Supply current is 600 µA typical, which keeps the self-heating low and makes this reference suitable for battery-powered instruments where every microamp matters.
Noise is 3.8 µVp-p over 0.1 Hz to 10 Hz and 6.8 µVrms over 10 Hz to 10 kHz.

Maxim Integrated MAX873BESA+T series voltage reference, fixed 2.5V output, ±0.1% tolerance, 20ppm/°C drift, 4.5V to 18V input, 10mA output, 600µA supply, 8-SOIC, -40°C to +85°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Reference type | Series |
| Voltage - input | 4.5V ~ 18V |
| Voltage - output (Min (Fixed)) | 2.5V |
| Output current | 10 mA |
| Current - supply | 600µA |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±0.1% |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Noise - 0.1Hz to 10Hz | 3.8µVp-p |
| Noise - 10Hz to 10kHz | 6.8µVrms |
| Temperature coefficient | 20ppm/°C |
Supply current is 600 µA typical, which keeps the self-heating low and makes this reference suitable for battery-powered instruments where every microamp matters.
Noise is 3.8 µVp-p over 0.1 Hz to 10 Hz and 6.8 µVrms over 10 Hz to 10 kHz.
Yes, it is ROHS3 compliant.
The MAX873BCSA is the same die in an 8-SOIC package but in tube or bulk packaging rather than Tape & Reel. Electrically they are identical — the +T suffix only denotes the reeled shipping format. If your BOM calls for the tube variant, the +T version is a drop-in substitute as long as your assembly line accepts Tape & Reel.