This datasheet details the LTC1657 and LTC1657L, 16-bit parallel rail-to-rail voltage output digital-to-analog converters with onboard references.
The LTC1657 and LTC1657L are complete single supply, rail-to-rail voltage output, 16-bit digital-to-analog converters (DAC) in a 28-pin SSOP package. They feature a rail-to-rail output buffer amplifier, an internal reference, and a double buffered parallel digital interface. The devices include separate reference input pins that can be driven by an external reference, allowing the full-scale output to be 1 or 2 times the reference voltage depending on the X1/X2 pin connection.
| Resolution | 16 Bits |
|---|---|
| Supply Voltage (LTC1657) | 4.5V to 5.5V |
| Supply Voltage (LTC1657L) | 2.7V to 5.5V |
| Supply Current (Typical) | 650µA |
| Settling Time (16-Bit) | 20µs |
| Built-In Reference (LTC1657) | 2.048V |
| Built-In Reference (LTC1657L) | 1.25V |
| Package Type | 28-Lead Plastic SSOP |
The LTC1657 operates from a 4.5V to 5.5V supply.
The LTC1657L operates from a 2.7V to 5.5V supply.
The typical supply current is 650µA.
Yes, the LTC1657 has a 2.048V reference and the LTC1657L has a 1.25V reference.