LTC of 12 bit, 10 bit and 8-bit DAC series of Linear Technology Corporation ® 2636, which integrates a precise benchmark in the slim 4mm x 3mm DFN package and MSOP package, making them the smallest 8-channel DAC on the market today. The small size and internal benchmark of ltc2636 are necessary for a variety of industrial and communication applications. Optical network is an application example that requires multiple DACs in a single compact package. These DACs are ideal for driving optical attenuators or setting current values for laser diodes. By integrating a 10ppm / OC benchmark, ltc2636 provides a solution to further reduce the occupied space for optical network circuit boards with limited area.
The ltc2636 offers a wide range of options for ordering applications. In addition to choosing one of the three resolution options, designers can also choose between 2.5V or 4.096V full-scale range, making ltc2636 very suitable for 3V or 5V systems. The internal reference is connected to the outside, which provides a convenient method to drive the reference input for other data converters in the system. Alternatively, if higher accuracy or a non-standard voltage range is required, an external reference can be used. The ordering option provides the option to power up the DAC on a zero scale or an intermediate scale, providing flexibility for designs that cannot be forced to ground when powered up for the first time.
Designers can choose between 14 pin 4mm x 3mm DFN package and msop-16 package. Msop-16 package includes a hardware load DAC (LDAC) pin and a clear pin that asynchronously forces DAC output to its respective reset state. These DACs are well suited for automotive applications such as millimeter wave radar. In addition to the industrial (- 40 ° C to + 85 ° C) and commercial (0 ° C to + 70 ° C) temperature ranges, both DAC specifications are guaranteed in the automotive temperature range (- 40 ° C to + 125 ° C).
Ltc2636 provides excellent 12 bit DC performance, with integral nonlinear error of ± 2.5lsb (maximum) and offset error of only ± 5mv, making it very suitable for open-loop and closed-loop systems. The AC performance of the device is also excellent because the ltc2636 provides crosstalk of 2.4nv · s, so as to ensure that the voltage change on one DAC has minimal impact on other DACs. The ltc2636 operates with a single power supply of 2.7V to 5.5V, and the power supply current of each DAC is very low 100ua.
Ltc2636 8-channel DAC belongs to the same series as the previously launched ltc2630 and ltc2640 single channel DAC. These devices are part of a complete 8-Channel, 4-channel, dual channel and single channel 12 bit / 10 bit / 8-bit DAC series with internal benchmarks in a slim package.
Photo Description: 12 bit / 10 bit / 8-bit 8-channel DAC including internal reference
Performance summary: ltc2636
·Integrated precision benchmark
– 2.5V 10ppm/oC （LTC2636-L）
– 4.096V 10ppm/oC （LTC2636-H）
·Maximum 12 bit inl error: ± 2.5lsb
·Pin and software compatible SPI DAC
·Monotonicity is guaranteed in the temperature range of – 40 ° C to + 125 ° C
·Ultra low crosstalk between DACs (2.4nv · s)
·Low noise (0.75mvp-p, 0.1Hz to 200kHz)
·Optional internal or external datum
·2.7V to 5.5V power supply range (ltc2636-l)
·Low power operation: 100ua per DAC
·Power on reset to zero or intermediate scale option
·Slim 4mm x 3mm dfn-14 and msop-16 package
Responsible editor: GT