ECV321 E-CMOS | Alldatasheet
Document overview
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Technical content
Features
- Single-Supply Operation from +1.8V ~ +5.5V
- Rail-to-Rail Input / Output
- Gain-Bandwidth Product: 1MHz (Typ.)
- Low Input Bias Current: 10pA (Typ.)
- Low Offset Voltage: 5mV (Max.)
- Quiescent Current: 55 µA per Amplifier (Typ.)
- Operating Temperature: -40° C ~ +125° C
- Available in SOT23-5L and SOP-8L Packages
Applications
- Portable Equipment ● Mobile Communications
- Smoke Detector ● Sensor Interface
- Medical Instrumentation
- Battery-Powered Instruments
- Handheld Test Equipment Pin Assignments
Figure 1. Pin Assignment Diagram (SOT23-5L and SOP-8L Package)
1MHz, 1.8V, CMOS, Rail-to-Rail Operational Amplifier EC V321
Ordering Information
Part Number Package Marking Marking Information ECV321NNB2R SOT23-5L Y V321 W “-“：Tracking code ECV321NNM1R SOP-8L ECV321 LLLLL YYWWT 1. LLLLL ：Last five Number of Lot No 2. YY ：Year Code 3. WW ：Week Code 4. T：Internal Tracking Code
Application Information
ECV321 series op amps are unity-gain stable and suitable for a wide range of general-purpose applications. The small footprints of the ECV321 series packages save space on printed circuit boards and enable the design of smaller electronic products. Power Supply Bypassing and Board Layout 0.1 µF ceramic capacitor should be placed close to the VDD pin in single supply operation. For dual supply operation, both V DD and V SS supplies should be bypassed to ground with separate 0.1 µFceramic capacitors. Low Supply Current The low supply current (typical 55 µA) of ECV321 series will help to maximize battery life. They are ideal for battery powered Systems EC V321 NN XX X B2 ：： ：：SOT23-5L M1：： ：：SOP-8L
guarantees ensure operation throughout the single Li-Ion battery lifetime. The input common-mode range of ECV321 series extends 100mV beyond the supply rails (V SS -0.1V to V DD +0.1V). This is achieved by using complementary input stage. For normal operation, inputs should be limited to this range. from supply rail in light resistive loads (>100k Ω), and 60mV of supply rail in moderate resistive loads (10k Ω). drive can be improved by inserting an isolation resistor R ISO in series with the capacitive load, as shown in Figure 2. Figure 2. Indirectly Driving a Capacitive Load Using Isolation Resistor with the capacitive load, a voltage divider (proportional to R ISO /R L) is formed, this will result in a gain error. 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 C F. This in turn will slow down the pulse response .
off after its corner frequency ƒ C =1/(2 πR 3C 1). Figure 8. Low Pass Active Filter
1MHz, 1.8V, CMOS, Rail-to-Rail Operational Amplifier EC V321
Electrical Characteristics
Power Supply Voltage (V DD to Vss) -0.5V +7V Analog Input Voltage (IN+ or IN-) Vss-0.5V VDD +0.5V PDB Input Voltage Vss-0.5V +7V Operating Temperature Range -40 ° C +125 ° C Junction Temperature +150 ° C Storage Temperature Range -65 ° C +150 ° C Lead Temperature (soldering, 10sec) +300 ° C Package Thermal Resistance (T A=+25 ° C ) SOT23-5L, θJA 190 ° C SOP-8L, θJA 130 ° C Note: Stress greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions outside those indicated in the operational sections of this specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
1MHz, 1.8V, CMOS, Rail-to-Rail Operational Amplifier EC V321 (V DD = +5V, Vss = 0V, V CM = 0V, V OUT = V DD /2, R L=100K tied to V DD /2, SHDNB = V DD , T A = -40° C to +125° C, unless otherwise noted. Typical values are at T A =+25° C.) (Notes 1) Parameter Symbol Conditions Min. Typ. Max. Units Supply-Voltage Range VDD Guaranteed by the PSRR test 1.8 - 5.5 V Quiescent Supply Current (per Amplifier) IQ VDD = 5V - 55 80 µA Input Offset Voltage VOS - 0.5 ±5 mV Input Offset Voltage Tempco ∆VOS /∆T - 2 - µV/ ° C Input Bias Current IB (Note 2) - 10 - pA Input Offset Current IOS (Note 2) - 10 - pA Input Common-Mode Voltage Range VCM -0.1 - VDD +0.1 V VDD =5.5 Vss-0.1V ≦VCM ≦VDD +0.1V 60 75 - dB Common-Mode Rejection Ratio CMRR Vss ≦VCM ≦5V 65 80 - dB Power-Supply Rejection Ratio PSRR VDD = +1.8V to +5.5V 75 90 - dB VDD =5V, R L=100k Ω, 0.05V ≦VO ≦4.95V 90 100 - dB Open-Loop Voltage Gain AV VDD =5V, R L=5k Ω, 0.05V ≦VO ≦4.95V 65 75 - dB |V IN+ -VIN-|Њ10mV V DD -VOH - 6 - mV R L = 100k Ωto V DD /2 V OL -VSS - 6 - mV |V IN+ -VIN-|Њ10mV V DD -VOH - 60 - mV Output Voltage Swing VOUT R L = 5k Ωto V DD /2 V OL -VSS - 60 - mV Output Short-Circuit Current ISC Sinking or Sourcing - ±20 - mA Gain Bandwidth Product GBW AV = +1V/V - 1 - MHz Slew Rate SR AV = +1V/V - 0.6 - V/ µs Settling Time tS To 0.1%, V OUT = 2V step AV = +1V/V - 5 - µs Over Load Recovery Time VIN ×Gain=V S - 2 - µs ƒ = 1kHz - 50 - nV/ √Hz Input Voltage Noise Density en ƒ = 10kHz - 20 - nV/ √Hz Note 1: All devices are 100% production tested at T A = +25 ° C ; all specifications over the automotive temperature range is guaranteed by design, not production tested. Note 2: Parameter is guaranteed by design.
1MHz, 1.8V, CMOS, Rail-to-Rail Operational Amplifier EC V321 Typical characteristics At T A=+25° C, R L=100 k Ω connected to V S/2 and V OUT = V S/2, unless otherwise noted.
1MHz, 1.8V, CMOS, Rail-to-Rail Operational Amplifier EC V321 At T A=+25° C, R L=100 k Ω connected to V S/2 and V OUT = V S/2, unless otherwise noted.
1MHz, 1.8V, CMOS, Rail-to-Rail Operational Amplifier EC V321
Package Information
1MHz, 1.8V, CMOS, Rail-to-Rail Operational Amplifier EC V321 SOP-8L