参数资料
型号: AD7303BRMZ
厂商: Analog Devices Inc
文件页数: 9/16页
文件大小: 0K
描述: IC DAC 8BIT DUAL R-R 8-MSOP
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 50
设置时间: 1.2µs
位数: 8
数据接口: 串行
转换器数目: 2
电压电源: 单电源
功率耗散(最大): 6.93mW
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 管件
输出数目和类型: 2 电压,单极;2 电压,双极
采样率(每秒): 833k
产品目录页面: 784 (CN2011-ZH PDF)
REV. 0
–2–
AD7303–SPECIFICATIONS
(VDD = +2.7 V to +5.5 V, Internal Reference; RL = 10 k
to VDD and GND; CL = 100 pF
to GND; all specifications TMIN to TMAX unless otherwise noted)
Parameter
B Versions
1
Units
Conditions/Comments
STATIC PERFORMANCE
Resolution
8
Bits
Relative Accuracy
±1
LSB max
Note 2
Differential Nonlinearity
±1
LSB max
Guaranteed Monotonic
Zero-Code Error @ +25
°C
3
LSB max
All Zeros Loaded to DAC Register
Full-Scale Error
–0.5
LSB typ
All Ones Loaded to DAC Register
Gain Error
3
+1
% FSR typ
Zero-Code Temperature Coefficient
100
V/°C typ
DAC REFERENCE INPUT
REFIN Input Range
1 to VDD/2
V min to max
REFIN Input Impedance
10
Μ typ
Internal Voltage Reference Error
4
±1
% max
OUTPUT CHARACTERISTICS
Output Voltage Range
0 to VDD
V min to max
Output Voltage Settling Time
2
s max
Typically 1.2
s
Slew Rate
7.5
V/
s typ
Digital to Analog Glitch Impulse
0.5
nV-s typ
1 LSB Change Around Major Carry
Digital Feedthrough
0.2
nV-s typ
Digital Crosstalk
0.2
nV-s typ
Analog Crosstalk
±0.2
LSB typ
DC Output Impedance
40
typ
Short Circuit Current
14
mA typ
Power Supply Rejection Ratio
0.0001
%/% max
V
DD = ± 10%
LOGIC INPUTS
Input Current
±10
A max
VINL, Input Low Voltage
0.8
V max
VDD = +5 V
0.6
V max
VDD = +3 V
VINH, Input High Voltage
2.4
V min
VDD = +5 V
2.1
V min
VDD = +3 V
Pin Capacitance
5
pF max
POWER REQUIREMENTS
VDD
2.7/5.5
V min/max
IDD (Normal Mode)
Both DACs Active and Excluding Load Currents,
VDD = 3.3 V
VIH = VDD, VIL = GND
@ +25
°C
2.1
mA max
See Figure 8
TMIN – TMAX
2.3
mA max
VDD = 5.5 V
@ +25
°C
2.7
mA max
TMIN – TMAX
3.5
mA max
IDD (Full Power-Down)
@ +25
°C
80
nA typ
VIH = VDD, VIL = GND
TMIN – TMAX
1
A max
See Figure 19
NOTES
1Temperature ranges are as follows: B Version, –40
°C to +105°C.
2Relative Accuracy is calculated using a reduced digital code range of 15 to 245.
3Gain Error is specified between Codes 15 and 245. The actual error at Code 15 is typically 3 LSB.
4Internal Voltage Reference Error = (Actual V
REF – Ideal VREF/Ideal VREF) 100. Ideal VREF = VDD/2, actual VREF = voltage on reference pin when internal reference
is selected.
Specifications subject to change without notice.
ORDERING GUIDE
Temperature
Package
Model
Range
Options*
AD7303BN
–40
°C to +105°C
N-8
AD7303BR
–40
°C to +105°C
SO-8
AD7303BRM
–40
°C to +105°C
RM-8
*N = Plastic DIP; R = SOIC; RM = microSOIC.
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