bandwidth of the amplifier's feedback loop by increasing the overall noise gain Figure 2 shows a unity gain follower using the series resistor strategy. The resistor isolates the output from the capacitance and, more importantly, creates a zero in the feedback path that compensates for the pole created by the output capacitance OUT Figure 2. Indirectly Driving a Capacitive Load Using Isolation Resistor The bigger the Riso resistor value, the more stable VOut will be. However, if there is a resistive load Rl in parallel with the capacitive load, a voltage divider(proportional to Riso/RL)is formed, this will result in a gain error The circuit in Figure 3 is an improvement to the one in Figure 2. RF provides the dc accuracy by feed-forward the vin to RL. Cr Www.gains.com。 AO 6/12 E== GS8551152 and Riso serve to counteract the loss of phase margin by feeding the high frequency component of the output signal back to the amplifier's inverting input, thereby preserving the phase margin in the overall feedback loop Capacitive drive can be increased by increasing the value of CF. This in turn will slow down the pulse response Vou 工 Figure 3. Indirectly Driving a Capacitive Load with DC Accuracy Www.gains.com。 AO 7/12 GS8551152 Typical Application Circuits Differential amplifier The differential amplifier allows the subtraction of two input voltages or cancellation of a signal common the two inputs. It is useful as a computational amplifier in making a differential to single-end conversion or in rejecting a common mode signal. Figure 4 shown the differential amplifier using GS855X R R QUT Ra REF Figure 4. Differential Amplifier R+R2、R4 R+R2、R OUT R+RARL 乃+R丿RˇREF If the resistor ratios are equal (. e. R1=R3 and R2=R4), then R oUr=R(-Vn)+ⅤREF Low Pass Active filter The low pass active filter is shown in Figure 5. the dc gain is defined by -R2/Rl. the filter has a-20dB/decade roll-off after its corner frequency fc=1/(2TR3C1) R1 R Figure 5. Low Pass Active Filter Www.gains.com。 AO 8/12 E== GS8551152 Instrumentation Amplifier The triple GS855X can be used to build a three-op-amp instrumentation amplifier as shown in Figure 6. the amplifier in Figure 6 is a high input impedance differential amplifier with gain of R2/R,. The two differential voltage followers assure the high the amplifier. Ry R Figure 6. Instrument Amplifier Www.gains.com。 AO 9/12 GS8551152 Package Information SOP-B Dimensions Dimensions Symbol In Millimeters In nches MIN MAX MAX 1.35 0C3 A1 .1u 25 0.004 01 A2 1.35 L.L52 口61 510 0. 170 .250 1 4了 5.10 0.1e5 0200 3,g L.15 日.157 229 口244 127日sc 400 1270 18 50 Www.gains.com。 AO 10/12

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