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Analog IP components and specifications in Sky130A for Efabless next-generation Caravel
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Analog components specified for Chipalooza challenge (see additional sheets)
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IP blockRank CriticalityRequired for ML SoCURL of Chipalooza challenge submission(s)Rank Starting PointCommunity AvailabilityEfabless AvailabilityDevelopment
State		NotesURL of existing repo (not necessarily to spec)
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Ultra low-power comparator2✔https://github.com/JYSquare2/sky130_icrg_ip__ulpcomp
https://github.com/3x10e8/sky130_rhythmic_ip__dynamic_comparator
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Comparator2✔https://github.com/Create5517/sky130_pmcm_ip_cmp.git
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1.8V Precision bandgap3✔https://github.com/adankvitschal/sky130_ak_ip__cmos_vref
trim, temp compensation
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Low-power 1.8V LDO3✔https://github.com/dcdc10893/sky130_deser_ip_lowpowerLDO
https://github.com/AlexMenu/sky130_am_ip__ldo_01v8
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Current reference bias generator2✔https://github.com/tatzelbrumm/sky130_cm_ip__biasgen✔https://github.com/simonwaid/caravel_tia
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16-bit capacitive DAC1✔✔AC operation
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12-bit resistive DAC2✔DC operation
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8-bit Rheostat3✔
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12-bit IDAC3✔
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16-bit SAR ADC 1MSPS1✔https://github.com/Purdue-IEEE-SMC/sky130_si_ip__saradc_16bit
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Bandgap-referenced Power-on-Reset
3✔https://github.com/ajcci/sky130_ajc_ip__por
https://github.com/openicdesign/sky130_ef_ip__bgrref_por.git		Bandgap reference type
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Instrumentation amplifier4✔https://github.com/caonamshynd20122000/sky130_hcmus_ip__instramp
https://github.com/argunda/sky130_gunda_ip__instramp		see: TI INA333Differential input
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High Gain Operational amplifier4✔https://github.com/tdextrous/sky130_td_ip__opamp_hp
https://github.com/thehung3030/HG_OpAmp_Project_Chipalooza
https://github.com/ThaoCaoChau/sky130_bkic3_ip__hgopamp		see: PSOC4 OPAMPHigh-power mode 10mA
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Low Power Operational amplifier4✔
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Over-voltage detector3✔https://github.com/ajcci/sky130_ajc_ip__overvoltage
https://github.com/LDFranck/sky130_vbl_ip__overvoltage
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Brown-out detector3✔https://github.com/ajcci/sky130_ajc_ip__brownout
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Temperature sensor4✔https://github.com/ordicker/sky130_od_ip__tempsensor
https://github.com/JorgeMarinN/sky130_ac3e_ip__temp_sdc		✔
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Low-speed XO1✔https://github.com/b-etz/sky130_be_ip__lsxo✔f = 32.768kHzhttps://github.com/RTimothyEdwards/sky130_ef_ip__xtal_osc_32k
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High-speed XO1✔https://github.com/htfab/hsxo-cpz1✔f = 4 to 18 MHzhttps://github.com/RTimothyEdwards/sky130_ef_ip__xtal_osc_16M
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Programmable PLL5https://github.com/Azeem-Abbas/Sky130_AA_ip__Programmable_PLL
https://github.com/huydo272/PLL_PBKIC
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Programmable Sallen-Key filter5see: Silego/Dialog GreenPak
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Analog components not specified for Chipalooza challenge
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Under-voltage detector3
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Bandgap3✔https://github.com/johnkustin/caravel_user_project_analog
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FracN divider4
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12-bit SAR ADC 1MSPS2
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16-bit sigma-delta ADC3✔
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10-bit SAR ADC3✔https://github.com/UAH-IC-Design-Team/sky130-10-bit-SAR-ADC
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Low-speed R-C oscillator4
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High-speed ring oscillator4current-starved
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LVDS driver/receiver5
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LVPECL driver/receiver6
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HCSL driver/receiver7
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Fixed 1.2V LDO3
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Programmable LDO5
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High-Impedance input amplifier4microphone preampsee: TI LMV1091Differential input
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High-impedance input amplifier4electret preampsee: TI LMV1012Single-ended input
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Instrumentation amplifier3✔see: PSOC4 OPAMPDifferential input8-, 12-bit operation, rich feature set, GBW=4MHz/500kHz
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Programmable gain amplifier3✔
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True Random Number Generator3✔https://gitlab.com/um-ece/ftl-lab/bemosc/mpw5-analog-chaotic-trng
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Flash or fuse array6
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Analog components previously designed
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Power-on-reset2✔https://github.com/efabless/caravel✔R-C delay typeredefine start-up time
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Medium speed ring oscillator4✔https://github.com/RTimothyEdwards/sky130_ef_ip__rc_osc_500k✔current-starved
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