May 29, 2022

ITT Intermetall SAH181 - 30% of 70's multimeter : weekend die-shot

ITT Intermetall SAH181 comes from a time when you needed multiple chips to build 3/4-digit multimeter. It is a part of multimeter chipset: roughly, SAH161 receives comparator output and contains part of ADC logic, SAH171 is "memory" for storing digits to be displayed (there are different versions for 1000/2000/10'000/20'000 count multimeters) and finally SAH181 scans digits from memory (SAH171) and displays them using single external BCD->7 segment decoder.

Die size 1697x1439 µm.

May 22, 2022

Motorola MC1709CG - monolithic opamp : weekend die-shot

Motorola MC1709CG - monolithic opamp without frequency compensation.
Die size 1140x1015 µm.

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May 16, 2022

National LM301AH - general purpose opamp : weekend die-shot

Die size 1111x1111 µm. You can also see one from Motorola.

May 9, 2022

RCA CA3043 - FM receiver base : weekend die-shot

RCA CA3043 is a base for building FM receiver: 4-stage IF amplifier, limiter, AF preamplifier, audio driver.
Die size 1317x1284 µm.

May 8, 2022
April 8, 2022

RCA CA3094 - Operational Transconductance Amplifier : weekend die-shot

RCA CA3094BT is a 30Mhz Operational Transconductance Amplifier with 100mA output current capability or 10W peak load power. Datecode 827.
Die size 1358x1104 µm.

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January 8, 2022

RCA CD4000BE - CMOS standard logic : weekend die-shot

CD4000 contains 2x 3-input NOR gate + 1x inverter gate. Die size 1722x1394 µm. Datecode 749.