VDD = 5 V ± 5%, AGND = DGND = 0 V, " />
參數(shù)資料
型號(hào): AD7863ARZ-2REEL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 20/24頁(yè)
文件大小: 0K
描述: IC ADC 14BIT DUAL 2CHAN 28SOIC
標(biāo)準(zhǔn)包裝: 400
位數(shù): 14
采樣率(每秒): 175k
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 94.5mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 28-SOIC W
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個(gè)單端,單極;4 個(gè)單端,雙極
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.
Parameter1, 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
相關(guān)PDF資料
PDF描述
LTC1483IN8 IC TXRX RS485 LOW EMI LOPWR 8DIP
VI-B33-MW-F2 CONVERTER MOD DC/DC 24V 100W
MS27508E18A35S CONN RCPT 66POS BOX MNT W/SCKT
VI-B33-MW-F1 CONVERTER MOD DC/DC 24V 100W
LTC1605ISW#TR IC ADC 16BIT 5V SAMPLING 28SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7863ARZ-2REEL71 制造商:AD 制造商全稱:Analog Devices 功能描述:Simultaneous Sampling Dual 175 kSPS 14-Bit ADC
AD7863ARZ-3 功能描述:IC ADC 14BIT DUAL 2CHAN 28-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率(每秒):83k 數(shù)據(jù)接口:串行,并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP(0.600",15.24mm) 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端,雙極
AD7863ARZ-31 制造商:AD 制造商全稱:Analog Devices 功能描述:Simultaneous Sampling Dual 175 kSPS 14-Bit ADC
AD7863BR-10 功能描述:IC ADC 14BIT DUAL 2CH 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率(每秒):83k 數(shù)據(jù)接口:串行,并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP(0.600",15.24mm) 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端,雙極
AD7863BR-10REEL 制造商:Analog Devices 功能描述:ADC Dual SAR 175ksps 14-bit Parallel 28-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:2 CH.SIMULTANEOUS SAMPL.14-B DUAL ADC IC - Tape and Reel