CPC02

High Voltage Comparator
HV Input, LV Output

 

Functional Description

CPC02 is a static comparator without hysteresis. It uses GAP-MOS transistors and isolated low voltage NMOS Transistors, therefore it can be used in floating systems. The comparator has a PMOS high voltage input stage and a low voltage floating output stage.

The comparator has a power-down mode to permit very low standby currents. This mode is controlled by the complementary signals "PD" and "XPD". PD = High (VDDA) and XPD = Low (VSSA) -> OUT = High (VDDA).

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Key Features

  • Floating Supply Voltages
  • Analog Ground: VSSA = 0...20V
  • HV Power Supply: VDDH = 5...20V
  • LV Power Supply: VDDA-VSSA = 5V
  • HV Input: VSSA...(VDDH-2V)
  • LV Output: VSSA...VDDA
  • Power down mode
  • External biasing


    • Height: 125 µm
    Width: 260 µm
    Area: 32 500 µm²

Pin List

PinDescriptionCapacitance
INP Non inverting input 0.5pF
INN Inverting input 0.5pF
PD Power down 0.05pF
XPD Power down not 0.05pF
OUT Analog output -
IBP Bias Source Input -
VDDA LV Power Supply -
VDDH HV Power Supply -
VSSA Negative Power Supply -
Substrate Not Connected to VSSA -

 

Electrical Parameters

Conditions:
  • Negative Power Supply connected to Substrate: VSSA = 0V
  • High Voltage 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  126 128 135 dB 
Common Mode Rejection Ratio  CMRR 91 92 93 dB
Power Supply Rejection Ratio Vdd PSRRvdd 76 77 79 dB
Power Supply Rejection Ratio Vss PSRRvss 77 78 81 dB
DC Parameters   
Input Offset Voltage  Vos -7   7 mV
Power Supply Current  Idd 10.1 15.0 23.6 µA
Power Consumption  PVdd 45.6 75.0 129.9 µW
Output Source Current Isource 0.51 0.71 1.00 mA
Output Sink Current Isink 0.37 0.56 0.91 mA
Common Mode Input Range CMIR(L)   0   V
VDDA - CMIR(H) 1.54 1.78 1.94 V
Output Range (Rl = 10.0 MOhm) Vout(L)   0   V
VDDA - Vout(H)   0   V
Transient Parameters   
Response Time step=+100mV; overdrive=+10mV tdrise 0.19 0.23 0.26 µs
Response Time step=-100mV; overdrive=-10mV tdfall 0.33 0.43 0.54 µs
Startup Time  Tstart  22.3 23.8 43.7 ns
Noise Parameters   
Equivalent Input Noise @10Hz  EN(10Hz) - 1.26 - µV/sqrt(Hz)
Equivalent Input Noise @100KHz  EN(100Hz) - 45.1 - nV/sqrt(Hz)

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