參數(shù)資料
型號(hào): AD7705(中文)
廠商: Analog Devices, Inc.
英文描述: 3 V/5 V, 1 Mw 2-/3-Channel 16-Bit, Sigma-Delta ADCs(完全差分輸入通道16位A/D轉(zhuǎn)換器)
中文描述: 3伏/ 5伏,1兆瓦2-/3-Channel 16位Σ-Δ模數(shù)轉(zhuǎn)換器(完全差分輸入通道16位的A / D轉(zhuǎn)換器)
文件頁數(shù): 6/35頁
文件大?。?/td> 652K
代理商: AD7705(中文)
==99-10-14==
P&S
ooá|′μ×ó1é· YóDT1
==35-6==
P &S
oo á|′μ×ó1é· YóDT1
μ :
ot±±ooêD×μèa· 15o
D :
ooêD70020D
óê±à:
430079
μ°:
( 86) ( 027£87493500 87493506
( 86) ( 027) 87491166, 87493497
P &S
í í :
http://www.p8s.com
Dé±í
Parameter
B Version
1
Units
Conditions/Comments
LOGIC OUTPUTS (Including MCLK OUT)
V
OL
, Output Low Voltage
V
OL
, Output Low Voltage
V
OH
, Output High Voltage
V
, Output High Voltage
Floating State Leakage Current
Floating State Output Capacitance
13
Data Output Coding
0.4
0.4
4
V
0.6
10
9
Binary
Offset Binary
V max
V max
V min
V min
A max
pF typ
I
SINK
= 800 A Except or MCLK OUT.
12
V
DD
= 5 V.
I
SINK
= 100 A Except or MCLK OUT.
12
V
DD
= 3 V.
I
SOURCE
= 200 A Except or MCLK OUT.
12
V
DD
= 5 V.
I
SOURCE
= 100 A Except or MCLK OUT.
12
V
DD
= 3 V.
Unipolar Mode
Bipolar Mode
SYSTEM CALIBRATION
Positive Full-Scale Calibration Limit
14
Negative Full-Scale Calibration Limit
14
Offset Calibration Limit
14
Input Span
15
(1.05 V
REF
)/GAIN
(1.05 V
REF
)/GAIN
(1.05 V
REF
)/GAIN
(0.8 V
REF
(2.1 V
REF
)/GAIN
V max
V max
V max
V min
V max
GAIN Is the Selected PGA Gain (1 to 128)
GAIN Is the Selected PGA Gain (1 to 128)
GAIN Is the Selected PGA Gain (1 to 128)
GAIN Is the Selected PGA Gain (1 to 128)
GAIN Is the Selected PGA Gain (1 to 128)
POWER REQUIREMENTS
V
DD
Voltage
Power Supply Currents
16
+2.7 to +3.3
V min to V max
For Specified Performance
Digital I/Ps = 0 V or V
DD
. External MCLK IN and
CLK DIS = 1
BUF Bit = 0. f
CLKIN
= 1 MHz. Gains of 1 to 128
BUF Bit = 1. f
CLKIN
= 1 MHz. Gains of 1 to 128
BUF Bit = 0. f
CLKIN
= 2.4576 MHz. Gains of 1 to 4
BUF Bit = 0. f
CLKIN
= 2.4576 MHz. Gains of 8 to 128
BUF Bit = 1. f
CLKIN
= 2.4576 MHz. Gains of 1 to 4
BUF Bit = 1. f
= 2.4576 MHz. Gains of 8 to 128
For Specified Performance
Digital I/Ps = 0 V or V
DD
. External MCLK IN and
CLK DIS = 1.
BUF Bit = 0. f
CLKIN
= 1 MHz. Gains of 1 to 128
BUF Bit = 1. f
CLKIN
= 1 MHz. Gains of 1 to 128
BUF Bit = 0. f
CLKIN
= 2.4576 MHz. Gains of 1 to 4
BUF Bit = 0. f
CLKIN
= 2.4576 MHz. Gains of 8 to 128
BUF Bit = 1. f
CLKIN
= 2.4576 MHz. Gains of 1 to 4
BUF Bit = 1. f
= 2.4576 MHz. Gains of 8 to 128
External MCLK IN = 0 V or V
DD
. V
DD
= 5 V. See Figure 9
External MCLK IN = 0 V or V
DD
. V
DD
= 3 V
0.32
0.6
0.4
0.6
0.7
1.1
+4.75 to +5.25
mA max
mA max
mA max
mA max
mA max
mA max
V min to V max
V
DD
Voltage
Power Supply Currents
16
0.45
0.7
0.6
0.85
0.9
1.3
16
8
See Note 19
mA max
mA max
mA max
mA max
mA max
mA max
A max
A max
dB typ
Standby Power-Down) Current
17
Power Supply Rejection
18
×¢êí£o
1. B
è· §a
-40
~+85
2.
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4.
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5.
yú±êèó2 °üà¨á±êèó2£¨
Zero-Scale Error
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6.
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D §aú±êèó2
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9.
12£μ1· §£o£aêèμ1231y
V
DD
+30mV
£2μíóú
GND-30mV
£μ1μíóú
GND-200mV
ê±£
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10.
aà 3μ
AIN
£¨
+
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AD7705
à′μ£ê àóú
AIN
£¨
-
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ê
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V
DD
+30mV,
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