The MAX038 is a high-frequency, precision function generator producing accurate, high-frequency triangle, sawtooth, sine, square, and pulse waveforms with a minimum of external components.
The MAX038 high‑frequency waveform generator produces precise triangle, sawtooth, sine, square and pulse waveforms from 0.1 Hz up to 20 MHz. Output amplitude is 2 Vp‑p with a low‑impedance buffer capable of driving up to 20 mA, and the duty cycle can be varied between 15 % and 85 %.
The device includes TTL‑compatible select pins, a SYNC output for external synchronization, and a 2.5 V band‑gap reference. It is supplied by a 4.75‑5.25 V rail and features a low output resistance (0.2 Ω) and 200 ppm/°C temperature drift. Maxim advises that this part is not recommended for new designs and suggests using a replacement or second‑source part.
| Operating Frequency Range | 0.1 Hz – 20 MHz |
|---|---|
| Output Amplitude | 2 Vp‑p |
| Maximum Output Current | 20 mA |
| Duty‑Cycle Range | 15 % – 85 % |
| Temperature Drift | 200 ppm/°C |
| Supply Voltage (V+) | 4.75 V – 5.25 V |
No, Maxim states the part is not recommended for new designs.
The device operates from a positive supply voltage of 4.75 V to 5.25 V.
All waveforms have a 2 Vp‑p output amplitude centered around ground.
The duty cycle is adjustable from 15 % to 85 % via the DADJ pin.