參數(shù)資料
型號(hào): AD7861AP
廠商: Analog Devices Inc
文件頁數(shù): 2/6頁
文件大?。?/td> 0K
描述: IC ADC 11BIT 4CH 44-PLCC
標(biāo)準(zhǔn)包裝: 27
位數(shù): 11
采樣率(每秒): 28.6k
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 50mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 44-PLCC(16.59x16.59)
包裝: 管件
輸入數(shù)目和類型: 7 個(gè)單端,單極
AD7861–SPECIFICATIONS
Parameter
AD7861AP
Units
Conditions/Comments
DC ACCURACY
Resolution
11
Bits
Twos Complement Data Format
Relative Accuracy
±2
LSB max
Integral Nonlinearity
Differential Nonlinearity
±2.5
LSB max
Bias Offset Error
±9
LSB max
Any Channel
Bias Offset Error Match
4
LSB max
Between Channels
Full-Scale Error
±13
LSB max
Any Channel
Full-Scale Error Match
4
LSB max
Between Channels
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)
60
dB min
fIN = 1 kHz Sine Wave, fSAMPLE = 75 kHz
Total Harmonic Distortion (THD)
–60
dB max
fIN = 1 kHz Sine Wave, fSAMPLE = 75 kHz
Peak Harmonic or Spurious Noise
–60
dB max
fIN = 1 kHz Sine Wave, fSAMPLE = 75 kHz
Channel-to-Channel Isolation
M1 = 0
–58
dB max
1 kHz Sine Wave Applied to Unselected Channels
M1 = 1
–53
dB max
1 kHz Sine Wave Applied to Unselected Channels
REFERENCE
Input Voltage Range (REF IN)
2.5
V
Input Current
50
A max
Onboard Reference Output (REF OUT)
2.5
V
Reference Tolerance
±5%
Reference Drive Capability
±100
A max
SAMPLE-AND-HOLD
Acquisition Time
1.6
s
20 CLK Cycles @ 12.5 MHz
Aperture Delay Time
200
ns max
Aperture Delay Time Match
20
ns max
Droop Rate
5
mV/ms max
LOGIC
Input High Voltage (VIH)
2
V min
Input Low Voltage (VIL)
0.8
V max
Input Leakage Current
1
A max
Input Capacitance
20
pF typ
(VOH)
4.5
V min
ISOURCE Current = 20
A, VDD = 5 V
(VOL)
0.4
V max
ISINK Current = 400
A, VDD = 5 V
Three-State Leakage Current
1
A max
CONVERSION RATE
Conversion Time/Channel
40
CLK Cycles
CONVST
Pulsewidth
2
CLK Cycles min
ANALOG INPUTS
Nominal Input Level
0–5
V
VIN1, VIN2, VIN3, AUX0–AUX3
Input Current
100
A
Input Capacitance
10
pF
SYSTEM CLOCK
6.25–12.5
MHz
POWER REQUIREMENTS
VDD
5V dc
IDD
10
mA max
REV. B
– 2 –
(VDD = 5 V
5%; TA = –40 C to +85 C; REFIN = 2.5 V; Ext CLK @ 12.5 MHz, unless
otherwise noted)
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