AD5378多通道电压输出数模转换器参数介绍及中文PDF下载

AD5378相关信息来自ADI官网，具体参数以官网公布为准,AD5378供应信息可在查IC网搜索相关供应商。

产品详情

The AD5378 contains 32 14-bit DACs in one CSPBGA package.The AD5378 provides a bipolar output range determined by the voltages applied to the V_REF(+) and VREF(−) inputs. The maximum output voltage span is 17.5 V, corresponding to a bipolar output range of −8.75 V to +8.75 V, and is achieved with reference voltages of VREF(−) = −3.5 V and VREF(+) = +5 V.

The AD5378 guarantees operation over a wide V_SS/V_DD supply range from ±11.4 V to ±16.5 V. The output amplifier headroom requirement is 2.5 V operating with a load current of 1.5 mA, and 2 V operating with a load current of 0.5 mA.

The AD5378 contains a double-buffered parallel interface inwhICh 14 data bits are loaded into one of the input registers under the control of the WR, CS, and DAC channel address pins, A0 to A7. It also has a 3-wire serial interface, which is compatible with SPI®, QSPI™, MICROWIRE™, and DSP interface standards and can handle clock speeds of up to 50 MHz.

The DAC outputs are updated when the DAC registers receive new data. All the outputs can be updated simultaneously by taking the LDAC input low. Each channel has a programmable gain and an offset adjust register.

Each DAC output is gained and buffered on-chip with respect to an external REFGND input. The DAC outputs can also be switched to REFGND via the CLR pin. Table 1 and Table 2 show the product portfolio for high channel count bipolar andunipolar voltage output DACs.

Applications

Level setting in automatic test equipment (ATE)
Variable optical attenuators (VOAs)
Optical switches
Industrial control systems

优势和特点

32-channel DAC in 13 mm × 13 mm 108-lead CSPBGA
Guaranteed monotonic to 14 bits
Buffered voltage outputs
Output voltage span of 3.5 V × V_REF(+)
Maximum output voltage span of 17.5 V