VDD = 2.7 V to 5.25 V, V
參數(shù)資料
型號(hào): AD7887WARMZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 18/24頁(yè)
文件大?。?/td> 0K
描述: IC ADC 12BIT 2CH SRL 8-MSOP
設(shè)計(jì)資源: Software Calibrated, 1 MHz to 8 GHz, 70 dB RF Power Measurement System Using AD8318 (CN0150)
標(biāo)準(zhǔn)包裝: 50
位數(shù): 12
采樣率(每秒): 125k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 3.5mW
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 管件
輸入數(shù)目和類型: 2 個(gè)單端,單極
產(chǎn)品目錄頁(yè)面: 779 (CN2011-ZH PDF)
AD7887
Rev. D | Page 3 of 24
SPECIFICATIONS
VDD = 2.7 V to 5.25 V, VREF = 2.5 V, external/internal reference unless otherwise noted, fSCLK = 2 MHz, TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
B Version1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio (SNR)2, 3
71
dB typ
fIN = 10 kHz sine wave, fSAMPLE = 125 kSPS
Total Harmonic Distortion (THD)2
80
dB typ
fIN = 10 kHz sine wave, fSAMPLE = 125 kSPS
Peak Harmonic or Spurious Noise2
–80
80
dB typ
fIN = 10 kHz sine wave, fSAMPLE = 125 kSPS
Intermodulation Distortion (IMD)2
Second-Order Terms
80
dB typ
fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 125 kSPS
Third-Order Terms
80
dB typ
fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 125 kSPS
Channel-to-Channel Isolation2
80
dB typ
fIN = 25 kHz
Full-Power Bandwidth
2.5
MHz typ
@ 3 dB
DC ACCURACY
Any channel
Resolution
12
Bits
Integral Nonlinearity2
±2
±1
LSB max
Differential Nonlinearity2
±2
±1
LSB max
Guaranteed no missing codes to 11 bits (A Grade)
Offset Error2
±3
LSB max
VDD = 5 V, dual-channel mode
±4
LSB max
VDD = 3 V, dual-channel mode
±6
LSB typ
Single-channel mode
Offset Error Match2
0.5
LSB max
Gain Error2
±2
LSB max
Dual-channel mode
±1
LSB max
Single-channel mode, external reference
±6
LSB typ
Single-channel mode, internal reference
Gain Error Match2
2
LSB max
ANALOG INPUT
Input Voltage Ranges
0 to VREF
V
Leakage Current
±5
μA max
Input Capacitance
20
pF typ
REFERENCE INPUT/OUTPUT
REFIN Input Voltage Range
2.5/VDD
V min/max
Functional from 1.2 V
Input Impedance
10
kΩ typ
Very high impedance if internal reference disabled
REFOUT Output Voltage
2.45/2.55
V min/max
REFOUT Temperature Coefficient
±50
ppm/°C typ
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
VDD = 4.75 V to 5.25 V
2.1
V min
VDD = 2.7 V to 3.6 V
Input Low Voltage, VINL
0.8
V max
VDD = 2.7 V to 5.25 V
Input Current, IIN
±1
μA max
Typically 10 nA, VIN = 0 V or VDD
Input Capacitance, CIN4
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
ISOURCE = 200 μA
VDD 0.5
V min
VDD = 2.7 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
10
pF max
Output Coding
Straight (Natural) Binary
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