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EF_LPOA

Efabless

COMING SOON

Low Power Operational Amplifier

Description

This IP is a general purpose low power operationa amplifier. It has a low power input stange and high current drive output. It was taped out on the CI2404 Efabless Chipalooza tapeout. The specifications below are target specifications. Check back for characterized numbers once the silicon is characterized.

Pinout

Pin name Use Domain Notes
avdd analog power 3.3-5.5V
dvdd digital power 1.8V
avss analog ground
dvss digital ground
ena enable dvdd domain
ibias bandgap-controlled current bias
iptat PTAT current bias from bandgap
vinn negative input
vinp positive input
vout output voltage

Specifications

Parameter Min Typical Max Unit Notes
Operating Temperature -40 25 85 °C
Load Resistance 5 kOhm
Load Capacitance 30 pF
Total Harmonic Distortion - 0.1 0.5 % At nominal output power
Signal-to-Noise Ratio 90 100 110 dB
Output Voltage Swing 100 avdd - 100 mV At 5 kOhms maximum load
Output Voltage Swing 10 avdd - 10 mV At 50 kOhms load
Power Consumption (Enabled) 1.8 mA At 5 kOhms maximum load
Power Consumption (No load) 300 uA
Power Consumption (Disabled) 1 10 nA
PSRR (Power Supply Rejection Ratio) 70 80 dB
CMRR (Common mode Rejection Ratio) 80
Gain Bandwidth Product 2.5 MHz
Open loop gain 100 dB
Phase margin 70 °
Wakeup time (ena transition 0 to 1) 600 ns
Common-mode input voltage 0 avdd Rail-to-rail operation
Equivalent Input Noise 30 nV/√Hz At 4kOhms maximum load, measured at 10kHz

Summary

Catalog ID

EF_LPOA

Provider

Vendor

Vendor

Efabless

Node

130nm

Foundry

Skywater

Category

Operational Amplifier

Licensing

Info

Open Source (Free)

Quality

Certification

EF Certified

Maturity

Integrated