AS1504
Octal, 8-bit, High Accuracy, Low Power, DAC with Shutdown and Mid-Scale Reset Pin
Description
The AS1504/AS1505 are low-power (5μA @ 5V) individually programmable 8-channel, 8-bit resolution digital-to-analog converters. All eight DACs share a common reference-voltage input making them ideal for applications where adjustments start at a nominal voltage.
| Model |
Funktionality |
| AS1504 |
Mid-Scale Reset Pin |
| AS1505 |
Seperate VREFL Range Settings |
The devices feature a low-power shutdown reference input current (5μA) that enables the devices to maintain individual DAC latch settings during shutdown until normal operation is resumed.
The devices are controlled via a standard 3-wire serial interface. Data is shifted into the DACs via the internal serial-to-parallel shift register.
The AS1504/AS1505 are available in a 16-pin SOIC-150 package.
Key Features
- 8 Individually-Controlled DACs
- Replaces 8 Potentiometers
- Standard 3-Wire Serial Interface
- Single-Supply Operation: +3 to +5V
- Mid-Scale Reset Pin (AS1504)
- Separate VREFL Range Setting (AS1505)
- Shutdown Mode: ≤25μW (IDD and IREF)
- Power-On Reset
- 16-pin SOIC-150 Package
Applications
The devices are ideal for video amplifier gain control, video equipment voltage-controlled frequencies and bandwidths, CRT display geometric corrections and automatic adjustments, or any other space-limited DAC application with low power-consumption requirements.
