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| 型号： | AD7863ARSZ-2REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 20/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT DUAL 2CHAN 28SSOP |
| 标准包装： | 500 |
| 位数： | 14 |
| 采样率（每秒）： | 175k |
| 数据接口： | 并联 |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 94.5mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 4 个单端，单极；4 个单端，双极 |
AD7863
Rev. B | Page 5 of 24
TIMING CHARACTERISTICS
VDD = 5 V ± 5%, AGND = DGND = 0 V, REF = Internal. All specifications TMIN to TMAX, unless otherwise noted.
Table 2.
A, B Versions
Unit
Test Conditions/Comments
tCONV
5.2
μs max
Conversion time
tACQ
0.5
μs max
Acquisition time
Parallel Interface
t1
0
ns min
CS to RD setup time
t2
0
ns min
CS to RD hold time
t3
35
ns min
CONVST pulse width
t4
45
ns min
RD pulse width
30
ns min
Data access time after falling edge of RD
5
ns min
Bus relinquish time after rising edge of RD
30
ns max
t7
10
ns min
Time between consecutive reads
t8
400
ns min
Quiet time
1 Sample tested at 25°C to ensure compliance. All input signals are measured with tr = tf = 1 ns (10% to 90% of 5 V) and timed from a voltage level of 1.6 V.
2 See Figure 2.
3 Measured with the load circuit of Figure 3 and defined as the time required for an output to cross 0.8 V or 2.0 V.
4 These times are derived from the measured time taken by the data outputs to change 0.5 V when loaded with the circuit of Figure 3. The measured number is then
extrapolated back to remove the effects of charging or discharging the 50 pF capacitor. This means that the times quoted in the timing characteristics are the true bus
relinquish times of the part and as such are independent of external bus loading capacitances.
VA1
VA2
VB1
VB2
CONVST
BUSY
A0
CS
RD
DATA
tCONV = 5.2s
06
41
1-
0
02
t3
t8
tACQ
t1
t4
t2
t5
t6
t7
Figure 2. Timing Diagram
TO OUTPUT
PIN
1.6mA
200A
50pF
06
41
1-
0
03
Figure 3. Load Circuit for Access Time and Bus Relinquish Time
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7863ARSZ-2REEL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:Simultaneous Sampling Dual 175 kSPS 14-Bit ADC |
| AD7863ARSZ-3 | 功能描述:IC ADC 14BIT DUAL 2CHAN 28SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7863ARSZ-31 | 制造商:AD 制造商全称:Analog Devices 功能描述:Simultaneous Sampling Dual 175 kSPS 14-Bit ADC |
| AD7863ARSZ-3REEL | 功能描述:IC ADC 14BIT DUAL 2CHAN 28SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7863ARSZ-3REEL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Simultaneous Sampling Dual 175 kSPS 14-Bit ADC |
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