参数资料
型号: AD7274BRMZ-REEL
厂商: Analog Devices Inc
文件页数: 24/29页
文件大小: 0K
描述: IC ADC 12BIT 3MSPS HS LP 8MSOP
标准包装: 3,000
位数: 12
采样率(每秒): 3M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 18mW
电压电源: 单电源
工作温度: -40°C ~ 125°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
AD7273/AD7274
Rev. 0 | Page 3 of 28
SPECIFICATIONS
AD7274 SPECIFICATIONS
VDD = 2.35 V to 3.6 V, VREF = 2.35 V to VDD, fSCLK = 48 MHz, fSAMPLE = 3 MSPS, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
B Grade1
Unit2
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 1 MHz sine wave
Signal-to-Noise + Distortion (SINAD)3
68
dB min
Signal-to-Noise Ratio (SNR)
69.5
dB min
Total Harmonic Distortion (THD)3
73
dB max
78
dB typ
Peak Harmonic or Spurious Noise (SFDR)3
80
dB typ
Intermodulation Distortion (IMD)
Second-Order Terms
82
dB typ
fa = 1 MHz, fb = 0.97 MHz
Third-Order Terms
82
dB typ
fa = 1 MHz, fb = 0.97 MHz
Aperture Delay
5
ns typ
Aperture Jitter
18
ps typ
Full Power Bandwidth
55
MHz typ
@ 3 dB
8
MHz typ
@ 0.1 dB
Power Supply Rejection Ratio (PSRR)
82
dB typ
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity3
±1
LSB max
Differential Nonlinearity3
±1
LSB max
Guaranteed no missed codes to 12 bits
Offset Error3
±3
LSB max
Gain Error3
±3.5
LSB max
Total Unadjusted Error (TUE)3
±3.5
LSB max
ANALOG INPUT
Input Voltage Range
0 to VREF
V
DC Leakage Current
±1
μA max
40°C to +85°C
±5.5
μA max
85°C to 125°C
Input Capacitance
42
pF typ
When in track
10
pF typ
When in hold
REFERENCE INPUT
VREF Input Voltage Range
1.4 to VDD
V min/V max
DC leakage Current
±1
μA max
Input Capacitance
20
pF typ
Input Impedance
32
Ω typ
LOGIC INPUTS
Input High Voltage, VINH
1.7
V min
2.35 V ≤ VDD ≤ 2.7 V
2
V min
2.7 V < VDD ≤ 3.6 V
Input Low Voltage, VINL
0.7
V max
2.35 V ≤ VDD < 2.7 V
0.8
V max
2.7 V ≤ VDD ≤ 3.6 V
Input Current, IIN
±1
μA max
Typically 10 nA, VIN = 0 V or VDD
Input Capacitance, CIN4
2
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDD 0.2
V min
ISOURCE = 200 μA, VDD = 2.35 V to 3.6 V
Output Low Voltage, VOL
0.2
V max
ISINK = 200 μA
Floating-State Leakage Current
±2.5
μA max
Floating-State Output Capacitance4
4.5
pF max
Output Coding
Straight (natural) binary
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