参数资料
型号: AD7729ARZ-RL
厂商: Analog Devices Inc
文件页数: 10/16页
文件大小: 0K
描述: IC ADC 15BIT DUAL W/DAC 28SOIC
标准包装: 1,000
类型: ADC,DAC
分辨率(位): 15 b
采样率(每秒): 270.8k
数据接口: 串行
电压电源: 模拟和数字
电源电压: 2.7 V ~ 3.3 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 带卷 (TR)
–3–
REV. 0
AD7729
Parameter
AD7729A
Units
Test Conditions/Comments
LOGIC INPUTS
VINH, Input High Voltage
VDD – 0.8
V min
VINL, Input Low Voltage
0.8
V max
IIH, Input Current
10
A max
CIN, Input Capacitance
10
pF max
LOGIC OUTPUTS
VOH, Output High Voltage
VDD – 0.4
V min
|IOUT| < 100 A
VOL, Output Low Voltage
0.4
V max
|IOUT| < 100 A
IOZL, Low Level Output Three-State Leakage Current
10
A max
IOZH, High Level Output Three-State Leakage Current
10
A max
POWER SUPPLIES
AVDD1, AVDD2
2.7/3.3
V min/max
DVDD1, DVDD2
2.7/3.3
V min/max
IDD
See Table I
NOTES
1Operating Temperature Range: –40
°C to +105°C. Therefore, T
MIN = – 40°C and TMAX = +105°C.
2During power-down, the AUXDAC has an output resistance of 30 k
approximately to AGND.
Specifications subject to change without notice.
Table I. Current Summary (AVDD1 = AVDD2 = DVDD1 = DVDD2 = +3.3 V, RxPOWER1 = 0, RxPOWER0 = 1)
Internal
External
Analog
Digital
Interface Total
Current Current
Current
MCLK
Conditions
(typ)
(max)
BSE
ASE
ON
Comments
ADCs On Only
4.2
3.4
4
13.5
1
0
YES
REFOUT Enabled, BSCLK = MCLK
AUXDAC On Only
2
0.86
0.1
3.4
0
1
YES
REFOUT Disabled, ASCLK = MCLK/48
REFCAP On Only
0.7
0.0001
0.002
1.1
0
NO
REFOUT Disabled
REFCAP and
REFOUT On Only
1
0.0001
0.002
1.7
0
NO
REFOUT Enabled
All Sections Off
0.0001
0.04
0.015
0.1
0
YES
MCLK Active Levels Equal to 0 V and DVDD
All Sections Off
0.0001
0.005
0.05
0
NO
Digital Inputs Static and Equal to 0 V or
DVDD
The above values are in mA.
RL
10k
CL
50pF
Figure 1. AUXDAC Load Equivalent Circuit
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