1 LSB = V
參數(shù)資料
型號(hào): AD7568BSZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 7/14頁(yè)
文件大?。?/td> 0K
描述: IC DAC 12BIT OCTAL LC2MOS 44MQFP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝: 1
設(shè)置時(shí)間: 500ns
位數(shù): 12
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 8
電壓電源: 單電源
功率耗散(最大): 17.5mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應(yīng)商設(shè)備封裝: 44-MQFP(10x10)
包裝: 托盤
輸出數(shù)目和類型: 16 電流,單極;16 電流,雙極
采樣率(每秒): 2M
產(chǎn)品目錄頁(yè)面: 785 (CN2011-ZH PDF)
–2–
AD7568–SPECIFICATIONS1
Parameter
Units
Test Conditions/Comments
ACCURACY
Resolution
12
Bits
1 LSB = VREF/2
12 = 1.22 mV when V
REF = 5 V
Relative Accuracy
±0.5
LSB max
Differential Nonlinearity
±0.9
LSB max
All Grades Guaranteed Monotonic over Temperature
Gain Error
+25
°C
±4
LSBs max
TMIN to TMAX
±5
LSBs max
Gain Temperature Coefficient
2
ppm FSR/
°C typ
5
ppm FSR/
°C max
Output Leakage Current
IOUT1
@ +25
°C
10
nA max
See Terminology Section
TMIN to TMAX
200
nA max
REFERENCE INPUT
Input Resistance
5
k
min
Typical Input Resistance = 7 k
9k
max
Ladder Resistance Mismatch
2
% max
Typically 0.6%
DIGITAL INPUTS
VINH, Input High Voltage
2.4
V min
VINL, Input Low Voltage
0.8
V max
IINH, Input Current
±1
A max
CIN, Input Capacitance
10
pF max
POWER REQUIREMENTS
VDD Range
4.75/5.25
V min/V max
Power Supply Sensitivity
Gain/V
DD
–75
dB typ
IDD
300
A max
VINH = 4.0 V min, VINL = 0.4 V max
3.5
mA max
VINH = 2.4 V min, VINL = 0.8 V max
AC PERFORMANCE CHARACTERISTICS
Parameter
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Output Voltage Settling Time
500
ns typ
To 0.01% of Full-Scale Range. DAC Latch Alternately
Loaded with All 0s and All 1s.
Digital to Analog Glitch Impulse
40
nV–s typ
Measured with VREF = 0 V. DAC Register Alternately
Loaded with All 0s and All 1s.
Multiplying Feedthrough Error
–66
dB max
VREF = 20 V pk-pk, 10 kHz Sine Wave. DAC Latch
Loaded with All 0s.
Output Capacitance
60
pF max
All 1s Loaded to DAC.
30
pF max
All 0s Loaded to DAC.
Channel-to-Channel Isolation
–76
dB typ
Feedthrough from Any One Reference to the Others
with 20 V pk-pk, 10 kHz Sine Wave Applied.
Digital Crosstalk
40
nV–s typ
Effect of all 0s to all 1s Code Transition on
Nonselected DACs.
Digital Feedthrough
40
nV–s typ
Feedthrough to Any DAC Output with FSIN High
and Square Wave Applied to SDIN and SCLK.
Total Harmonic Distortion
–83
dB typ
VREF = 6 V rms, 1 kHz Sine Wave.
Output Noise Spectral Density
@ 1 kHz
20
nV/
√Hz
All 1s Loaded to the DAC. VREF = 0 V. Output Op
Amp is AD OP07.
NOTES
1Temperature range as follows: B Version: –40
°C to +85°C.
2All specifications also apply for V
REF = +10 V, except relative accuracy which degrades to ± 1 LSB.
Specifications subject to change without notice.
(VDD = +4.75 V to +5.25 V; IOUT1 = IOUT2 = O V; VREF = +5 V; TA = TMIN to TMAX,
unless otherwise noted)
(These characteristics are included for Design Guidance and are not subject
to test. DAC output op amp is AD843.)
REV. C
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