AVDD = DVDD <" />
參數(shù)資料
型號(hào): AD7266BCPZ
廠商: Analog Devices Inc
文件頁數(shù): 26/29頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 3CH 2MSPS 32-LFCSP
設(shè)計(jì)資源: AD7266 SAR ADC in DC-Coupled Differential and Single-Ended Appls (CN0039)
標(biāo)準(zhǔn)包裝: 1
位數(shù): 12
采樣率(每秒): 2M
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 33.6mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ
包裝: 托盤
輸入數(shù)目和類型: 12 個(gè)單端,單極;6 個(gè)差分,單極;6 個(gè)偽差分,單極
產(chǎn)品目錄頁面: 777 (CN2011-ZH PDF)
AD7266
Rev. B | Page 5 of 28
TIMING SPECIFICATIONS
AVDD = DVDD = 2.7 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, internal/external reference = 2.5 V, TA = TMAX to TMIN, unless otherwise noted1.
Table 2.
Parameter
Limit at TMIN, TMAX
Unit
Description
1
MHz min
TA = 40°C to +85°C
4
MHz min
TA > 85°C to 125°C
32
MHz max
tCONVERT
14 × tSCLK
ns max
tSCLK = 1/fSCLK
437.5
ns max
fSCLK = 32 MHz, VDD = 5 V, fSAMPLE = 2 MSPS
583.3
ns max
fSCLK = 24 MHz, VDD = 3 V, fSAMPLE = 1.5 MSPS
tQUIET
30
ns min
Minimum time between end of serial read and next falling edge of CS
t2
15/20
ns min
VDD = 5 V/3 V, CS to SCLK setup time, TA = 40°C to +85°C
20/30
ns min
VDD = 5 V /3 V, CS to SCLK setup time, TA > 85°C to 125°C
t3
15
ns max
Delay from CS until DOUTA and DOUTB are three-state disabled
36
ns max
Data access time after SCLK falling edge, VDD = 3 V
27
ns max
Data access time after SCLK falling edge, VDD = 5 V
t5
0.45 tSCLK
ns min
SCLK low pulse width
t6
0.45 tSCLK
ns min
SCLK high pulse width
t7
10
ns min
SCLK to data valid hold time, VDD = 3 V
5
ns min
SCLK to data valid hold time, VDD = 5 V
t8
15
ns max
CS
rising edge to DOUTA, DOUTB, high impedance
t9
30
ns min
CS
rising edge to falling edge pulse width
t10
5
ns min
SCLK falling edge to DOUTA, DOUTB, high impedance
35
ns max
SCLK falling edge to DOUTA, DOUTB, high impedance
1 Sample tested during initial release to ensure compliance. All input signals are specified with tr = tf = 5 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V.
All timing specifications given are with a 25 pF load capacitance. With a load capacitance greater than this value, a digital buffer or latch must be used. See Serial
2 Minimum SCLK 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.
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