参数资料
型号: AD5373BSTZ
厂商: Analog Devices Inc
文件页数: 24/29页
文件大小: 0K
描述: IC DAC 14BIT 32CH SER 64-LQFP
标准包装: 1
设置时间: 20µs
位数: 14
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 32
电压电源: 模拟和数字,双 ±
功率耗散(最大): 250mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
输出数目和类型: 32 电压,单极;32 电压,双极
采样率(每秒): *
AD5372/AD5373
Rev. C | Page 3 of 28
GENERAL DESCRIPTION
The AD5372/AD5373 contain 32 16-/14-bit DACs in 64-lead
LQFP and LFCSP packages. The devices provide buffered
voltage outputs with a nominal span of 4× the reference voltage.
The gain and offset of each DAC can be independently trimmed
to remove errors. For even greater flexibility, the device is divided
into four groups of eight DACs. Two offset DACs allow the
output range of the groups to be altered. Group 0 can be adjusted
by Offset DAC 0, and Group 1 to Group 3 can be adjusted by
Offset DAC 1.
The AD5372/AD5373 offer guaranteed operation over a wide
supply range: VSS from 16.5 V to 4.5 V and VDD from 9 V to
16.5 V. The output amplifier headroom requirement is 1.4 V
operating with a load current of 1 mA.
The AD5372/AD5373 have a high speed serial interface that is
compatible with SPI, QSPI, MICROWIRE, and DSP inter-
face standards and can handle clock speeds of up to 50 MHz.
The DAC registers are updated on reception of 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 SIGGNDx input. The DAC outputs can also be
switched to SIGGNDx via the CLR pin.
Table 1. High Channel Count Bipolar DACs
Model
Resolution (Bits)
Nominal Output Span
Output Channels
Linearity Error (LSB)
16
4 × VREF (20 V)
16
±4
14
4 × VREF (20 V)
16
±1
16
4 × VREF (20 V)
8
±4
14
4 × VREF (20 V)
8
±1
16
4 × VREF (12 V)
40
±4
14
4 × VREF (12 V)
40
±1
AD5372
16
4 × VREF (12 V)
32
±4
AD5373
14
4 × VREF (12 V)
32
±1
14
±8.75 V
32
±3
14
±8.75 V
40
±3
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AD5378 制造商:AD 制造商全称:Analog Devices 功能描述:32-Channel, 14-Bit, Parallel and Serial Input, Bipolar Voltage Output DAC
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