參數資料
型號: AD7861AP
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: 11-Bit Resolution Simultaneous Sampling A/D Converter
中文描述: 7-CH 11-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQCC44
封裝: PLASTIC, LCC-44
文件頁數: 2/6頁
文件大?。?/td> 95K
代理商: AD7861AP
AD7861–SPECIFICATIONS
Parameter
AD7861AP
Units
Conditions/Comments
DC ACCURACY
Resolution
Relative Accuracy
Differential Nonlinearity
Bias Offset Error
Bias Offset Error Match
Full-Scale Error
Full-Scale Error Match
11
±
2
±
2.5
±
9
4
±
13
4
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
Twos Complement Data Format
Integral Nonlinearity
Any Channel
Between Channels
Any Channel
Between Channels
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Channel-to-Channel Isolation
M1 = 0
M1 = 1
60
–60
–60
dB min
dB max
dB max
f
IN
= 1 kHz Sine Wave, f
SAMPLE
= 75 kHz
f
IN
= 1 kHz Sine Wave, f
SAMPLE
= 75 kHz
f
IN
= 1 kHz Sine Wave, f
SAMPLE
= 75 kHz
–58
–53
dB max
dB max
1 kHz Sine Wave Applied to Unselected Channels
1 kHz Sine Wave Applied to Unselected Channels
REFERENCE
Input Voltage Range (REF IN)
Input Current
Onboard Reference Output (REF OUT)
Reference Tolerance
Reference Drive Capability
2.5
50
2.5
±
5
±
100
V
μ
A max
V
%
μ
A max
SAMPLE-AND-HOLD
Acquisition Time
Aperture Delay Time
Aperture Delay Time Match
Droop Rate
1.6
200
20
5
μ
s
ns max
ns max
mV/ms max
20 CLK Cycles @ 12.5 MHz
LOGIC
Input High Voltage (V
IH
)
Input Low Voltage (V
IL
)
Input Leakage Current
Input Capacitance
(V
OH
)
(V
OL
)
Three-State Leakage Current
2
0.8
1
20
4.5
0.4
1
V min
V max
μ
A max
pF typ
V min
V max
μ
A max
I
SOURCE
Current = 20
μ
A, V
DD
= 5 V
I
SINK
Current = 400
μ
A, V
DD
= 5 V
CONVERSION RATE
Conversion Time/Channel
40
CLK Cycles
CONVST
Pulsewidth
2
CLK Cycles min
ANALOG INPUTS
Nominal Input Level
Input Current
Input Capacitance
0–5
100
10
V
μ
A
pF
VIN1, VIN2, VIN3, AUX0–AUX3
SYSTEM CLOCK
6.25–12.5
MHz
POWER REQUIREMENTS
V
DD
I
DD
5
10
V dc
mA max
REV. B
– 2 –
(V
DD
= 5 V 5%; T
A
= –40 C to +85 C; REFIN = 2.5 V; Ext CLK @ 12.5 MHz, unless
otherwise noted)
相關PDF資料
PDF描述
AD7861 11-Bit Resolution Simultaneous Sampling A/D Converter(同時采樣11位A/D轉換器)
AD7862 Simultaneous Sampling Dual 250 kSPS 12-Bit ADC(同時采樣250kSPS 12位雙A/D轉換器)
AD7863 Simultaneous Sampling Dual 175 kSPS 14-Bit ADC(同時采樣175kSPS14位雙A/D轉換器)
AD7864 Four Channel, Simultaneous Sampling, High Speed, 12-Bit ADC(四通道,同時采樣高速12位A/D轉換器)
AD7865 Simultaneous Sampling, Fast, 14-Bit ADC(四通道,同時采樣,高速,14位A/D轉換器)
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