OTA01

Operational Transconductance Amplifier
HV Input, HV Output

 

Functional Description

OTA01 is a transconductance operational amplifier with a HV-PMOS input stage and external biasing. The amplifier is designed for universal applications.

The OTA has a powerdown mode to permit very low standby currents. This mode is controlled by the complementary signals "PD_HV" ;"XPD_HV" (VSSA...VDDH) and PD (VSSA...VSSA+5V).

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Key Features

  • Floating Supply Voltages
  • Supply Voltage: VDDH-VSSA = 5...20V
  • Input Range: VSSA...VDDH-2
  • Power down mode
  • External biasing


    • Height: 180 µm
    Width: 260 µm
    Area: 47 000 µm²

Pin List

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

 

Electrical Parameters

Conditions:
  • VSSA=0V
  • Bias Sink Current IB=5µA - Typical
Parameter Symbol Min Typ Max Unit
Power Supply Range  Vdda 16.0 18.0 20.0 V
Temperature Range  Temp  -40 25 85 deg 
AC Parameters   
Open Loop Gain  A0  98 99 102 dB 
Unity Gain Bandwidth (1.00 pF / 1.00 GOhm)
Phase Margin		 BW 2.15 2.45 2.90 MHz
Øm 72.9 73.7 74.0 deg
Unity Gain Bandwidth (10.0 pF / 10.0 GOhm)
Phase Margin		 BW 0.26 0.30 0.35 MHz
Øm 87.6 87.7 87.8 deg
Common Mode Rejection Ratio  CMRR 96 97 99 dB
Power Supply Rejection Ratio Vdd PSRRvdd 100 101 103 dB
Power Supply Rejection Ratio Vss PSRRvss 104 105 107 dB
Output Resistance (closed loop) Rout 45.4 53.8 60.8 kOhm
DC Parameters   
Input Offset Voltage  Vos -7   7 mV
Power Supply Current  Idd 15.0 15.0 15.0 µA
Power Consumption  PVdd 0.24 0.27 0.30 mW
Output Source Current Isource 1.66 1.85 2.17 µA
Output Sink Current Isink 1.58 1.77 2.09 µA
Common Mode Input Range CMIR(L)   0   V
Vdda - CMIR(H) 1.40 1.65 1.88 V
Output Range (Rl = 1.00 GOhm) Vout(L) 40.4 60.0 79.3 mV
Vdda - Vout(H) 55.3 77.3 97.4 mV
Transient Parameters   
Slew Rate - Rise SRP 0.48 0.48 0.49 V/µs
Slew Rate - Fall SRN 0.46 0.47 0.47 V/µs
Settling Time - Rise  TSP  3.93 4.37 4.74 µs
Settling Time - Fall  TSN  3.90 4.34 4.71 µs
Startup Time  Tstart  17.9 20.1 21.9 µs
Total Harmonic Distortion  THD  - 51 - 52 - 53 dB
Noise Parameters   
Equivalent Input Noise @10Hz  EN(10Hz) - 2.11 - µV/sqrt(Hz)
Equivalent Input Noise @100KHz  EN(100Hz) - 98.5 - nV/sqrt(Hz)
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