参数资料
型号: AD5370BSTZ
厂商: Analog Devices Inc
文件页数: 24/29页
文件大小: 0K
描述: IC DAC 16BIT 40CH SERIAL 64-LQFP
产品培训模块: Data Converter Fundamentals
DAC Architectures
设计资源: 40 Channels of Programmable Output Span Using AD5371 (CN0149)
标准包装: 1
设置时间: 20µs
位数: 16
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 40
电压电源: 双 ±
功率耗散(最大): 610mW
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: 40 电压,单极;40 电压,双极
AD5370
Rev. 0 | Page 3 of 28
GENERAL DESCRIPTION
The AD53701 contains forty 16-bit DACs in a single 64-lead
LFCSP and a 64-lead LQFP. The device provides buffered
voltage outputs with a span that is 4× the reference voltage. The
gain and offset of each DAC channel can be independently
trimmed to remove errors. For even greater flexibility, the device is
divided into five groups of eight DACs. Three offset DAC channels
allow the output range of blocks to be adjusted. Group 0 can be
adjusted by Offset DAC 0, Group 1 can be adjusted by Offset
DAC 1, and Group 2 to Group 4 can be adjusted by Offset DAC 2.
The AD5370 offers guaranteed operation over a wide supply
range, with 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.
1 Protected by U.S. Patent No. 5,969,657; other patents pending.
The AD5370 has a high speed serial interface that is compatible
with SPI, QSPI, MICROWIRE, and DSP interface standards
and can handle clock speeds of up to 50 MHz.
The DAC registers are updated on receipt 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 to allow removal of gain and offset errors.
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
Nominal Output Span
Output Channels
Linearity Error (LSB)
16 bits
4 × VREF (20 V)
16
±4
14 bits
4 × VREF (20 V)
16
±1
16 bits
4 × VREF (20 V)
8
±4
14 bits
4 × VREF (20 V)
8
±1
AD5370
16 bits
4 × VREF (12 V)
40
±4
14 bits
4 × VREF (12 V)
40
±1
16 bits
4 × VREF (12 V)
32
±4
14 bits
4 × VREF (12 V)
32
±1
14 bits
±8.75 V
32
±3
14 bits
±8.75 V
40
±3
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