Opamp: OPEA01

 

Key Features

  • Large Output Range 
  • Supply Voltage 5V ± 10%
  • Area 0.13mm² including Pad and Protection Structure 
  • Size x=339µm y=374µm 
  • Suitable For External Loads: 
    • Rload > 2kOhms, Cload < 1nF 
  • Low Noise 
  • Power-Down-Mode Ivdd < 1nA

Symbol

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Description

The OPEA01 cell is an internally compensated operational amplifier with a PMOS input stage. The amplifier is designed to drive offchip loads. 
The operational amplifier has a power-down mode to permit very low standby currents. This mode is controlled by the complementary signals "pd" and "xpd". 

Pin List

Pin Description Capacitance
inn inverting input 0.5pF
inp noninverting input 0.5pF
xpd power down not 0.05pF
pd power down 0.05pF
out analog output -
vdda positive analog power supply -
vssa negative analog power supply -
 

Electrical Parameters

Parameter Symbol Min Typ Max Unit
Power Supply Range  Vdda 4.50 5.00 5.50 V
Temperature Range  Temp  -40 25 125 deg 
AC Parameters   
Open Loop Gain  A0  102 105 108 dB 
Unity Gain Bandwidth (0.50 nF / 1.00 MOhm)
Phase Margin		 BW 0.66 1.53 3.60 MHz
Øm 48.2 63.6 69.1 deg
Unity Gain Bandwidth (1.00 nF / 1.00 MOhm)
Phase Margin		 BW 0.49 1.10 2.60 MHz
Øm 35.7 49.2 57.3 deg
Common Mode Rejection Ratio  CMRR 59 65 72 dB
Power Supply Rejection Ratio Vdd PSRRvdd 74 90 98 dB
Power Supply Rejection Ratio Vss PSRRvss 59 65 73 dB
Output Resistance (closed loop) Rout 0.16 0.28 0.58 Ohm
DC Parameters   
Input Offset Voltage  Vos -5   5 mV
Power Supply Current  Idd 0.10 0.48 1.31 mA
Power Consumption  PVdd 0.46 2.39 7.18 mW
Output Source Current Isource 2.35 4.88 11.66 mA
Output Sink Current Isink 8.5 20.3 39.3 mA
Common Mode Input Range CMIR(L) 0.30 0.43 0.79 V
Vdda - CMIR(H) 1.00 1.45 1.58 V
Output Range (Rl = 2.00 kOhm) Vout(L) 0.04 0.06 0.11 V
Vdda - Vout(H) 0.09 0.16 0.32 V
Transient Parameters   
Slew Rate - Rise SRP 0.71 2.09 6.02 V/µs
Slew Rate - Fall SRN 0.73 2.06 5.69 V/µs
Settling Time - Rise  TSP  0.88 1.90 6.44 µs
Settling Time - Fall  TSN  0.91 1.87 6.31 µs
Startup Time  Tstart  1.11 2.60 6.94 µs
Total Harmonic Distortion  THD  - 105 - 119 - 125 dB
Noise Parameters   
Equivalent Input Noise @10Hz  EN(10Hz) - 0.14 - µV/sqrt(Hz)
Equivalent Input Noise @100KHz  EN(100Hz) - 19.9 - nV/sqrt(Hz)
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