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 VREF(+) 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 VSS/VDD 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

• AD5170 - 256位、两次可编程、 I2C 兼容型数字电位计
• ADP1706 - 1 A、低压差、CMOS线性稳压器
• ADUM5404 - 集成DC/DC转换器的四通道隔离器（0/4通道方向性）
• ADP123 - 5.5 V输入、300 mA、低静态电流、CMOS线性调节器，提供可调输出电压
• ADR510 - 1.0 V精密、低噪声、分流基准电压源
• AD5451 - 10位、高带宽、串行接口乘法DAC
• ADV3227 - 750 MHz、16 × 16模拟交叉点开关
• ADM560 - 超低功耗、低电平有效关断和高电平有效接收器使能
• ADXL206 - 精密、±5 g、双轴、高温iMEMS 加速度计
• AD2410W - 汽车音频总线A2B收发器