参数资料
型号: AD7478AARMZ-REEL
厂商: Analog Devices Inc
文件页数: 26/29页
文件大小: 0K
描述: IC ADC 8BIT 1MSPS 8-MSOP
标准包装: 3,000
位数: 8
采样率(每秒): 1M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 17.5mW
电压电源: 单电源
工作温度: -40°C ~ 85°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: 带卷 (TR)
输入数目和类型: 1 个单端,单极
AD7476A/AD7477A/AD7478A
Rev. F | Page 5 of 28
AD7477A SPECIFICATIONS
VDD = 2.35 V to 5.25 V, fSCLK = 20 MHz, fSAMPLE = 1 MSPS, TA = TMIN to TMAX, unless otherwise noted.1
Table 2.
Parameter
A Grade2
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 100 kHz sine wave
Signal-to-Noise + Distortion (SINAD)3
61
dB min
Total Harmonic Distortion (THD)3
–72
dB max
Peak Harmonic or Spurious Noise (SFDR)3
–73
dB max
Intermodulation Distortion (IMD)3
Second-Order Terms
–82
dB typ
fa = 100.73 kHz, fb = 90.7 kHz
Third-Order Terms
–82
dB typ
fa = 100.73 kHz, fb = 90.7 kHz
Aperture Delay
10
ns typ
Aperture Jitter
30
ps typ
Full Power Bandwidth
13.5
MHz typ
@ 3 dB
2
MHz typ
@ 0.1 dB
DC ACCURACY
Resolution
10
Bits
Integral Nonlinearity
±0.5
LSB max
Differential Nonlinearity
±0.5
LSB max
Guaranteed no missed codes to 10 bits
Offset Error3, 4
±1
LSB max
Gain Error3, 4
±1
LSB max
Total Unadjusted Error (TUE)3, 4
±1.2
LSB max
ANALOG INPUT
Input Voltage Range
0 to VDD
V
DC Leakage Current
±0.5
A max
Input Capacitance
20
pF typ
Track-and-hold in track; 6 pF typ when in hold
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
1.8
V min
VDD = 2.35 V
Input Low Voltage, VINL
0.8
V max
VDD = 5 V
0.4
V max
VDD = 3 V
Input Current, IIN, SCLK Pin
±0.5
μA max
Typically 10 nA, VIN = 0 V or VDD
Input Current, IIN, CS Pin
±10
nA typ
Input Capacitance, CIN5
5
pF max
LOGIC OUTPUTS
Output High Voltage VOH
VDD – 0.2
V min
ISOURCE = 200 μA, VDD = 2.35 V to 5.25 V
Output Low Voltage, VOL
0.4
V max
ISINK = 200 μA
Floating-State Leakage Current
±1
μA max
Floating-State Output Capacitance5
5
pF max
Output Coding
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
700
ns max
14 SCLK cycles with SCLK at 20 MHz
Track-and-Hold Acquisition Time3
250
ns max
Throughput Rate
1
MSPS max
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