Maxim Integrated MAX14662ETI+, 8-circuit SPST-NO analog switch, 1 Ohm max on-resistance, 400 MHz -3 dB bandwidth, 1.6 V to 5.5 V single supply, 28-TQFN (4x4 mm) exposed pad, -40°C to +85°C operation, ROHS3 compliant.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Voltage - supply, single (V+) | 1.6V ~ 5.5V |
| Current - leakage (IS(off)) | 50nA |
| Operating temperature | -40°C ~ 85°C (TA) |
| -3db bandwidth | 400MHz |
| Package | Tube |
| Crosstalk | -80dB @ 1MHz |
| Case | 28-WFQFN Exposed Pad |
| Switch circuit | SPST - NO |
| Number of circuits | 8 |
| On-State resistance | 1Ohm |
| Switch time (Ton, toff) | 35µs (Max), 5.5µs (Typ) |
| Multiplexer (Demultiplexer circuit) | 1:1 |
| Channel-to-Channel matching (ΔRon) | 20mOhm |
Given the 28-TQFN package, the top marking is laser-etched — the font, spacing, and alignment are consistent across Maxim's production plants. When verifying incoming stock, check that the date-code laser etch matches the week code format Maxim uses (YYWW). Any sanding, re-marking, or inconsistent logo placement is a red flag.
The maximum on-resistance is 1 Ohm per channel, with channel-to-channel matching of 20 mOhm typical. This is the key spec for signal-path accuracy in precision analog switching.
Yes, the MAX14662ETI+ (tube) and MAX14662ETI+T (tape-and-reel) are the same die in the same 28-TQFN package. The only difference is the shipping medium. Both are electrically identical and footprint-compatible.
Crosstalk is -80 dB at 1 MHz, which provides better than 0.01% isolation between channels at that frequency — sufficient for most 16-bit ADC multiplexing and audio routing applications.