(TA = TMIN
參數(shù)資料
型號: AD7866BRUZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 12/24頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 2CHAN DUAL 20TSSOP
標準包裝: 1,000
位數(shù): 12
采樣率(每秒): 1M
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 24mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 20-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個單端,單極
配用: EVAL-AD7866CBZ-ND - BOARD EVALUATION AD7866
REV. A
–2–
AD7866–SPECIFICATIONS
(TA = TMIN to TMAX, VDD = 2.7 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, Reference = 2.5 V
External on DCAPA and DCAPB, fSCLK = 20 MHz, unless otherwise noted.)
Parameter
A Version
1
B Version
1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion (SINAD)
2
68
dB min
fIN = 300 kHz Sine Wave, fS = 1 MSPS
Total Harmonic Distortion (THD)
2
–75
dB max
fIN = 300 kHz Sine Wave, fS = 1 MSPS
Peak Harmonic or Spurious Noise (SFDR)
2
–76
dB max
fIN = 300 kHz Sine Wave, fS = 1 MSPS
Intermodulation Distortion (IMD)
2
Second Order Terms
–88
dB typ
Third Order Terms
–88
dB typ
Channel-to-Channel Isolation
–88
dB typ
SAMPLE AND HOLD
Aperture Delay
3
10
ns max
Aperture Jitter
3
50
ps typ
Aperture Delay Matching
3
200
ps max
Full Power Bandwidth
12
MHz typ
@ 3 dB
22
MHz typ
@ 0.1 dB
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity
±1.5
±1
LSB max
B Grade, 0 V to VREF Range Only;
±0.5 LSB typ
±1.5
LSB max
0 V to 2
VREF Range;
±0.5 LSB typ
Differential Nonlinearity
–0.95/+1.25
LSB max
Guaranteed No Missed Codes to 12 Bits
0 V to VREF Input Range
Straight Binary Output Coding
Offset Error
±8
LSB max
Offset Error Match
±1.2
LSB typ
Gain Error
±2.5
LSB max
Gain Error Match
±0.2
LSB typ
2
VREF Input Range
–VREF to +VREF Biased about VREF with
Positive Gain Error
±2.5
LSB max
Twos Complement Output Coding
Zero Code Error
±8
LSB max
Zero Code Error Match
±0.2
LSB typ
Negative Gain Error
±2.5
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to VREF
V
RANGE Pin Low upon
CS Falling Edge
0 to 2
VREF 0 to 2
VREF V
RANGE Pin High upon
CS Falling Edge
DC Leakage Current
±500
nA max
TA = –40 C to +85 C
11
A max
85 C < TA
125 C
Input Capacitance
30
pF typ
When in Track
10
pF typ
When in Hold
REFERENCE INPUT/OUTPUT
Reference Input Voltage
2.5
V
±1% for Specified Performance
Reference Input Voltage Range
4
2/3
V min/V max REF SELECT Pin Tied High
DC Leakage Current
±30
A max
VREF Pin
±160
A max
DCAPA, DCAPB Pins
Input Capacitance
20
pF typ
Reference Output Voltage
5
2.45/2.55
V min/V max
VREF Output Impedance
6
25
typ
VDD = 5 V
45
typ
VDD = 3 V
Reference Temperature Coefficient
50
ppm/
°C typ
REF OUT Error (TMIN to TMAX)
±15
mV typ
LOGIC INPUTS
Input High Voltage, VINH
0.7 VDRIVE
V min
Input Low Voltage, VINL
0.3 VDRIVE
V max
Input Current, IIN
±1
A max
Typically 15 nA, VIN = 0 V or VDRIVE
Input Capacitance, CIN
3
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE – 0.2
V min
ISOURCE = 200
A
Output Low Voltage, VOL
0.4
V max
ISINK = 200
A
Floating-State Leakage Current
±1
A max
VDD = 2.7 V to 5.25 V
Floating-State Output Capacitance
3
10
pF max
Output Coding
Straight (Natural) Binary
Selectable with Either Input Range
Twos Complement
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