All input signals are specified with tr = tf = 1 ns (10% to 90% of V<" />
參數(shù)資料
型號: AD5415YRUZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 26/29頁
文件大?。?/td> 0K
描述: IC DAC 12BIT DUAL MULT 24-TSSOP
產品培訓模塊: Data Converter Fundamentals
DAC Architectures
標準包裝: 2,500
設置時間: 120ns
位數(shù): 12
數(shù)據(jù)接口: 串行
轉換器數(shù)目: 2
電壓電源: 單電源
功率耗散(最大): 3.5µW
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 24-TSSOP
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 4 電流,單極;4 電流,雙極
采樣率(每秒): 2.47M
Data Sheet
AD5415
Rev. E | Page 5 of 28
TIMING CHARACTERISTICS
All input signals are specified with tr = tf = 1 ns (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH)/2. VDD = 2.5 V to 5.5 V,
VREF = 10 V, IOUT2 = 0 V, temperature range for Y version: 40°C to +125°C. All specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter1
Limit at TMIN, TMAX
Unit
Conditions/Comments2
fSCLK
50
MHz max
Maximum clock frequency
t1
20
ns min
SCLK cycle time
t2
8
ns min
SCLK high time
t3
8
ns min
SCLK low time
t4
13
ns min
SYNC falling edge to SCLK falling edge setup time
t5
5
ns min
Data setup time
t6
4
ns min
Data hold time
t7
5
ns min
SYNC rising edge to SCLK falling edge
t8
30
ns min
Minimum SYNC high time
t9
0
ns min
SCLK falling edge to LDAC falling edge
t10
12
ns min
LDAC pulse width
t11
10
ns min
SCLK falling edge to LDAC rising edge
25
ns min
SCLK active edge to SDO valid, strong SDO driver
60
ns min
SCLK active edge to SDO valid, weak SDO driver
Update Rate
2.47
MSPS
Consists of cycle time, SYNC high time, data setup, and output voltage settling time
1
Guaranteed by design and characterization, not subject to production test.
2
Falling or rising edge as determined by the control bits of the serial word. Strong or weak SDO driver selected via the control register.
3
Daisy-chain and readback modes cannot operate at maximum clock frequency. SDO timing specifications measured with a load circuit, as shown in Figure 5.
t1
t2
t3
t7
t8
t4
t5
t6
t9
t10
t11
DB15
DB0
SCLK
DIN
LDAC1
LDAC2
SYNC
1ASYNCHRONOUS LDAC UPDATE MODE.
2SYNCHRONOUS LDAC UPDATE MODE.
NOTES
ALTERNATIVELY, DATA CAN BE CLOCKED INTO THE INPUT SHIFT REGISTER ON THE RISING EDGE OF SCLK AS
DETERMINED BY THE CONTROL BITS. TIMING IS AS ABOVE, WITH SCLK INVERTED.
04461-002
Figure 2. Standalone Mode Timing Diagram
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