ASIC Artefacts

14.09.2025, 22:49:32

LDO OP

OpAmp used in LDO.

ldoota


🔗 Schematics

Show Tool Versions...

xschem: 3.4.6
ngspice: 44.2
magic: 8.3.541
netgen: 1.5.293
ihpopenpdk: dev


SPECIFICATIONS

AC Open-Loop Specification

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Open-Loop Gain 60 / 95.963 96.608 / 100 dB 17/100.0%/0.0%/0.0% Gain at 1Hz
Phase Margin 45 / 54.636 69.684 / 180 deg 17/100.0%/0.0%/0.0% Open-Loop
Unity-Gain Bandwidth 5.0 / 9.799 13.066 / 15.0 MHz 17/100.0%/0.0%/0.0%
3-dB Bandwidth 0.1 / 0.159 0.219 / 10.0 kHz 17/100.0%/0.0%/0.0%

AC Open-Loop Specification (Monte Carlo)

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Open-Loop Gain 60 / 96.073 96.491 / 100 dB 200/100.0%/0.0%/0.0% Gain at 1Hz
Phase Margin 45 / 59.081 67.284 / 180 deg 200/100.0%/0.0%/0.0% Open-Loop
Unity-Gain Bandwidth 5.0 / 10.427 13.064 / 15.0 MHz 200/100.0%/0.0%/0.0%
3-dB Bandwidth 0.1 / 0.171 0.205 / 10.0 kHz 200/100.0%/0.0%/0.0%

CMRR/PSRR Specification

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
CMRR at 10Hz 50 / 78.057 78.692 / 150 dB 17/100.0%/0.0%/0.0%
CMRR at 10MHz 30 / 48.041 49.759 / 60 dB 17/100.0%/0.0%/0.0%
PSRR+ at 10Hz 40 / 52.344 52.781 / 130 dB 17/100.0%/0.0%/0.0%
PSRR+ at 10MHz -10 / -0.512 2.089 / 10 dB 17/100.0%/0.0%/0.0%
PSRR- at 10Hz 30 / 52.866 53.291 / 60 dB 17/100.0%/0.0%/0.0%
PSRR- at 10MHz 20 / 27.968 29.271 / 40 dB 17/100.0%/0.0%/0.0%

CMRR/PSRR Specification (Monte Carlo)

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
CMRR at 10Hz 50 / 75.105 82.282 / 150 dB 200/100.0%/0.0%/0.0%
CMRR at 10MHz 30 / 47.226 50.249 / 60 dB 200/100.0%/0.0%/0.0%
PSRR+ at 10Hz 40 / 52.359 52.829 / 130 dB 200/100.0%/0.0%/0.0%
PSRR+ at 10MHz -10 / 0.129 1.599 / 10 dB 200/100.0%/0.0%/0.0%
PSRR- at 10Hz 30 / 52.836 53.388 / 60 dB 200/100.0%/0.0%/0.0%
PSRR- at 10MHz 20 / 28.054 29.66 / 40 dB 200/100.0%/0.0%/0.0%

Output Range Specification

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Negative Output Bound -3 / -1.611 -1.595 / -1.5 V 17/100.0%/0.0%/0.0%
Positive Output Bound 1.5 / 1.648 1.649 / 3 V 17/100.0%/0.0%/0.0%

Output Range Specification (Monte Carlo)

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Negative Output Bound -3 / -1.605 -1.601 / -1.5 V 200/100.0%/0.0%/0.0%
Positive Output Bound 1.5 / 1.649 1.649 / 3 V 200/100.0%/0.0%/0.0%

Input Range Specification

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Negative CM Input Bound -3 / -0.918 -0.82 / 0 V 17/100.0%/0.0%/0.0% Input transistor sat.

Input Range Specification (Monte Carlo)

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Negative CM Input Bound -3 / -0.907 -0.833 / 0 V 200/100.0%/0.0%/0.0% Input transistor sat.

Slew-Rate/Offset Specification

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Input Offset -35.0 / 29.518 31.754 / 35.0 mV 17/100.0%/0.0%/0.0%
Slew-Rate (Positive) 4.0 / 10.872 14.257 / 15.0 MV/s 17/100.0%/0.0%/0.0%
Slew-Rate (Negative) -10.0 / -5.399 -4.506 / -2.0 MV/s 17/100.0%/0.0%/0.0%

Slew-Rate/Offset Specification (Monte Carlo)

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Input Offset -35.0 / 30.127 34.795 / 35.0 mV 200/100.0%/0.0%/0.0%
Slew-Rate (Positive) 4.0 / 11.865 13.018 / 15.0 MV/s 200/100.0%/0.0%/0.0%
Slew-Rate (Negative) -10.0 / -5.019 -4.743 / -2.0 MV/s 200/100.0%/0.0%/0.0%

Noise Specification

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Input Noise at 10Hz 0.0 / 1.155 1.246 / 10.0 uV/sqrt(Hz) 17/100.0%/0.0%/0.0%
Input Noise at 10MHz 0.0 / 0.038 0.04 / 1.0 uV/sqrt(Hz) 17/100.0%/0.0%/0.0%

AC Open-Loop Specification [PEX]

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Open-Loop Gain 60 / 95.928 96.605 / 100 dB 17/100.0%/0.0%/0.0% Gain at 1Hz
Phase Margin 45 / 47.953 62.87 / 180 deg 17/100.0%/0.0%/0.0% Open-Loop
Unity-Gain Bandwidth 5.0 / 9.488 12.418 / 15.0 MHz 17/100.0%/0.0%/0.0%
3-dB Bandwidth 0.1 / 0.159 0.22 / 10.0 kHz 17/100.0%/0.0%/0.0%

AC Open-Loop Specification (Monte Carlo) [PEX]

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Open-Loop Gain 60 / 96.126 96.473 / 100 dB 200/100.0%/0.0%/0.0% Gain at 1Hz
Phase Margin 45 / 52.049 59.687 / 180 deg 200/100.0%/0.0%/0.0% Open-Loop
Unity-Gain Bandwidth 5.0 / 10.148 11.615 / 15.0 MHz 200/100.0%/0.0%/0.0%
3-dB Bandwidth 0.1 / 0.173 0.202 / 10.0 kHz 200/100.0%/0.0%/0.0%

CMRR/PSRR Specification [PEX]

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
CMRR at 10Hz 50 / 77.335 80.117 / 150 dB 17/100.0%/0.0%/0.0%
CMRR at 10MHz 30 / 47.306 48.363 / 60 dB 17/100.0%/0.0%/0.0%
PSRR+ at 10Hz 40 / 52.326 52.774 / 130 dB 17/100.0%/0.0%/0.0%
PSRR+ at 10MHz -10 / -1.251 1.268 / 10 dB 17/100.0%/0.0%/0.0%
PSRR- at 10Hz 30 / 52.841 53.29 / 60 dB 17/100.0%/0.0%/0.0%
PSRR- at 10MHz 20 / 21.096 22.424 / 40 dB 17/100.0%/0.0%/0.0%

CMRR/PSRR Specification (Monte Carlo) [PEX]

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
CMRR at 10Hz 50 / 75.481 80.589 / 150 dB 200/100.0%/0.0%/0.0%
CMRR at 10MHz 30 / 47.17 48.521 / 60 dB 200/100.0%/0.0%/0.0%
PSRR+ at 10Hz 40 / 52.472 52.643 / 130 dB 200/100.0%/0.0%/0.0%
PSRR+ at 10MHz -10 / -0.545 0.484 / 10 dB 200/100.0%/0.0%/0.0%
PSRR- at 10Hz 30 / 52.919 53.33 / 60 dB 200/100.0%/0.0%/0.0%
PSRR- at 10MHz 20 / 21.233 22.316 / 40 dB 200/100.0%/0.0%/0.0%

Slew-Rate/Offset Specification [PEX]

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Input Offset -35.0 / 29.586 31.828 / 35.0 mV 17/100.0%/0.0%/0.0%
Slew-Rate (Positive) 4.0 / 10.919 14.257 / 15.0 MV/s 17/100.0%/0.0%/0.0%
Slew-Rate (Negative) -10.0 / -5.119 -4.305 / -2.0 MV/s 17/100.0%/0.0%/0.0%

Slew-Rate/Offset Specification (Monte Carlo) [PEX]

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Input Offset -35.0 / 29.817 32.533 / 35.0 mV 200/100.0%/0.0%/0.0%
Slew-Rate (Positive) 4.0 / 11.869 12.581 / 15.0 MV/s 200/100.0%/0.0%/0.0%
Slew-Rate (Negative) -10.0 / -4.749 -4.562 / -2.0 MV/s 200/100.0%/0.0%/0.0%

Noise Specification [PEX]

Parameter Min (Spec. / Sim.) Max (Sim. / Spec.) Unit Checks (total/pass/fail/NaN) Comment
Input Noise at 10Hz 0.0 / 1.154 1.248 / 10.0 uV/sqrt(Hz) 17/100.0%/0.0%/0.0%
Input Noise at 10MHz 0.0 / 0.038 0.04 / 1.0 uV/sqrt(Hz) 17/100.0%/0.0%/0.0%

PERFORMANCE CHARACTERISTICS

AC Open-Loop Performance

xyplot_9fbf465e1cd50ff0ceb3bb93e5b4ad9f_816ff0236db4df04972a797227555f2b

AC Open-Loop Performance (Monte Carlo)

histplot_olgain_1hzgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__9a5db47ab9aba3bb4e26aa89c1792547
histplot_pmgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__9a5db47ab9aba3bb4e26aa89c1792547
histplot_ugbwgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__9a5db47ab9aba3bb4e26aa89c1792547
histplot_f2_3dbgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__9a5db47ab9aba3bb4e26aa89c1792547

CMRR/PSRR Performance

xyplot_554f7af1c79e022e6ac160aa33945991_b6fcfbe05e1e91ad86a1427f99b15b86
xyplot_bf090b3923eb1c25979b1380e5a5ff52_b6fcfbe05e1e91ad86a1427f99b15b86
xyplot_ef13ea9bad0850d8c971054af703c48b_b6fcfbe05e1e91ad86a1427f99b15b86

CMRR/PSRR Performance (Monte Carlo)

histplot_cmrr_10hzgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__92a075e5ac40469fba2aee58b2723854
histplot_cmrr_10mhzgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__92a075e5ac40469fba2aee58b2723854
histplot_psrr_p_10hzgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__92a075e5ac40469fba2aee58b2723854
histplot_psrr_p_10mhzgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__92a075e5ac40469fba2aee58b2723854
histplot_psrr_n_10hzgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__92a075e5ac40469fba2aee58b2723854
histplot_psrr_n_10mhzgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__92a075e5ac40469fba2aee58b2723854

Output Range Performance (Monte Carlo)

histplot_neg_out_compgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__b39434883180237cad8ff66e469b8ae4
histplot_pos_out_compgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__b39434883180237cad8ff66e469b8ae4

Input Range Performance (Monte Carlo)

histplot_neg_cm_boundgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__c3ef339970d360a980e264425d85bd59

Slew-Rate/Offset Performance

xyplot_27fc9e85d3c5cf099162da97a7670c50_7fe75fd01aea916d0d134a5fda736f64
xyplot_547bb1b70572724eb683c52c3d04bb4f_7fe75fd01aea916d0d134a5fda736f64

Slew-Rate/Offset Performance (Monte Carlo)

histplot_inp_offsetgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__22ab7f64ab47c9c34d8c7b572f5ab958
histplot_slew_posgroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__22ab7f64ab47c9c34d8c7b572f5ab958
histplot_slew_neggroup_('tt_typ_stat_mc',-2),('tt_typ_mismatch_mc',_-2)__22ab7f64ab47c9c34d8c7b572f5ab958

Noise Performance

xyplot_2c5e78f326baac07c5dcce9693e9d98b_5704b26b347cd187b5844f1ec04fca87