参数资料
| 型号： | AD5737ACPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 18/44页 |
| 文件大小： | 0K |
| 描述： | IC DAC QUAD 12BIT CUR 64-LFCSP |
| 标准包装： | 1 |
| 设置时间： | 15µs |
| 位数： | 12 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 4 |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 64-LFCSP-VQ（9x9） |
| 包装： | 托盘 |
| 输出数目和类型： | 4 电流，单极 |
| 采样率（每秒）： | * |
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Data Sheet
AD5737
Rev. C | Page 25 of 44
ENABLING THE OUTPUT
To correctly write to and set up the part from a power-on
condition, use the following sequence:
1. Perform a hardware or software reset after initial power-on.
2. Configure the dc-to-dc converter supply block. Set the
dc-to-dc switching frequency, the maximum output voltage
allowed, and the dc-to-dc converter phase between channels.
3. Configure the DAC control register on a per-channel basis.
Select the output range, and enable the dc-to-dc converter
block (DC_DC bit). Other control bits can also be config-
ured. Set the INT_ENABLE bit, but do not set the OUTEN
(output enable) bit.
4. Write the required code to the DAC data register. This step
implements a full internal DAC calibration. For reduced
output glitch, allow at least 200 s before performing Step 5.
5. Write to the DAC control register again to enable the
output (set the OUTEN bit).
Figure 50 provides a flowchart of this sequence.
POWER ON.
STEP 1: PERFORM A SOFTWARE/HARDWARE RESET.
STEP 4: WRITE TO ONE OR MORE DAC DATA REGISTERS.
STEP 2: WRITE TO DC-TO-DC CONTROL REGISTER TO
SET DC-TO-DC CLOCK FREQUENCY, PHASE,
AND MAXIMUM VOLTAGE.
STEP 3: WRITE TO DAC CONTROL REGISTER. SELECT
THE DAC CHANNEL AND OUTPUT RANGE.
SET THE DC_DC BIT AND OTHER CONTROL
STEP 5: WRITE TO DAC CONTROL REGISTER. RELOAD
10067-
073
ALLOW AT LEAST 200s BETWEEN STEP 3
AND STEP 5 FOR REDUCED OUTPUT GLITCH.
BITS AS REQUIRED. SET THE INT_ENABLE BIT
BUT DO NOT SET THE OUTEN BIT.
SEQUENCE AS IN STEP 3. SET THE OUTEN
BIT TO ENABLE THE OUTPUT.
Figure 50. Programming Sequence to Correctly Enable the Output
REPROGRAMMING THE OUTPUT RANGE
When changing the range of an output, the same sequence
described in the Enabling the Output section should be used.
It is recommended that the range be set to 0 V (zero scale or
midscale) before the output is disabled. Because the dc-to-dc
switching frequency, maximum output voltage, and phase have
already been selected, there is no need to reprogram these values.
Figure 51 provides a flowchart of this sequence.
CHANNEL OUTPUT IS ENABLED.
STEP 3: WRITE VALUE TO THE DAC DATA REGISTER.
STEP 1: WRITE TO CHANNEL’S DAC DATA
REGISTER. SET THE OUTPUT
TO 0V (ZERO OR MIDSCALE).
STEP 2: WRITE TO DAC CONTROL REGISTER.
DISABLE THE OUTPUT (OUTEN = 0) AND
STEP 4: WRITE TO DAC CONTROL REGISTER.
RELOAD SEQUENCE AS IN STEP 2.
10067-
074
SET THE NEW OUTPUT RANGE. KEEP THE
DC_DC BIT AND THE INT_ENABLE BIT SET.
SET THE OUTEN BIT TO ENABLE THE
OUTPUT.
Figure 51. Programming Sequence to Change the Output Range
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| AD573JN | 功能描述:IC ADC 10BIT SAR REGISTER 20-DIP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD573JNZ | 功能描述:IC ADC 10BIT SAR REGISTER 20-DIP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
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