VDD = V
參數(shù)資料
型號(hào): EVAL-AD7938CBZ
廠商: Analog Devices Inc
文件頁數(shù): 34/36頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR AD7938
標(biāo)準(zhǔn)包裝: 1
ADC 的數(shù)量: 1
位數(shù): 12
采樣率(每秒): 1.5M
數(shù)據(jù)接口: 并聯(lián)
輸入范圍: ±VREF
在以下條件下的電源(標(biāo)準(zhǔn)): 13.5mW @ 5V
工作溫度: -40°C ~ 85°C
已用 IC / 零件: AD7938
已供物品: 板,CD
相關(guān)產(chǎn)品: AD7938BSUZ-6REEL7DKR-ND - IC ADC 12BIT 8CHAN 32TQFP
AD7938BSUZ-6REEL7CT-ND - IC ADC 12BIT 8CHAN 32TQFP
AD7938BCPZ-6-ND - IC ADC 12BIT 8CH 625KSPS 32LFCSP
AD7938BSUZ-ND - IC ADC 12BIT 8CHAN 32TQFP
AD7938BSUZ-6-ND - IC ADC 12BIT 8CHAN 32TQFP
AD7938BCPZ-ND - IC ADC 12BIT 8CH 1.5MSPS 32LFCSP
AD7938BCPZ-REEL7-ND - IC ADC 12BIT 8CH 1.5MSPS 32LFCSP
AD7938BCPZ-6REEL7-ND - IC ADC 12BIT 8CH 625KSPS 32LFCSP
AD7938BSUZ-6REEL7TR-ND - IC ADC 12BIT 8CHAN 32TQFP
AD7938BSUZ-REEL7-ND - IC ADC 12BIT 8CHAN 32TQFP
其它名稱: Q3627458
Data Sheet
AD7938/AD7939
Rev. C | Page 7 of 36
TIMING SPECIFICATIONS
VDD = VDRIVE = 2.7 V to 5.25 V, internal/external VREF = 2.5 V, unless otherwise noted; fCLKIN = 25.5 MHz, fSAMPLE = 1.5 MSPS; TA = TMIN to
TMAX, unless otherwise noted.
Table 4.
Limit at TMIN, TMAX
Parameter1
AD7938
AD7939
Unit
Description
fCLKIN2
700
kHz min
CLKIN frequency.
25.5
MHz max
tQUIET
30
ns min
Minimum time between end of read and start of next conversion; in other words, time
from when the data bus goes into three-state until the next falling edge of CONVST.
t1
10
ns min
CONVST pulse width.
t2
15
ns min
CONVST falling edge to CLKIN falling edge setup time.
t3
50
ns max
CLKIN falling edge to BUSY rising edge.
t4
0
ns min
CS to WR setup time.
t5
0
ns min
CS to WR hold time.
t6
10
ns min
WR pulse width.
t7
10
ns min
Data setup time before WR.
t8
10
ns min
Data hold after WR.
t9
10
ns min
New data valid before falling edge of BUSY.
t10
0
ns min
CS to RD setup time.
t11
0
ns min
CS to RD hold time.
t12
30
ns min
RD pulse width.
30
ns max
Data access time after RD.
3
ns min
Bus relinquish time after RD.
50
ns max
Bus relinquish time after RD.
t15
0
ns min
HBEN to RD setup time.
t16
0
ns min
HBEN to RD hold time.
t17
10
ns min
Minimum time between reads/writes.
t18
0
ns min
HBEN to WR setup time.
t19
10
ns min
HBEN to WR hold time.
t20
40
ns max
CLKIN falling edge to BUSY falling edge.
t21
15.7
ns min
CLKIN low pulse width.
t22
7.8
ns min
CLKIN high pulse width.
1
Sample tested during initial release to ensure compliance. All input signals are specified with tRISE = tFALL = 5 ns (10% to 90% of VDD) and timed from a voltage level of
1.6 V. All timing specifications given above are with a 25 pF load capacitance (see Figure 36, Figure 37, Figure 38, and Figure 39).
2
Minimum CLKIN for specified performance, with slower SCLK frequencies performance specifications apply typically.
3
The time required for the output to cross 0.4 V or 2.4 V.
4
t14 is derived from the measured time taken by the data outputs to change 0.5 V. The measured number is then extrapolated back to remove the effects of charging or
discharging the 25 pF capacitor. This means that the time, t14, quoted in the timing characteristics is the true bus relinquish time of the part and is independent of the
bus loading.
相關(guān)PDF資料
PDF描述
REC5-243.3DRW/H4/A CONV DC/DC 5W 18-36VIN +/-3.3V
STD02W-J WIRE & CABLE MARKERS
EVAL-AD7922CBZ BOARD EVAL FOR AD7922
EBM12DTMT-S189 CONN EDGECARD 24POS R/A .156 SLD
GEM25DTMS-S189 CONN EDGECARD 50POS R/A .156 SLD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EVAL-AD7939CB 制造商:Analog Devices 功能描述:EVALUATION CONTROL BOARD I.C. - Bulk
EVAL-AD7939CBZ 功能描述:BOARD EVALUATION FOR AD7939CBZ RoHS:是 類別:編程器,開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率(每秒):94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源(標(biāo)準(zhǔn)):- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板,軟件
EVAL-AD7940CB 制造商:AD 制造商全稱:Analog Devices 功能描述:3mW, 100kSPS, 14-Bit ADC in 6-Lead SOT-23
EVAL-AD7940CBZ 功能描述:BOARD EVALUATION AD7940 RoHS:是 類別:編程器,開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率(每秒):94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源(標(biāo)準(zhǔn)):- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板,軟件
EVAL-AD7942CB 功能描述:BOARD EVALUATION FOR AD7942 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率(每秒):94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源(標(biāo)準(zhǔn)):- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板,軟件