This document introduces the Maxim Integrated Products.
This manual describes the Maxim MX7672 12‑bit high‑speed analog‑to‑digital converter. It outlines the device’s pin‑selectable input ranges, external -5 V reference requirement, and its compatibility as a plug‑in replacement for the AD7672.
The document includes detailed electrical characteristics, timing diagrams, layout recommendations, and procedures for configuring the reference, grounding, and sample‑and‑hold interfaces to achieve accurate conversions.
| Resolution | 12 bits |
|---|---|
| Conversion Time (MX7672_03) | 3 µs |
| Conversion Time (MX7672_05) | 5 µs |
| Conversion Time (MX7672_10) | 10 µs |
| Power Consumption | 110 mW |
| Supply Voltages | +5 V (Vop) and –12 V (Vss) |
| Analog Input Range | 0‑5 V, 0‑10 V, or ±5 V (pin‑selectable) |
| Reference Input Range | -5.1 V to -4.9 V |
| Reference Input Current | +3 µA |
The MX7672 requires an external –5 V reference voltage.
Conversion times are 3 µs for the MX7672_03 version, 5 µs for MX7672_05, and 10 µs for MX7672_10.
The device consumes about 110 mW of power.
It operates with a +5 V positive supply (Vop) and a –12 V negative supply (Vss).