参数资料
型号: DAC8248FS-REEL
厂商: Analog Devices Inc
文件页数: 10/16页
文件大小: 0K
描述: IC DAC 12BIT DUAL W/BUFF 24-SOIC
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 1,000
设置时间: 1µs
位数: 12
数据接口: 并联
转换器数目: 2
电压电源: 单电源
功率耗散(最大): 50µW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SOIC W
包装: 带卷 (TR)
输出数目和类型: 2 电流,单极;2 电流,双极
采样率(每秒): 1M
Parameter
Symbol
Conditions
DAC8248
Units
VDD = +5 V
VDD = +15 V
Switching Characteristics
+25 C
–40 C to +85 C
–55 C to +125 C
All Temps
(Notes 2, 8)
(Note 9)
(Note 10)
LSB
/MSB Select to
Write Set-Up Time
tCBS
130
170
180
80
ns min
LSB
/MSB Select to
Write Hold Time
tCBH
0
ns min
DAC Select to
Write Set-Up Time
tAS
180
210
220
80
ns min
DAC Select to
Write Hold Time
tAH
0
ns min
LDAC to
Write Set-Up Time
tLS
120
150
160
80
ns min
LDAC to
Write Hold Time
tLH
0
ns min
Data Valid to
Write Set-Up Time
tDS
160
210
220
70
ns min
Data Valid to
Write Hold Time
tDH
0
10
ns min
Write Pulse Width
tWR
130
150
170
90
ns min
LDAC Pulse Width
tLWD
100
110
130
60
ns min
Reset Pulse Width
tRWD
80
90
60
ns min
NOTES
11Measured using internal R
FB A and RFB B. Both DAC digital inputs = 1111 1111 1111.
12Guaranteed and not tested.
13Gain TC is measured from +25
°C to T
MIN or from +25°C to TMAX.
14Absolute Temperature Coefficient is approximately +50 ppm/
°C.
15From 50% of digital input to 90% of final analog output current. V
REF A = VREF B = +10 V; OUT A, OUT B load = 100 , CEXT = 13 pF.
16WR, LDAC = 0 V; DB0–DB7 = 0 V to V
DD or VDD to 0 V.
17Settling time is measured from 50% of the digital input change to where the output settles within 1/2 LSB of full scale.
18See Timing Diagram.
19These limits apply for the commercial and industrial grade products.
10These limits also apply as typical values for V
DD = +12 V with +5 V CMOS logic levels and T A = +25°C.
Specifications subject to change without notice.
Burn-In Circuit
DAC8248
–3–
REV. B
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