4- and 8-Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters
The LTC1594L and LTC1598L are 3 V micropower, 12‑bit analog‑to‑digital converters with integrated multiplexers (4‑channel for LTC1594L, 8‑channel for LTC1598L). They draw only 160 µA typical supply current during conversion and automatically shut down to 1 nA between conversions, making them suitable for battery‑operated and remote‑data‑acquisition systems.
The document lists detailed electrical characteristics, absolute maximum ratings, pin assignments, package dimensions, and typical performance graphs. It also includes recommended operating conditions, typical applications such as pen‑screen digitizing and battery monitoring, and a list of related Linear Technology parts.
| Resolution | 12 bits |
|---|---|
| Typical Supply Current | 160 µA |
| Auto‑Shutdown Current | 1 nA |
| Operating Voltage Range | 2.7 V to 3.6 V |
| Sampling Rate | 10.5 ksps |
| Maximum Clock Frequency | 200 kHz |
| Number of Multiplexer Channels | 4 (LTC1594L) / 8 (LTC1598L) |
| Package (LTC1594L) | 16‑lead plastic narrow SO |
| Package (LTC1598L) | 24‑lead plastic SSOP |
The typical supply current is 160 µA.
The LTC1598L provides an 8‑channel multiplexer.
The LTC1594L is supplied in a 16‑lead plastic small‑outline (narrow) package.