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參數資料
| 型號： | AD7863AR-10 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | RECTIFIER SCHOTTKY DUAL 30A 30V 275A-ifsm 0.55V-vf 1mA-ir TO-3P 30/TUBE |
| 中文描述： | 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO28 |
| 封裝： | MS-013AE, SOIC-28 |
| 文件頁數： | 4/18頁 |
| 文件大小： | 207K |
| 代理商： | AD7863AR-10 |
AD7863
–4–
REV. A
TIMING CHARACTERISTICS
1, 2
A, B
Versions
Parameter
Units
Test Conditions/Comments
t
CONV
t
ACQ
Parallel Interface
t
1
t
2
t
3
t
4
t
53
t
64
5.2
0.5
μ
s max
μ
s max
Conversion Time
Acquisition Time
0
0
35
45
30
5
30
10
400
ns min
ns min
ns min
ns min
ns min
ns min
ns max
ns min
ns min
CS
to
RD
Setup Time
CS
to
RD
Hold Time
CONVST
Pulsewidth
Read Pulsewidth
Data Access Time after Falling Edge of
RD
Bus Relinquish Time after Rising Edge of
RD
t
7
t
8
Time Between Consecutive Reads
Quiet Time
NOTES
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 1.
3
Measured with the load circuit of Figure 2 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 2. 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.
Specifications subject to change without notice.
(V
DD
= +5 V 5%, AGND = DGND = 0 V, REF = Internal. All specifications T
MIN
to T
MAX
unless
otherwise noted.)
t
3
t
1
t
4
t
5
t
2
t
6
V
A1
V
A2
V
B1
V
B2
CONVST
BUSY
A0
CS
RD
DATA
t
7
t
CONV
= 5.2 s
t
ACQ
t
8
Figure 1. Timing Diagram
TO OUTPUT
PIN
1.6mA
200 A
50pF
Figure 2. Load Circuit for Access Time and Bus Relinquish Time
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相關代理商/技術參數 |
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| AD7863AR-2 | 功能描述:IC ADC 14BIT DUAL 2CH 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
| AD7863AR-2REEL | 制造商:Analog Devices 功能描述:ADC Dual SAR 175ksps 14-bit Parallel 28-Pin SOIC W T/R |
| AD7863AR-2REEL7 | 功能描述:IC ADC 14BIT DUAL 2CH 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
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