OPC03

Operational Amplifier
LV Input, HV Output

 

Functional Description

OPC03 is an internally compensated operational amplifier with a PMOS input stage and external biasing. This cell has a high voltage input stage and a low voltage output stage.

This operational amplifier can only be used for small capacitive loads. (Cload < 1pF)

It has a powerdown mode to permit very low standby currents. This mode is controlled by the complementary signals "PD"; "XPD" (VSSA ... VDDA) and "XPD_HV" (VSSA ... VDDH).
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Key Features

  • LV Power Supply: VDDA = 5V
  • HV Power Supply: VDDH = 5...20V
  • LV Input Range: 0...(VDDA-1,5V)
  • HV Output Range: 0...(VDDH-2V)
  • For small capacitive loads: Cload <1pF
  • Power down mode
  • Compensated
  • External biasing


    • Height: 150 µm
    Width: 250 µm
    Area: 37500 µm²

Pin List

PinDescriptionCapacitance
INP Non Inverting Input 0.5pF
INN Inverting Input 0.5pF
PD LV Power Down 0.05pF
XPD LV Power Down Not 0.05pF
XPD_HV HV Power Down Not 0.05pF
OUT Analog Output -
IBP Bias Source Input -
VDDA LV Power Supply -
VDDH HV Power Supply -
VSSA Analog Ground -
Substrate Connected to VSSA -

 

 

Electrical Parameters

Conditions:
  • HV Power Supply: VDDH = 20V
  • Bias Source Current IBP=5µA -Typical

 

Parameter Symbol Min Typ Max Unit
Power Supply Range  Vdda 4.50 5.00 5.50 V
High Voltage Supply Range Vddh 5   20 V
Temperature Range  Temp  -40 25 85 deg 
AC Parameters   
Open Loop Gain  A0  107 111 114 dB 
Unity Gain Bandwidth (0.10 pF / 10.0 MOhm)
Phase Margin		 BW 4.48 6.56 8.66 MHz
Øm 41.8 45.7 48.0 deg
Unity Gain Bandwidth (1.00 pF / 1.00 GOhm)
Phase Margin		 BW 4.15 6.11 8.07 MHz
Øm 28.1 31.4 33.4 deg
Common Mode Rejection Ratio  CMRR 77 80 83 dB
Power Supply Rejection Ratio Vdd PSRRvdd 101 105 107 dB
Power Supply Rejection Ratio Vss PSRRvss 78 81 83 dB
Output Resistance (closed loop) Rout 16.9 23.0 40.1 Ohm
DC Parameters   
Input Offset Voltage  Vos -6   +6 mV
Power Supply Current  Idd 16.8 24.8 33.9 µA
Power Consumption  PVdd 0.08 0.12 0.19 mW
Output Source Current Isource 9.6 13.9 18.9 µA
Output Sink Current Isink 1.57 2.54 3.41 mA
Common Mode Input Range CMIR(L) 0.22 0.26 0.29 V
Vdda - CMIR(H) 1.20 1.38 1.54 V
Output Range (Rl = 10.0 MOhm) Vout(L) 20.4 25.9 30.0 mV
Vdda - Vout(H) 0.87 1.12 1.30 V
Transient Parameters   
Slew Rate - Rise SRP 3.22 4.32 5.48 V/µs
Slew Rate - Fall SRN 5.19 7.86 10.29 V/µs
Settling Time - Rise  TSP  0.59 0.78 1.35 µs
Settling Time - Fall  TSN  0.57 0.75 1.23 µs
Startup Time  Tstart  0.86 1.12 1.67 µs
Total Harmonic Distortion  THD  - 57 - 57 - 62 dB
Noise Parameters   
Equivalent Input Noise @10Hz  EN(10Hz) - 1.94 - µV/sqrt(Hz)
Equivalent Input Noise @100KHz  EN(100Hz) - 31.9 - nV/sqrt(Hz)
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