TIMING CHARACTERISTICS1, 2 Limit at TMIN
參數資料
型號: AD7719BRUZ
廠商: Analog Devices Inc
文件頁數: 38/40頁
文件大?。?/td> 0K
描述: IC ADC 16BIT 24BIT DUAL 28-TSSOP
標準包裝: 50
位數: 16/24
采樣率(每秒): 105
數據接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉換器數目: 2
功率耗散(最大): 4.5mW
電壓電源: 模擬和數字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 28-TSSOP
包裝: 管件
輸入數目和類型: 3 個差分,單極;3 個差分,雙極
產品目錄頁面: 778 (CN2011-ZH PDF)
REV. A
–7–
AD7719
TIMING CHARACTERISTICS1, 2
Limit at TMIN, TMAX
Parameter
(B Version)
Unit
Conditions/Comments
t1
32.768
kHz typ
Crystal Oscillator Frequency
t2
50
ns min
RESET Pulsewidth
Read Operation
t3
0
ns min
RDY to CS Setup Time
t4
0
ns min
CS Falling Edge to SCLK Active Edge Setup Time3
t5
4
0
ns min
SCLK Active Edge to Data Valid Delay
3
60
ns max
DVDD = 4.75 V to 5.25 V
80
ns max
DVDD = 2.7 V to 3.6 V
t5A
4, 5
0
ns min
CS Falling Edge to Data Valid Delay3
60
ns max
DVDD = 4.75 V to 5.25 V
80
ns max
DVDD = 2.7 V to 3.6 V
t6
100
ns min
SCLK High Pulsewidth
t7
100
ns min
SCLK Low Pulsewidth
t8
0
ns min
CS Rising Edge to SCLK Inactive Edge Hold Time3
t9
6
10
ns min
Bus Relinquish Time after SCLK Inactive Edge
3
80
ns max
t10
100
ns max
SCLK Active Edge to
RDY High3, 7
Write Operation
t11
0
ns min
CS Falling Edge to SCLK Active Edge Setup Time3
t12
30
ns min
Data Valid to SCLK Edge Setup Time
t13
25
ns min
Data Valid to SCLK Edge Hold Time
t14
100
ns min
SCLK High Pulsewidth
t15
100
ns min
SCLK Low Pulsewidth
t16
0
ns min
CS Rising Edge to SCLK Edge Hold Time
NOTES
1Sample tested during initial release to ensure compliance. All input signals are specified with t
R = tF = 5 ns (10% to 90% of DVDD) and timed from a voltage level of 1.6 V.
2See Figures 2 and 3.
3SCLK active edge is falling edge of SCLK.
4These numbers are measured with the load circuit of Figure 1 and defined as the time required for the output to cross the V
OL or VOH limits.
5This specification only comes into play if
CS goes low while SCLK is low. It is required primarily for interfacing to DSP machines.
6These numbers are derived from the measured time taken by the data output to change 0.5 V when loaded with the circuit of Figure 1. The measured number is then
extrapolated back to remove 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.
7
RDY returns high after a read of both ADCs. The same data can be read again, if required, while RDY is high, although care should be taken that subsequent reads
do not occur close to the next output update.
Specifications subject to change without notice.
(AVDD = 2.7 V to 3.6 V or AVDD = 4.75 V to 5.25 V; DVDD = 2.7 V to 3.6 V or DVDD = 4.75 V to 5.25 V;
AGND = DGND = 0 V; XTAL = 32.768 kHz; Input Logic 0 = 0 V, Logic 1 = DVDD, unless otherwise noted.)
ISINK (1.6mA WITH DVDD = 5V
100 A WITH DVDD = 3V)
1.6V
ISOURCE (200 A WITH DVDD = 5V
100 A WITH DVDD = 3V)
TO OUTPUT
PIN
50pF
Figure 1. Load Circuit for Timing Characterization
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD7719 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
相關PDF資料
PDF描述
HA1-4902-2 IC COMPARATOR QUAD PREC 16-DIP
LTC1417IGN#PBF IC A/D CONV 14BIT SAMPLNG 16SSOP
AD7732BRUZ IC ADC 24BIT 2-CH 28-TSSOP
LTC1418CG#PBF IC A/D CONV 14BIT SRL&PAR 28SSOP
AD7574JNZ IC ADC 8BIT CMOS 5V 18-DIP
相關代理商/技術參數
參數描述
AD7719BRUZ-REEL 功能描述:IC ADC 16BIT 24BIT DUAL 28TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
AD7719BRUZ-REEL7 功能描述:IC ADC 16BIT 24BIT DUAL 28TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
AD7719BRZ 功能描述:IC ADC 16BIT 24BIT DUAL 28SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
AD7720 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS Sigma-Delta Modulator
AD7720BRU 功能描述:IC MODULATOR SIGMA-DELTA 28TSSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極