(VDD = 5 V 5%, AGND = DGND = 0" />
參數(shù)資料
型號(hào): AD7865ASZ-2
廠商: Analog Devices Inc
文件頁(yè)數(shù): 12/19頁(yè)
文件大?。?/td> 0K
描述: IC ADC 14BIT 4CHAN 5V 44MQFP
標(biāo)準(zhǔn)包裝: 1
位數(shù): 14
采樣率(每秒): 350k
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 160mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應(yīng)商設(shè)備封裝: 44-MQFP(10x10)
包裝: 托盤
輸入數(shù)目和類型: 4 個(gè)差分,單極
REV. B
–2–
AD7865–SPECIFICATIONS
(VDD = 5 V
5%, AGND = DGND = 0 V, VREF = Internal. Clock = Internal; all specifi-
cations TMIN to TMAX unless otherwise noted.)
Parameter
A, Y Versions
1
B Version
Unit
Test Conditions/Comments
SAMPLE AND HOLD
–3 dB Full Power Bandwidth
3
MHz typ
Aperture Delay
20
ns max
Aperture Jitter
50
ps typ
Aperture Delay Matching
4
ns max
DYNAMIC PERFORMANCE
2
fIN = 100 kHz, fS = 350 kSPS
Signal to (Noise + Distortion) Ratio
3
@ 25
°C
AD7865-1, AD7865-3
78
dB min
Typically 80 dB
AD7865-2
77
dB min
Typically 78 dB
TMIN to TMAX
AD7865-1, AD7865-3
77
dB min
AD7865-2
76
dB min
Total Harmonic Distortion
3, 4
–86
dB max
Peak Harmonic or Spurious Noise
3, 4
–86
dB max
Intermodulation Distortion
3
fa = 49 kHz, fb = 50 kHz
2nd Order Terms
–95
dB typ
3rd Order Terms
–95
dB typ
Channel-to-Channel Isolation
3, 5
–88
dB max
fIN = 50 kHz Sine Wave
DC ACCURACY
Any Channel
Resolution
14
Bits
Relative Accuracy (INL)
3
±2
±1.5
LSB max
Typically 0.6 LSBs
Differential Nonlinearity (DNL)
3
±1
LSB max
No Missing Codes Guaranteed
AD7865-1
Positive Gain Error
3
±10
±8
LSB max
Typically
±2 LSBs
Positive Gain Error Match
3
8
LSB max
Typically 2 LSBs
Negative Gain Error
3
±10
±8
LSB max
Typically
±2 LSBs
Negative Gain Error Match
3
8
LSB max
Typically 2 LSBs
Bipolar Zero Error
±12
±10
LSB max
Typically
±2 LSBs
Bipolar Zero Error Match
6
LSB max
Typically 1.5 LSBs
AD7865-2
Positive Gain Error
3
±16
LSB max
Typically
±2 LSBs
Positive Gain Error Match
3
8
LSB max
Typically 2 LSBs
Unipolar Offset Error
3
±10
LSB max
Typically
±2 LSBs
Unipolar Offset Error Match
3
10
LSB max
Typically 2 LSBs
AD7865-3
Positive Gain Error
3
±16
±14
LSB max
Typically
±6 LSBs
Positive Gain Error Match
3
8
LSB max
Typically 2 LSBs
Negative Gain Error
3
±16
±14
LSB max
Typically
±6 LSBs
Negative Gain Error Match
3
8
LSB max
Typically 2 LSBs
Bipolar Zero Error
±14
±12
LSB max
Typically
±5 LSBs
Bipolar Zero Error Match
8
6
LSB max
Typically 2 LSBs
ANALOG INPUTS
AD7865-1
Input Voltage Range
±5, ±10
Volts
Input Current
1, 1
mA max
VIN = –5 V and –10 V Respectively,
Typically 0.7 mA
AD7865-2
Input Voltage Range
0 V to 2.5 V,
0 V to 5 V
Volts
Input Current
10
A max
VIN = 2.5 V, 0 V to 2.5 V Range, Typ 1
A
1
mA max
VIN = 5 V, 0 V to 5 V Range, Typ 0.7 mA
AD7865-3
Input Voltage Range
±2.5
Volts
Input Current
1
mA max
VIN = –2.5 V, Typically 0.7 mA
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