AD7472–SPECIFICATIONS1 (V DD
參數(shù)資料
型號(hào)： AD7472YRU-REEL
廠商： Analog Devices Inc
文件頁數(shù)： 16/21頁
文件大小： 0K
描述： IC ADC 12BIT PARALLEL 24-TSSOP
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 12
采樣率（每秒）： 1.5M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 12mW
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： 24-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 24-TSSOP
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 1 個(gè)單端，單極
REV. B
–3–
AD7470/AD7472
AD7472–SPECIFICATIONS1 (V
DD = 2.7 V to 5.25 V
2, REF IN = 2.5 V, A and B Versions: f
CLKIN = 26 MHz @ 5 V and
20 MHz @ 3 V, TA = TMIN to TMAX, unless otherwise noted.)
Parameter
A Version
1
B Version
1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
5 V
3 V
5 V3 V
fS = 1.5 MSPS @ 5 V, fS = 1.2 MSPS @ 3 V
Signal to Noise + Distortion (SINAD) 69
69
dB typ
fIN = 500 kHz Sine Wave
68
dB min
fIN = 100 kHz Sine Wave
Signal-to-Noise Ratio (SNR)
70
dB typ
fIN = 500 kHz Sine Wave
68
dB min
fIN = 100 kHz Sine Wave
Total Harmonic Distortion (THD)
–83
–78
–83
–78
dB typ
fIN = 500 kHz Sine Wave
–83
–84
–83
–84
dB typ
fIN = 100 kHz Sine Wave
–75
dB max
fIN = 100 kHz Sine Wave
Peak Harmonic or Spurious Noise
(SFDR)
–86
–81
–86
–81
dB typ
fIN = 500 kHz Sine Wave
–86
dB typ
fIN = 100 kHz Sine Wave
–76
dB max
fIN = 100 kHz Sine Wave
Intermodulation Distortion (IMD)
Second-Order Terms
–77
dB typ
fIN = 500 kHz Sine Wave
–86
dB typ
fIN = 100 kHz Sine Wave
Third-Order Terms
–77
dB typ
fIN = 500 kHz Sine Wave
–86
dB typ
fIN = 100 kHz Sine Wave
Aperture Delay
5
ns typ
Aperture Jitter
15
ps typ
Full Power Bandwidth
20
MHz typ
@ 3 dB
DC ACCURACY
fS = 1.5 MSPS @ 5 V, fS = 1.2 MSPS @ 3 V
Resolution
12
Bits
Integral Nonlinearity
± 2
± 1
±1
LSB max
Guaranteed No Missed Codes to 11 Bits
(A Version)
Differential Nonlinearity
± 1.8
± 0.9
±0.9
LSB max
Guaranteed No Missed Codes to 12 Bits
(B Version)
Offset Error
± 10
±10
LSB max
Gain Error
± 2
±2
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to REF IN 0 to REF IN
V
DC Leakage Current
± 1
±1
A max
Input Capacitance
33
pF typ
REFERENCE INPUT
REF IN Input Voltage Range
2.5
V
±1% for Specified Performance
DC Leakage Current
±1
A max
Input Capacitance
10/20
pF typ
Track-and-Hold Mode
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.4
V max
Input Current, IIN
±1
A max
Typically 10 nA, VIN = 0 V or VDD
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
± 10
±10
A max
VDD = 2.7 V to 5.25 V
Floating-State Output Capacitance
10
pF max
Output Coding
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
14
CLK IN
Cycles (max)
Track-and-Hold Acquisition Time
135
ns min
Throughput Rate
1.5
1.2
1.5
1.2
MSPS max
Conversion Time + Acquisition Time
POWER REQUIREMENTS
VDD
+2.7/+5.25
V min/max
IDD
4
Digital Inputs = 0 V or DVDD
Normal Mode
2.4
mA max
VDD = 4.75 V to 5.25 V; Typ 2 mA; fS = 1.5 MSPS
Quiescent Current
900
A max
VDD = 4.75 V to 5.25 V; fS = 1.5 MSPS
Normal Mode
1.5
mA max
VDD = 2.7 V to 3.3 V; Typ 1.3 mA; fS = 1.2 MSPS
Quiescent Current
800
A max
VDD = 2.7 V to 3.3 V; fS = 1.2 MSPS
Sleep Mode
1
A max
CLK IN = 0 V or DVDD
Power Dissipation
4
Digital Inputs = 0 V or DVDD
Normal Mode
12
mW max
VDD = 5 V
4.5
mW max
VDD = 3 V
Sleep Mode
5
W max
VDD = 5 V; CLK IN = 0 V or DVDD
33
W max
VDD = 3 V; CLK IN = 0 V or DVDD
NOTES
1Temperature ranges as follows: A and B Versions: –40
°C to +85°C.
2The AD7472 functionally works at 2.35 V. Typical specifications @ 25
°C for SNR (100 kHz) = 68 dB; THD (100 kHz) = –84 dB; INL ± 0.8 LSB.
3Sample tested @ 25
°C to ensure compliance.
4See Power vs. Throughput Rate section.
Specifications subject to change without notice.
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