LTC2688 Series

16-Channel, 12-/16-Bit Voltage Output SoftSpan DAC

Catalog

16-Channel, 12-/16-Bit Voltage Output SoftSpan DAC

Part	INL/DNL (LSB)	Number of Bits	Data Interface	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of D/A Converters	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Supplier Device Package	Package / Case	Architecture	Output Type	Settling Time	Reference Type	INL/DNL (LSB)
Analog Devices LTC2688HUJ-16#TRPBF	±1 ±3LSB	16	SPI	5.25 V	4.75 V	Surface Mount	125 °C	-40 °C	16 D/A Converters	5.55 V	1.71 V	40-QFN (6x6)	40-WFQFN Exposed Pad	Multiplying DAC	Voltage - Buffered	28 µs	External Internal
Analog Devices LTC2688CUJ-12#PBF		16	SPI	5.25 V	4.75 V	Surface Mount	70 °C	0 °C	16 D/A Converters	5.55 V	1.71 V	40-QFN (6x6)	40-WFQFN Exposed Pad	Multiplying DAC	Voltage - Buffered	28 µs	External Internal	1 LSB 3 LSB
Analog Devices LTC2688IUJ-16#PBF	±1 ±3LSB	16	SPI	5.25 V	4.75 V	Surface Mount	85 °C	-40 °C	16 D/A Converters	5.55 V	1.71 V	40-QFN (6x6)	40-WFQFN Exposed Pad	Multiplying DAC	Voltage - Buffered	28 µs	External Internal
Analog Devices LTC2688HUJ-12#TRPBF		16	SPI	5.25 V	4.75 V	Surface Mount	125 °C	-40 °C	16 D/A Converters	5.55 V	1.71 V	40-QFN (6x6)	40-WFQFN Exposed Pad	Multiplying DAC	Voltage - Buffered	28 µs	External Internal	1 LSB 3 LSB
Analog Devices LTC2688HUJ-16#PBF	±1 ±3LSB	16	SPI	5.25 V	4.75 V	Surface Mount	125 °C	-40 °C	16 D/A Converters	5.55 V	1.71 V	40-QFN (6x6)	40-WFQFN Exposed Pad	Multiplying DAC	Voltage - Buffered	28 µs	External Internal
Analog Devices LTC2688IUJ-12#TRPBF		16	SPI	5.25 V	4.75 V	Surface Mount	85 °C	-40 °C	16 D/A Converters	5.55 V	1.71 V	40-QFN (6x6)	40-WFQFN Exposed Pad	Multiplying DAC	Voltage - Buffered	28 µs	External Internal	1 LSB 3 LSB
Analog Devices LTC2688IUJ-16#TRPBF	±1 ±3LSB	16	SPI	5.25 V	4.75 V	Surface Mount	85 °C	-40 °C	16 D/A Converters	5.55 V	1.71 V	40-QFN (6x6)	40-WFQFN Exposed Pad	Multiplying DAC	Voltage - Buffered	28 µs	External Internal

Catalog

16-Channel, 12-/16-Bit Voltage Output SoftSpan DAC

Key Features

• 16 independent SoftSpan DACs

• Independently programmable output ranges: 0 V to 5 V, 0 V to

• 10 V, ±5 V, ±10 V, ±15 V

• Full 12-/16-bit resolution at all ranges

• Flexible single- or dual-supply operation

• Maximum INL error: ±3 LSB16, ±0.75 LSB12

• Precision 4.096 V reference, ±5 ppm/°C maximum

• A/B toggle or sinusoidal dither using up to 3 toggle pins

• Multiplexer for output voltage and load current sense

• Outputs drive ±20 mA guaranteed

• 6 mm × 6 mm, 40-lead LFCSP and 4.5 mm × 4.5 mm, 64-ball WLCSP

Description

The LTC2688 is a 16-channel,12-/16-bit, ±15 V digital-to-analog converter (DAC) with an integrated precision reference. The LTC2688 is guaranteed monotonic and has built in rail-to-rail output buffers that can source or sink up to 20 mA. This SoftSpan™DAC offers five output ranges up to ±15 V. The range of each channel is independently programmable.The internal 4.096 V precision reference sets the accuracy of the output voltage. An external reference can be used for additional range options. Three toggle pins support Input Register A and Input Register B toggle or sinusoidal dither at multiple frequencies. An analog multiplexer simplifies measurement of pin voltages, load currents, and junction temperature.Programmable offset and gain registers improve the accuracy of the DAC outputs.The serial peripheral interface (SPI) and MICROWIRE™-compatible, 3-wire serial interface operates on logic levels as low as 1.71 V and clock rates up to 50 MHz.APPLICATIONSOptical networkingInstrumentationData acquisitionAutomatic test equipmentProcess control and industrial automation