LTC2668IUJ-12#PBF

The LTC2668 is a family of 16-channel, 16/12-bit, ±10V DACs with an integrated precision reference. These devices are guaranteed monotonic and feature built-in rail-to-rail output buffers. These SoftSpan DACs offer five output ranges up to ±10V. Each channel's range can be independently programmed, or the device can be hardware-configured for operation within a fixed range. The internal 2.5V reference is individually buffered to each channel; an external reference can be used to provide additional range options. In addition, the LTC2668 features A/B toggle capability via a dedicated pin or a software toggle command. The SPI/Microwire-compatible 3-wire serial interface operates at logic levels as low as 1.71V, with a maximum clock rate of 50MHz.

Applications

• Optical networking
• Instrumentation
• Data acquisition
• Automatic test equipment
• Process control and industrial automation

Key features

• Precision voltage reference: 10ppm/°C (maximum)
• Independently programmable output ranges: 0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V
• 16/12-bit full resolution across all ranges
• Maximum INL error: ±4LSB (16-bit)
• A/B inversion via software or dedicated pin
• 16:1 analog multiplexer
• Guaranteed monotonic operation over full temperature range
• Internal or external voltage reference
• Guaranteed output drive ±10mA
• 1.8V to 5V SPI serial interface
• 6mm × 6mm 40-pin QFN package