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參數資料
| 型號： | AD7472YRU-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 15/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT PARALLEL 24-TSSOP |
| 標準包裝： | 1 |
| 位數： | 12 |
| 采樣率（每秒）： | 1.5M |
| 數據接口： | 并聯 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 12mW |
| 電壓電源： | 模擬和數字 |
| 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） |
| 供應商設備封裝： | 24-TSSOP |
| 包裝： | 標準包裝 |
| 輸入數目和類型： | 1 個單端，單極 |
| 其它名稱： | AD7472YRU-REEL7DKR |
REV. B
AD7470/AD7472
–2–
AD7470–SPECIFICATIONS1
(VDD = 2.7 V to 5.25 V
2, REF IN = 2.5 V, f
CLKIN = 30 MHz @ 5 V and 24 MHz @ 3 V;
TA = TMIN to TMAX
3, unless otherwise noted.)
Parameter
A Version
1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
5 V
3 V
fS = 1.75 MSPS @ 5 V, fS = 1.5 MSPS @ 3 V
Signal to Noise + Distortion (SINAD)
60
dB min
fIN = 500 kHz Sine Wave
60
dB min
fIN = 100 kHz Sine Wave
Signal-to-Noise Ratio (SNR)
60
dB min
fIN = 500 kHz Sine Wave
60
dB min
fIN = 100 kHz Sine Wave
Total Harmonic Distortion (THD)
–83
dB typ
fIN = 500 kHz Sine Wave
–75
dB max
fIN = 100 kHz Sine Wave
Peak Harmonic or Spurious Noise (SFDR)
–85
dB typ
fIN = 500 kHz Sine Wave
–75
dB max
fIN = 100 kHz Sine Wave
Intermodulation Distortion (IMD)
Second-Order Terms
–79
–75
dB typ
fIN = 500 kHz Sine Wave
–75
dB max
fIN = 100 kHz Sine Wave
Third-Order Terms
–77
–75
dB typ
fIN = 500 kHz Sine Wave
–75
dB max
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 = 1.75 MSPS @ 5 V; fS = 1.5 MSPS @ 3 V
Resolution
10
Bits
Integral Nonlinearity
±1
LSB max
Differential Nonlinearity
±0.9
LSB max
Guaranteed No Missed Codes to 10 Bits
Offset Error
±2.5
LSB max
Gain Error
±1
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to REF IN
V
DC Leakage Current
±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
4
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
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
12
CLK IN Cycles (max)
Track-and-Hold Acquisition Time
135
ns min
Throughput Rate
1.75
1.5
MSPS max
Conversion Time + Acquisition Time
CLK IN of 30 MHz @ 5 V and 24 MHz @ 3 V
POWER REQUIREMENTS
VDD
+2.7/+5.25
V min/max
IDD
5
Digital Inputs = 0 V or DVDD
Normal Mode
2.4
mA max
VDD = 4.75 V to 5.25 V; fS = 1.75 MSPS; Typ 2 mA
Quiescent Current
900
A max
VDD = 4.75 V to 5.25 V; fS = 1.75 MSPS
Normal Mode
1.5
mA max
VDD = 2.7 V to 3.3 V; fS = 1.5 MSPS; Typ 1.3 mA
Quiescent Current
800
A max
VDD = 2.7 V to 3.3 V; fS = 1.5 MSPS
Sleep Mode
1
A max
CLK IN = 0 V or DVDD
Power Dissipation
5
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
3
W max
VDD = 3 V; CLK IN = 0 V or DVDD
NOTES
1Temperature ranges as follows: A Version: –40
°C to +85°C.
2The AD7470 functionally works at 2.35 V. Typical specifications @ 25
°C for SNR (100 kHz) = 59 dB; THD (100 kHz) = –84 dB; INL ±0.8 LSB.
3The AD7470 will typically maintain A-grade performance up to 125
°C, with a reduced CLK of 20 MHz @ 5 V and 16 MHz @ 3 V. Typical sleep mode current @ 125°C is 700 nA.
4Sample tested @ 25
°C to ensure compliance.
5See Power vs. Throughput Rate section.
Specifications subject to change without notice.
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