中文数据手册

‫ׯگ‬ԨĂ‫ࡼࠀگ‬
ᅏ՗‫ٷݣ‬ഗ
AD620
༬Ⴀ
૶থ཮
8
–IN
2
7 +VS
+IN
3
6
–VS
4
AD620
RG
OUTPUT
5 REF
཮1. 8ᆅগPDIP (N)ĂCERDIP (Q)ࢅSOIC (R)‫ހ‬ጎ
ׂ೗௮ຎ
AD620๟ᅃ੼‫ׯگ‬ԨĂߛ৛‫܈‬ᅏ՗‫ٷݣ‬ഗLjৈႴᄲᅃ߲ྔ
և‫ۉ‬ፆઠยዃሺᅮLjሺᅮ‫ྺྷݔ‬1዁10,000ăُྔLjAD620
֑ᆩ8ᆅগSOICࢅDIP‫ހ‬ጎLj؅٫ၭᇀ‫ݴ‬૬‫ۉ‬ୟยऺLjժ൐
ࠀࡼ߸‫)گ‬ፌ‫߾ٷ‬ፕ‫ୁۉ‬ৈ1.3 mA*Ljᅺܸ‫׉ݥ‬๢ࢇ‫ۉࠃ׾ۉ‬
तՍၻ๕)ईᇺ‫*ײ‬ᆌᆩă
AD620ਏᆶߛ৛‫)܈‬ፌ‫ݥٷ‬၍Ⴀ‫܈‬40 ppm*Ă‫گ‬฿ۙ‫ۉ‬უ)ፌ‫ٷ‬
50 μV*ࢅ‫گ‬฿ۙ೏ᅎ)ፌ‫ٷ‬0.6 μV/°C*༬ႠLj๟‫ۉ‬ጱ‫ߌدࢅ׹‬
ഗথ੨‫ڪ‬৛௢ຕ਍֑णဣཥ‫ڦ‬૙ၙኮ჋ăُྔLjAD620࣏
ਏᆶ‫گ‬ሯำĂ‫گ‬๼෇ೋዃ‫ࡼࠀگࢅୁۉ‬༬ႠLj๑ኮ‫׉ݥ‬๢
ࢇECGࢅ࿮‫ظ‬ეუ֪॔ᅏ‫ڪ‬ᅅଐᆌᆩă
‫ۉ‬ጱ‫׹‬
ECGࢅᅅଐᅏഗ
‫ߌد‬ഗথ੨
ຕ਍֑णဣཥ
߾ᄽࡗ‫ײ‬੦዆
‫ۉࠃ׾ۉ‬Սၻ๕ยԢ
ᆯᇀഄ๼෇प֑ᆩSuperβeta‫ت‬૙Ljᅺُ੗ᅜํ၄ፌ‫ٷ‬1.0
nA‫گڦ‬๼෇ೋዃ‫ୁۉ‬ăAD620ሞ1 kHz้ਏᆶ9 nV/√Hz‫گڦ‬
๼෇‫ۉ‬უሯำLjሞ0.1 Hz዁10 Hz‫੻ټ‬ฉ‫ڦ‬ሯำྺ0.28 μV‫ރރ‬
ኵLj๼෇‫ୁۉ‬ሯำྺ0.1pA/√HzLjᅺܸፕྺമዃ‫ٷݣ‬ഗ๑
ᆩၳࡕ࢔ࡻăAD620࣏‫׉ݥ‬๢ࢇ‫ܠ‬ୟްᆩᆌᆩLjഄ0.01%ॺ
૬้क़ྺ15 μsLjܸ൐‫ׯ‬Ԩ࢔‫گ‬Ljፁᅜํ၄௅ཚ‫ڢ‬ᅃ߲ᅏ՗‫ݣ‬
‫ٷ‬ഗ‫ڦ‬ยऺă
30,000
10,000
3 OP AMP
IN-AMP
(3 OP-07s)
RTI VOLTAGE NOISE
(0.1 – 10Hz) (μV p-p)
1,000
20,000
15,000
AD620A
10,000
RG
TYPICAL STANDARD
BIPOLAR INPUT
IN-AMP
100
G = 100
10
AD620 SUPERβETA
BIPOLAR INPUT
IN-AMP
1
5,000
0
5
10
SUPPLY CURRENT (mA)
15
20
཮2. ෙሏ‫ݴݣ‬૬ᅏ՗‫ٷݣ‬ഗยऺᇑAD620Բড
0.1
1k
10k
100k
1M
SOURCE RESISTANCE (Ω)
10M
100M
00775-0-003
25,000
00775-0-002
TOTAL ERROR, PPM OF FULL SCALE
1
TOP VIEW
ᆌᆩ
0
RG
00775-0-001
ᅟᇀ๑ᆩ
!
ሺᅮཚࡗᅃ߲ྔև‫ۉ‬ፆยዃ
!
! )ሺᅮ‫ྷݔ‬: 1዁10,000*
!
੻‫ۉ‬ᇸ‫ۉ‬უ‫)ྷݔ‬±2.3 V዁±18 V*
!
Ⴀీߛᇀ3ሏ‫ݴݣ‬૬ᅏ՗‫ٷݣ‬ഗยऺ
!
֑ᆩ8ᆅগDIPࢅSOIC‫ހ‬ጎ
!
‫ࡼࠀگ‬,ፌ‫߾ٷ‬ፕ‫ୁۉ‬1.3 mA
‫؜‬෥‫ڦ‬኱ୁႠీ)Bप*
!
๼෇฿ۙ‫ۉ‬უ: 50 μV(ፌ‫ٷ‬ኵ)
!
๼෇฿ۙ೏ᅎ: 0.6 μV/°C(ፌ‫ٷ‬ኵ)
!
๼෇ೋዃ‫ୁۉ‬: 1.0 nA(ፌ‫ٷ‬ኵ)
!
ࠌఇᅞ዆Բ: 100 dB(ፌၭኵ,G = 10)
‫گ‬ሯำ
!
๼෇‫ۉ‬უሯำ: 9 nV/√Hz (1 kHz)
0.28 μV‫ރރ‬ኵሯำ)0.1 Hz዁10 Hz*
‫؜‬෥‫ڦ‬঍ୁ༬Ⴀ
!
‫੻ټ‬: 120 kHz(G = 100)
0.01%ॺ૬้क़: 15 μs
཮3. ጺ‫ۉ‬უሯำᇑ႑ࡽᇸ‫ۉ‬ፆ‫࠲ڦ‬ဣ
Rev. G
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
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Tel: 781.329.4700
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Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
ADIዐ࿔Ӳຕ਍๮֩๟ᆈ࿔Ӳຕ਍๮֩‫ڦ‬ᅳ࿔Lj৤൩ଌ঴‫݋‬ᅳዐ੗ీ٪ሞ‫ڦ‬ᇕჾፇኯई‫݋‬ᅳ‫ٱ‬ဃLjADIփ‫݋ܔ‬ᅳዐ٪ሞ‫ֶڦ‬ᅴईᆯׂُิ‫ٱڦ‬ဃ޶ሴăසႴඓණඪࢆَᇕ‫ڦ‬ጚඓႠLj൩֖੊ADI
༵ࠃ‫ڦ‬ፌႎᆈ࿔Ӳຕ਍๮֩ă
AD620
ణ୤
रຍࡀ߭ ........................................................................................... 3
!
๼෇ԍࢺ ................................................................................ 16
ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ .............................................................................. 5
!
พೕ(RF)߅ඡ ........................................................................ 16
ࠌఇᅞ዆ ................................................................................ 17
ESDয়ߢ ................................................................................... 5
‫ۆ‬႙߾ፕ༬Ⴀ .................................................................................. 7
!
থ‫ ں‬......................................................................................... 17
߾ፕᇱ૙ ......................................................................................... 13
!
๼෇ೋዃ‫࣮ୁۉ‬ୟ .............................................................. 18
!
ሺᅮ჋ስ ................................................................................ 16
ྔႚ؅٫ ......................................................................................... 19
!
๼෇ᇑ๼‫؜‬฿ۙ‫ۉ‬უ .......................................................... 16
!
!
एጚᆅগ ................................................................................ 16
۩ࠔኸళ ................................................................................ 20
Ⴊ۩૦๏
2004౎12ሆ—Ⴊ۩ӲF዁Ⴊ۩ӲG
2003౎7ሆ—“ຕ਍๮֩”ٗႪ۩ӲEืप዁Ⴊ۩ӲF
߭๕߸ႎ .................................................................................... ཚೊ
Պड“༬Ⴀ”և‫!ݴ‬.............................................................................. 1
Ⴊ߀“༬Ⴀ”և‫!ݴ‬.............................................................................. 1
Ⴊ߀“रຍࡀ߭”և‫ ݴ‬...................................................................... 2
Ⴊ߀“ׂ೗௮ຎ”և‫ ݴ‬...................................................................... 1
ٗ“۩ࠔኸళ”ዐ෸‫أ‬AD620CHIPS ............................................. 4
Ⴊ߀“रຍࡀ߭”և‫ ݴ‬...................................................................... 3
෸‫ޮأ‬ཟӲቷೌ .............................................................................. 4
ሺेޮཟӲቷೌ .............................................................................. 4
߸࣑TPC 1–3 .................................................................................... 5
߸࣑཮4዁཮6 .................................................................................. 6
߸࣑TPC 12 ...................................................................................... 6
߸࣑཮15 ........................................................................................... 7
߸࣑TPC 30 ...................................................................................... 9
߸࣑཮33 ......................................................................................... 10
߸࣑TPC 31ࢅTPC 32 ................................................................... 10
߸࣑཮34ࢅ཮35 ............................................................................ 10
߸࣑཮4 ........................................................................................... 10
߸࣑཮37 ......................................................................................... 10
Ⴊ߀՗I ............................................................................................ 11
Ⴊ߀՗3 ........................................................................................... 13
Ⴊ߀཮6ࢅ཮7 ................................................................................ 12
Ⴊ߀཮41ࢅ཮42 ............................................................................ 14
Ⴊ߀཮8 ........................................................................................... 13
Ⴊ߀཮43 ......................................................................................... 15
Պड“๼෇ԍࢺ”և‫ ݴ‬.................................................................... 13
Ⴊ߀཮44 ......................................................................................... 17
ႎሺ཮9 ........................................................................................... 13
Ⴊ߀“๼෇ԍࢺ”և‫ ݴ‬.................................................................... 15
Ⴊ߀“RFথ੨”և‫ ݴ‬....................................................................... 14
෸‫཮أ‬9 ........................................................................................... 15
Պड“๼෇ೋዃ‫࣮ୁۉ‬ୟ”և‫ ݴ‬.................................................. 15
Ⴊ߀“พೕ)RF*߅ඡ”և‫ ݴ‬............................................................ 15
߸ႎ“ྔႚ؅٫”և‫ ݴ‬.................................................................... 16
Պड“๼෇ೋዃ‫࣮ୁۉ‬ୟ”և‫ ݴ‬.................................................. 17
ሞ“۩ࠔኸళ”ዐሺेAD620CHIPS ........................................... 19
Rev. G | Page 2 of 20
AD620
रຍࡀ߭
25°CĂVS = ±15 VĂRL = 2 kΩ้‫ۆڦ‬႙ኵLj༬՚ำ௽‫ྔأ‬ă
՗1
AD620A
֖ຕ
ሺᅮ
ሺᅮ‫ྷݔ‬
ሺᅮဃֶ2
G=1
G = 10
G = 100
G = 1000
ሺᅮ‫ݥ‬၍Ⴀ‫܈‬
G = 1–1000
G = 1–100
ሺᅮᇑ࿒‫࠲ڦ܈‬ဣ
฿ۙ‫ۉ‬უ
๼෇฿ۙLjVOSI
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
๼‫؜‬฿ۙLjVOSO
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
ችࢇ‫ڟ‬๼෇‫ڦ܋‬฿ۙ
ᇑ‫ۉ‬ᇸ‫࠲ڦ‬ဣ(PSR)
G=1
G = 10
G = 100
G = 1000
๼෇‫ୁۉ‬
๼෇ೋዃ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
๼෇฿ۙ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
๼෇
๼෇ፆੇ
ֶ‫ݴ‬
ࠌఇ
๼෇‫ۉ‬უ‫ྷݔ‬3
ඇ࿒‫ྷݔ܈‬
ඇ࿒‫ྷݔ܈‬
AD620B
ཉॲ
ፌၭኵ ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
G = 1 + (49.4 kΩ/RG)
1
10,000
VOUT = ±10 V
0.03 0.10
0.15 0.30
0.15 0.30
0.40 0.70
VOUT = −10 V዁+10 V
RL = 10 kΩ
10
40
RL = 2 kΩ
10
95
ፌၭኵ
‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
1
G=1
10
ሺᅮ >12
−50
(ችࢇ‫ڟ‬๼෇‫܋‬ጺဃֶ= VOSI + VOSO/G)
VS = ±5 V
30
125
዁ ± 15 V
VS = ±5 V
185
዁ ± 15 V
VS = ±5 V
0.3
1.0
዁ ± 15 V
VS = ±15 V
400
1000
VS = ± 5 V
1500
VS = ±5 V
2000
዁ ± 15 V
VS = ±5 V
5.0
15
዁ ± 15 V
10,000
ፌၭኵ
AD620S1
‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
1
‫ڇ‬࿋
10,000
0.01
0.10
0.10
0.35
0.02
0.15
0.15
0.50
0.03
0.15
0.15
0.40
0.10
0.30
0.30
0.70
%
%
%
%
10
10
40
95
10
10
40
95
ppm
ppm
10
−50
ppm/°C
ppm/°C
125
μV
225
μV
10
−50
15
50
30
85
0.1
0.6
0.3
1.0
μV/°C
200
500
750
1000
400
1000
1500
2000
μV
μV
μV
2.5
7.0
5.0
15
μV/°C
VS = ±2.3 V
዁ ±18 V
80
95
110
110
100
120
140
140
0.5
3.0
0.3
VS = ±2.3 V −VS + 1.9
዁ ±5 V
−VS + 2.1
VS = ± 5 V
−VS + 1.9
዁ ±18 V
−VS + 2.1
80
100
120
120
2.0
2.5
100
120
140
140
0.5
3.0
0.3
1.0
1.5
80
95
110
110
1.0
1.5
100
120
140
140
0.5
8.0
0.3
0.5
0.75
1.5
1.5
8.0
10||2
10||2
10||2
10||2
10||2
10||2
dB
dB
dB
dB
2
4
1.0
2.0
nA
nA
pA/°C
nA
nA
pA/°C
+VS − 1.2
−VS + 1.9
+VS − 1.2
−VS + 1.9
+VS − 1.2
GΩ_pF
GΩ_pF
V
+VS − 1.3
+VS − 1.4
−VS + 2.1
−VS + 1.9
+VS − 1.3
+VS − 1.4
−VS + 2.1
−VS + 1.9
+VS − 1.3
+VS − 1.4
V
V
+VS − 1.4
−VS + 2.1
+VS + 2.1
−VS + 2.3
+VS − 1.4
V
Rev. G | Page 3 of 20
AD620
AD620A
֖ຕ
ࠌఇᅞ዆ԲLj
DC዁60 HzLj
1 kΩ‫ݥ‬਩࢚႑ࡽᇸ
G=1
G = 10
G = 100
G = 1000
๼‫؜‬
๼‫؜‬Ӧ‫ޗ‬
ཉॲ
ඇ࿒‫ྷݔ܈‬
VS = ±5 V
዁ ± 18 V
ඇ࿒‫ྷݔ܈‬
‫܌‬ୟ‫ୁۉ‬
‫ۯ‬ༀၚᆌ
ၭ႑ࡽ-3 dB‫੻ټ‬
G=1
G = 10
G = 100
G = 1000
უӦ୲
0.01%ॺ૬้क़
G = 1–100
G = 1000
ሯำ
‫ۉ‬უሯำLj1 kHz
ፌၭኵ ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
VCM = 0 V ዁ ± 10 V
73
93
110
110
RL = 10 kΩ
VS = ±2.3 V
዁±5V
90
110
130
130
−VS +
1.1
−VS + 1.4
−VS + 1.2
−VS + 1.6
0.75
ፌၭኵ
‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
80
100
120
120
90
110
130
130
ፌၭኵ
AD620S1
‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
73
93
110
110
90
110
130
130
‫ڇ‬࿋
dB
dB
dB
dB
+VS − 1.2
−VS + 1.1
+VS − 1.2
−VS + 1.1
+VS − 1.2
V
+VS − 1.3
+VS − 1.4
−VS + 1.4
−VS + 1.2
+VS − 1.3
+VS − 1.4
−VS + 1.6
−VS + 1.2
+VS − 1.3
+VS − 1.4
V
V
+VS – 1.5
−VS + 1.6
+VS – 1.5
–VS + 2.3
+VS – 1.5
±18
±18
±18
V
mA
1000
800
120
12
1.2
1000
800
120
12
1.2
1000
800
120
12
1.2
kHz
kHz
kHz
kHz
V/μs
15
150
μs
μs
0.75
0.75
10 Vօ৊
15
150
15
150
ችࢇ‫ڟ‬๼෇‫܋‬ጺሯำ= (e 2ni ) + (eno / G)2
๼෇Lj‫ۉ‬უሯำLjeni
๼‫؜‬Lj‫ۉ‬უሯำLjeno
RTILj0.1 Hz዁10 Hz
G=1
G = 10
G = 100–1000
‫ୁۉ‬ሯำ
0.1 Hz዁10 Hz
एጚ๼෇
R IN
IIN
‫ۉ‬უ‫ྷݔ‬
๼‫؜‬ሺᅮ
‫ۉ‬ᇸ
߾ፕ‫ۉ‬უ‫ྷݔ‬4
ৢༀ‫ୁۉ‬
AD620B
9
72
13
100
3.0
0.55
0.28
100
10
f = 1 kHz
20
50
VIN+, VREF = 0
−VS + 1.6
1 ± 0.0001
±2.3
VS = ±2.3 V
዁ ±18 V
ඇ࿒‫ྷݔ܈‬
‫ۨܮ‬࿒‫ྷݔ܈‬
-40዁+85
60
+VS − 1.6
0.9
±18
1.3
1.1
1.6
9
72
13
100
9
72
13
100
nV/√Hz
nV/√Hz
3.0
0.55
0.28
100
10
6.0
0.8
0.4
3.0
0.55
0.28
100
10
6.0
0.8
0.4
μV p-p
μV p-p
μV p-p
fA/√Hz
pA p-p
20
50
−VS + 1.6
1 ± 0.0001
±2.3
-40዁+85
1
ැႴ883B֪๬रຍࡀ߭Lj൩֖੊ADIࠅິਬᆩຕ਍๮֩ă
փԈઔྔև‫ۉ‬ፆRG‫ڦ‬ᆖၚă
3
ᅃୟ๼෇থ‫ں‬ăG = 1ă
4
ᇑᆩઠࡀۨPSR༬Ⴀ‫ۉڦ‬ᇸ‫ۉ‬უ‫ྷݔ‬၎ཞă
2
Rev. G | Page 4 of 20
60
+VS − 1.6
0.9
±18
1.3
1.1
1.6
20
50
60
+VS − 1.6
kΩ
μA
V
0.9
±18
1.3
V
mA
1.1
1.6
mA
−VS + 1.6
1 ± 0.0001
±2.3
-55዁+125
°C
AD620
ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ
՗2
֖ຕ
‫ۉ‬ᇸ‫ۉ‬უ
ాևࠀࡼ1
๼෇‫ۉ‬უ(ࠌఇ)
ֶ‫ݴ‬๼෇‫ۉ‬უ
๼‫܌؜‬ୟ‫׼‬Ⴤ้क़
٪‫ئ‬࿒‫(ྷݔ܈‬Q)
٪‫ئ‬࿒‫(ྷݔ܈‬N, R)
߾ፕ࿒‫ྷݔ܈‬
AD620 (A, B)
AD620 (S)
ᆅগ࿒‫ྷݔ܈‬
(10௱ࡰথ)
1
‫ۨܮ‬ኵ
±18 V
650 mW
±VS
25 V
࿄ۨ
−65°C ዁ +150°C
−65°C ዁ +125°C
ጀᅪLj‫؜ג‬ᅜฉ໯ଚ‫ڦ‬ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీ‫ڞ‬ዂഗॲᆦ৳
Ⴀ໦࣋ăኄኻ๟ഽۙ‫ۨܮڦ‬ኵLjփภतഗॲሞኄၵईඪࢆ
ഄ໲ཉॲူ‫؜ג‬Ԩरຍࡀ߭ኸՔ‫ీࠀڦ‬Ⴀ֡ፕă‫׊‬೺ሞਨ
‫ܔ‬ፌ‫ۨܮٷ‬ኵཉॲူ߾ፕࣷᆖၚഗॲ‫ڦ‬੗੍Ⴀă
−40°C ዁ +85°C
−55°C ዁ +125°C
300°C
ኍ‫ܔ‬੣ഘዐ‫ڦ‬ഗॲܸჾǖ
8ᆅগ໒ଙ‫ހ‬ጎǖθJA = 95°C
8ᆅগCERDIP‫ހ‬ጎǖθJA = 110°C
8ᆅগSOIC‫ހ‬ጎǖθJA = 155°C
ESDয়ߢ!
ESD(ৢ‫ߌ௺*ۉݣۉ‬ഗॲăৢ‫࢔ࢁۉۉ‬ඹᅟሞට༹ࢅ֪๬ยԢฉેओLj੗ߛ‫ٳ‬4000 VLjժ੗ీሞுᆶ
ִਥ‫ڦ‬൧઄ူ‫ۉݣ‬ă৑࠶Ԩׂ೗ਏᆶጆᆩESDԍࢺ‫ۉ‬ୟLj‫ڍ‬ሞᇜ‫ీߛڟ‬ଉৢ‫้ۉݣۉ‬Lj੗ీࣷ݀ิ
ᆦ৳Ⴀഗॲ໦࣋ăᅺُLjॺᅱ֑ൽ๢‫ڦړ‬ESD‫ٯݔݞ‬แLjᅜՆ௨ഗॲႠీူইईࠀీෟ฿ă
Rev. G | Page 5 of 20
00775-0-004
AD620
཮4. ޮཟӲቷೌă཮๖؅٫‫ڇ‬࿋ǖᆈ٫ࢅ)ࡹ௝*ă
ፌႎ؅٫႑တ൩૴ဣၨ๳ևோă
Rev. G | Page 6 of 20
AD620
‫ۆ‬႙߾ፕ༬Ⴀ
(25°CLjVS = ±15 VLjRL = 2 kΩ้, ༬՚ำ௽‫ྔأ‬ă)
2.0
50
1.5
40
INPUT BIAS CURRENT (nA)
PERCENTAGE OF UNITS
SAMPLE SIZE = 360
30
20
10
1.0
+IB
–I B
0.5
0
–0.5
–1.0
0
40
80
INPUT OFFSET VOLTAGE (μV)
175
00775-0-008
–40
5
00775-0-009
–80
100k
00775-0-010
0
00775-0-005
–1.5
–2.0
–75
–25
25
75
TEMPERATURE (°C)
125
཮8. ๼෇ೋዃ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ
཮5. ๼෇฿ۙ‫ۉ‬უ‫ۆڦ‬႙‫ݴ‬ք཮
2.0
50
CHANGE IN OFFSET VOLTAGE (μV)
SAMPLE SIZE = 850
PERCENTAGE OF UNITS
40
30
20
0
–1200
–600
0
600
1200
INPUT BIAS CURRENT (pA)
00775-0-006
10
1.5
1.0
0.5
0
0
1
2
3
WARM-UP TIME (Minutes)
4
཮9. ๼෇฿ۙ‫ۉ‬უՎࣅᇑᇨԢ้क़‫࠲ڦ‬ဣ
཮6. ๼෇ೋዃ‫ۆڦୁۉ‬႙‫ݴ‬ք཮
1000
50
SAMPLE SIZE = 850
GAIN = 1
VOLTAGE NOISE (nV/ Hz)
30
20
10
100
GAIN = 10
10
GAIN = 100, 1,000
GAIN = 1000
BW LIMIT
0
–400
–200
0
200
INPUT OFFSET CURRENT (pA)
400
1
00775-0-007
PERCENTAGE OF UNITS
40
1
཮7. ๼෇฿ۙ‫ۆڦୁۉ‬႙‫ݴ‬ք཮
10
100
1k
FREQUENCY (Hz)
10k
཮10. ‫ۉ‬უሯำ೷௢‫܈‬ᇑೕ୲‫࠲ڦ‬ဣ (G = 1−1000)
Rev. G | Page 7 of 20
AD620
10
1
10
100
FREQUENCY (Hz)
1000
00775-0-014
100
00775-0-011
CURRENT NOISE (fA/ Hz)
1000
཮11. ‫ୁۉ‬ሯำ೷௢‫܈‬ᇑೕ୲‫࠲ڦ‬ဣ
཮14. 0.1 Hz዁10 Hz‫ୁۉ‬ሯำ(5 pA/ਗ਼‫)܈‬
TOTAL DRIFT FROM 25°C TO 85°C, RTI (μV)
10,000
FET INPUT
IN-AMP
1000
AD620A
100
10
1k
10k
100k
1M
SOURCE RESISTANCE (Ω)
10M
00775-0-015
TIME (1 SEC/DIV)
00775-0-012
RTI NOISE (2.0μV/DIV)
100,000
཮15. ጺ೏ᅎᇑ႑ࡽᇸፆੇ‫࠲ڦ‬ဣ
཮12. 0.1 Hz዁10 Hz RTI‫ۉ‬უሯำ(G = 1)
160
140
RTI NOISE (0.1μV/DIV)
120
G = 1000
G = 100
G = 10
CMR (dB)
100
G=1
80
60
40
0
0.1
཮13. 0.1 Hz዁10 Hz RTI‫ۉ‬უሯำ (G = 1000)
1
10
100
1k
FREQUENCY (Hz)
10k
100k
1M
཮16. ‫ۆ‬႙CMRᇑೕ୲‫࠲ڦ‬ဣ(RTILjଭ዁1 kΩ‫ݥ‬਩࢚႑ࡽᇸ)
Rev. G | Page 8 of 20
00775-0-016
00775-0-013
TIME (1 SEC/DIV)
20
AD620
180
35
160
30
G = 10, 100, 1000
G = 100
80
G = 10
60
G=1
1
10
100
1k
FREQUENCY (Hz)
10k
100k
10
1M
0
G = 1000
1k
10k
100k
FREQUENCY (Hz)
཮17. ኟPSRᇑೕ୲‫࠲ڦ‬ဣ(RTILjG = 1−1000)
160
–0.5
INPUT VOLTAGE LIMIT (V)
(REFERRED TO SUPPLY VOLTAGES)
+VS –0.0
140
PSR (dB)
120
100
G = 1000
80
G = 100
60
G = 10
G=1
10
100
1k
FREQUENCY (Hz)
10k
100k
1M
00775-0-018
40
1
–1.0
–1.5
+1.5
+1.0
+0.5
–VS +0.0
1000
5
10
15
SUPPLY VOLTAGE ± Volts
20
20
OUTPUT VOLTAGE SWING (V)
(REFERRED TO SUPPLY VOLTAGES)
+VS –0.0
100
10
1
1k
10k
100k
FREQUENCY (Hz)
1M
10M
00775-0-019
GAIN (V/V)
0
཮21. ๼෇‫ۉ‬უ‫ྷݔ‬ᇑ‫ۉ‬ᇸ‫ۉ‬უ‫࠲ڦ‬ဣ(G = 1)
཮18. ޶PSRᇑೕ୲‫࠲ڦ‬ဣ(RTILjG = 1−1000)
0.1
100
1M
཮20. ‫ٷ‬႑ࡽೕ୲ၚᆌ
180
20
0.1
G = 100
00775-0-021
20
0.1
15
5
00775-0-017
40
G=1
20
00775-0-022
PSR (dB)
100
25
00775-0-020
G = 1000
120
BW LIMIT
OUTPUT VOLTAGE (V p-p)
140
–0.5
RL = 2kΩ
–1.5
+1.5
RL = 2kΩ
+1.0
RL = 10kΩ
+0.5
–VS +0.0
཮19. ሺᅮᇑೕ୲‫࠲ڦ‬ဣ
RL = 10kΩ
–1.0
0
5
10
15
SUPPLY VOLTAGE ± Volts
཮22. ๼‫ۉ؜‬უӦ‫ޗ‬ᇑ‫ۉ‬ᇸ‫ۉ‬უ‫࠲ڦ‬ဣ(G = 10)
Rev. G | Page 9 of 20
$'
.... .... .... .... .... .... .... .... .... ....
VS = ±15V
G = 10
20
10
0
0
100
1k
LOAD RESISTANCE (Ω)
10k
00775-0-026
.... .... .... .... .... .... .... .... .... ....
00775-0-023
OUTPUT VOLTAGE SWING (V p-p)
30
཮23. ๼‫ۉ؜‬უӦ‫ޗ‬ᇑ޶ሜፆੇ‫࠲ڦ‬ဣ
཮26. ‫ٷ‬႑ࡽၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 10Lj0.5 mV = 0.01%)
.... .... .... .... .... .... .... .... .... ....
.... .... .... .... .... .... .... .... .... ....
.... .... .... .... .... .... .... .... .... ....
00775-0-027
00775-0-024
.... .... .... .... .... .... .... .... .... ....
཮24. ‫ٷ‬႑ࡽஞ؋ၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 1Lj0.5 mV = 0.01%)
཮27. ၭ႑ࡽၚᆌ(G = 10LjRL = 2 kΩLjCL = 100 pF)
.... .... .... .... .... .... .... .... .... ....
.... .... .... .... .... .... .... .... .... ....
.... .... .... .... .... .... .... .... .... ....
཮25. ၭ႑ࡽၚᆌ(G = 1LjRL = 2 kΩLjCL = 100 pF)
00775-0-030
00775-0-025
.... .... .... .... .... .... .... .... .... ....
཮28. ‫ٷ‬႑ࡽၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 100Lj0.5 mV = 0.01%)
Rev. G | Page 10 of 20
AD620
20
.... .... .... .... .... .... .... .... ........
SETTLING TIME (μs)
15
TO 0.01%
TO 0.1%
10
00775-0-029
0
0
཮29. ၭ႑ࡽஞ؋ၚᆌ(G = 100LjRL = 2 kΩLjCL = 100 pF)
5
10
OUTPUT STEP SIZE (V)
15
20
00775-0-032
5
.... .... .... .... .... .... .... .... ........
཮32. ॺ૬้क़ᇑօ৊‫ٷ‬ၭ‫࠲ڦ‬ဣ(G = 1)
1000
SETTLING TIME (μs)
.... .... .... .... .... .... .... .... .... ....
100
10
1
1
10
100
1000
GAIN
཮33. 0.01%ॺ૬้क़ᇑሺᅮ‫࠲ڦ‬ဣ(օ৊‫ٷ‬ၭྺ10 V)
.... .... .... .... .... .... .... .... ........
.... .... .... .... .... .... .... .... .... ....
.... .... .... .... .... .... .... .... ........
.... .... .... .... .... .... .... .... .... ....
00775-0-031
00775-0-034
཮30. ‫ٷ‬႑ࡽၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 1000Lj0.5 mV = 0.01%)
཮34. ሺᅮ‫ݥ‬၍Ⴀ‫(܈‬G = 1LjRL = 10 kΩLj10 μV = 1 ppm)
཮31. ၭ႑ࡽஞ؋ၚᆌ(G = 1000LjRL = 2 kΩLjCL = 100 pF)
Rev. G | Page 11 of 20
00775-0-033
00775-0-030
.... .... .... .... .... .... .... .... .... ....
AD620
10kΩ *
INPUT
10V p-p
.... .... .... .... .... .... .... .... ........
1kΩ
10T
10kΩ
100k Ω
VOUT
+VS
1kΩ
2
100 Ω
7
1
G = 1000
G=1
AD620
G = 100 G = 10
.... .... .... .... .... .... .... .... ........
49.9Ω
499 Ω
5.49k Ω
5
00775-0-035
8
3
4
–VS
*ALL RESISTORS 1% TOLERANCE
཮35. ሺᅮ‫ݥ‬၍Ⴀ‫(܈‬G = 100LjRL = 10 kΩLj100 μV = 10 ppm)
཮37. ॺ૬้क़֪๬‫ۉ‬ୟ
.... .... .... .... .... .... .... .... ........
00775-0-036
.... .... .... .... .... .... .... .... ........
཮36. ሺᅮ‫ݥ‬၍Ⴀ‫(܈‬G = 1000LjRL = 10 kΩLj1 mV = 100 ppm)
Rev. G | Page 12 of 20
6
00775-0-037
11kΩ
AD620
߾ፕᇱ૙
I1
20μA
VB
I2
20μA
A1
๼෇ৗ༹࠶Q1ࢅQ2༵ࠃᅃୟߛ৛‫ܔݴֶ܈‬ມटႠ๼෇(཮
38)Ljཞ้ᆯᇀ֑ᆩSuperϐeta‫ت‬૙Ljᅺُ๼෇ೋዃ‫ୁۉ‬३ၭ
10Ԡă‫ݒ‬ઍ࣍ୟQ1-A1-R1ࢅQ2-A2-R2๑๼෇ഗॲQ1ࢅQ2
‫ڦ‬ण‫ۉ‬ट‫ୁۉ‬ԍ‫࢛ۨ׼‬Ljܸٗ੗ॽ๼෇‫ۉ‬უፕᆩᇀྔևሺ
ᅮยዃ‫ۉ‬ፆRGฉăኄᄣ৽ׂิକٗ๼෇዁A1/A2๼‫ֶڦ؜‬
‫ݴ‬ሺᅮLjഄऺ໙ࠅ๕ྺG = (R1 + R2)/RG + 1ă‫ڇ‬࿋ሺᅮ३݆
ഗA3ᆩઠၩ‫أ‬ඪࢆࠌఇ႑ࡽLjᅜइ‫ڥ‬ችࢇ‫ڟ‬REFᆅগ‫ۉ‬࿋
‫܋ڇڦ‬๼‫؜‬ă
A2
10kΩ
C2
C1
10kΩ
A3
R3
400Ω
R1
R2
Q1
Q2
RG
GAIN
SENSE
R4
400Ω
OUTPUT
10kΩ
REF
+IN
GAIN
SENSE
–VS
00775-0-038
– IN
10kΩ
཮38. AD620ᇱ૙๖ᅪ཮
AD620๟ᅃ੼‫ڇ‬ႊೌᅏ՗‫ٷݣ‬ഗLj֑ᆩঢ়‫ڦۆ‬ෙሏ‫߀ݣ‬৊
ยऺăཚࡗۙኝೌా‫ۉ‬ፆ‫ڦ‬ਨ‫ܔ‬ኵLjᆩࢽኻႴᅃ߲‫ۉ‬ፆՍ
੗ํ၄‫ܔ‬ሺᅮ‫ڦ‬৛ඓՊ‫(ײ‬G = 100้৛‫܈‬੗‫ٳ‬0.15%)ă‫ڇ‬ႊ
ೌ঳ࠓࢅघ࠼ৗᇶۙኝሎႹ‫ۉܔ‬ୟᇮॲ৊ႜჹ߭೅ದᇑ߶
ጷLjܸٗ੗ඓԍُ‫ۉ‬ୟԨวਏᆶ‫ߛڦ‬Ⴀీ༬Ⴀă
RGኵ࣏੗ਦۨമዃ‫ٷݣ‬ഗप‫ڞੵڦ‬ă‫ړ‬३ၭRGᅜइ‫ٷ߸ڥ‬
ሺᅮ้Lj޿ੵ‫ॷॽڞ‬ৎሺ‫ڟٷ‬๼෇ৗ༹࠶‫ڞੵڦ‬ăኄࣷ‫ټ‬
ઠෙ‫تࡻٷ‬ǖ(a)ਸ࣍ሺᅮ༵ืᅜ༵ࠃ߸‫ڦٷ‬Պ‫ײ‬ሺᅮLjٗ
ܸ३ၭᇑሺᅮ၎࠲‫ڦ‬ဃֶǗ(b)ሺᅮ‫੻ټ‬ओ(ᆯC1ĂC2ࢅമ
ዃ‫ٷݣ‬ഗੵ‫ڞ‬ਦۨ)ໜጣՊ‫ײ‬ሺᅮ༵ߛܸሺ‫ٷ‬Ljܸٗᆫࣅೕ
୲ၚᆌǗ(c)๼෇‫ۉ‬უሯำই዁9 nV/√HzLj໲ዷᄲᆯ๼෇ഗॲ
‫ڦ‬ण‫ۉ‬ट‫ࢅୁۉ‬एट‫ۉ‬ፆਦۨă
ాևሺᅮ‫ۉ‬ፆR1ࢅR2ᅙۙኝ዁ਨ‫ܔ‬ኵ24.7 kΩLjᅺُ૧ᆩᅃ
߲ྔև‫ۉ‬ፆՍ੗ํ၄‫ܔ‬ሺᅮ‫ڦ‬৛ඓՊ‫ײ‬ă
ሺᅮࠅ๕ྺǖ
G=
49.4 kΩ
RG =
RG
+1
49.4 kΩ
G−1
ጲ዆ᇑࠔச: ‫ۆ‬႙ൃ๕‫ۉ‬ୟᆌᆩဃֶᇨ໙
AD620༵ࠃᆫᇀ“ጲ዆”ෙሏ‫ݣ‬ᅏ՗‫ٷݣ‬ഗยऺ‫ڦ‬ႠీLjཞ
้ਏᆶডၭ‫ڦ‬؅٫Ăডณ‫ڦ‬ᇮॲࢅ‫گ‬10Ԡ‫߾ڦ‬ፕ‫ୁۉ‬ăሞ
཮ 39໯ ๖ ‫ ۆ ڦ‬႙ ᆌ ᆩ ዐ Lj ᄲ ൱ ሺ ᅮ ྺ 100Lj ሞ −40°C዁
+85°C‫߾ڦ‬ᄽ࿒‫ٷݣాྷݔ܈‬20 mV஢ଉ‫ൃײ‬๕‫ۉ‬ୟ๼‫؜‬ă
՗3ଚ‫؜‬କසࢆऺ໙߳ዖဃֶᇸ‫ۉܔ‬ୟ৛‫ڦ܈‬ᆖၚă
Rev. G | Page 13 of 20
AD620
൩ጀᅪLj‫ܔ‬ᇀጲ዆‫ۉ‬ୟLj๼෇‫ۉ‬უ฿ۙࢅሯำ‫ڦ‬OP07रຍ
ࡀ߭ᅙ‫ױ‬ᅜ√2ăኄ๟ᅺྺෙሏ‫ݣ‬႙‫ݴ‬૬ᅏ՗‫ٷݣ‬ഗᆶଇ߲
ሏ‫ݣ‬ሞഄ๼෇‫܋‬Ljܾኁ਩‫ܔ‬ጺ๼෇ဃֶᆶᆖၚă
࿮ஃᆩᇀࢆዖဣཥLjAD620‫ీۼ‬ᅜ߸‫ׯگ߸ࢅࡼࠀگ‬Ԩ༵
ࠃ߸ߛ‫ڦ‬৛‫܈‬ăሞ०‫ڦڇ‬ဣཥዐLjਨ‫ܔ‬৛‫ࢅ܈‬೏ᅎဃֶ၂
඗๟ፌዘᄲ‫ڦ‬ဃֶઠᇸăሞࡤᆶ዇ీ‫ت‬૙ഗ‫ڦ‬ডްሗဣཥ
ዐLjጲ‫ۯ‬ሺᅮ/ጲ‫ࡃۯ‬ଭዜ೺ॽၩ‫أ‬໯ᆶ‫ڦ‬ਨ‫ܔ‬৛‫ࢅ܈‬೏ᅎ
ဃֶLjৈାူሺᅮĂ‫ݥ‬၍Ⴀ‫ࢅ܈‬ሯำ‫ݴڦ‬Ր୲ဃֶLjᅺُ
੗ᅜइ‫ྜڥ‬ඇ14࿋৛‫܈‬ă
10V
R = 350Ω
00775-0-039
PRECISION BRIDGE TRANSDUCER
AD620A MONOLITHIC
INSTRUMENTATION
AMPLIFIER, G = 100
SUPPLY CURRENT = 1.3mA MAX
100Ω **
00775-0-040
R = 350Ω
10kΩ *
10kΩ **
REFERENCE
R = 350Ω
10kΩ *
OP07D
AD620A
OP07D
10kΩ **
OP07D
10kΩ *
10kΩ*
"HOMEBREW" IN-AMP, G = 100
*0.02% RESISTOR MATCH, 3ppm/°C TRACKING
**DISCRETE 1% RESISTOR, 100ppm/ °C TRACKING
SUPPLY CURRENT = 15mA MAX
00775-0-041
R = 350Ω
RG
499Ω
཮39. ጲ዆ᇑࠔச
՗3. ጲ዆ᇑࠔச‫ڦ‬ဃֶᇨ໙
ဃֶᇸ
ਨ‫ܔ‬৛‫(܈‬TA = 25°C)
๼෇฿ۙ‫ۉ‬უLjμV
๼‫؜‬฿ۙ‫ۉ‬უLjμV
๼෇฿ۙ‫ୁۉ‬LjnA
CMR, dB
85°C೏ᅎ
ሺᅮ೏ᅎLjppm/°C
๼෇฿ۙ‫ۉ‬უ೏ᅎLjμV/°C
๼‫؜‬฿ۙ‫ۉ‬უ೏ᅎLjμV/°C
‫ݴ‬Ր୲
ሺᅮ‫ݥ‬၍Ⴀ‫܈‬Lj஢ଉ‫ײ‬ppm
0.1 Hz዁10 Hz‫ۉ‬უሯำ
(‫ۆ‬႙ኵLjμV ‫ރރ‬ኵDž
ဃֶLj஢ଉ‫ײ‬ppm
AD620
ጲ዆
AD620‫ۉ‬ୟऺ໙
“ጲ዆”‫ۉ‬ୟऺ໙
125 μV/20 mV
1000 μV/100 mV/20 mV
2 nA ×350 Ω/20 mV
110 dB(3.16 ppm) ×5 V/20 mV
(150 μV × √2)/20 mV
((150 μV × 2)/100)/20 mV
(6 nA ×350 Ω)/20 mV
(0.02% Match × 5 V)/20 mV/100
6,250
500
18
791
10,607
150
53
500
ጺਨ‫ܔ‬ဃֶ
7,559
11,310
100 ppm/°C Track × 60°C
(2.5 μV/°C × √2 × 60°C)/20 mV
(2.5 μV/°C × 2 × 60°C)/100 mV/20 mV
3,600
3,000
450
6,000
10,607
150
ጺ೏ᅎဃֶ
7,050
16,757
40
14
54
14,663
40
27
67
28,134
(50 ppm + 10 ppm) ×60°C
1 μV/°C × 60°C/20 mV
15 μV/°C × 60°C/100 mV/20 mV
40 ppm
28 μV p-p/20 mV
40 ppm
(0.38 μV p-p × √2)/20 mV
ጺ‫ݴ‬Ր୲ဃֶ
ဃֶጺࢅ
G = 100, VS = ±15 V.
(໯ᆶဃֶ਩ྺፌၭኵ/ፌ‫ٷ‬ኵժችࢇ‫ڟ‬๼෇‫)܋‬
Rev. G | Page 14 of 20
AD620
5V
3kΩ
3kΩ
3kΩ
3kΩ
20kΩ
7
3
REF
8
AD620B
G = 100
499Ω
6
IN
10kΩ
5
1
ADC
4
2
20kΩ
1.7mA
AD705
AGND
0.6mA
MAX
0.10mA
00775-0-042
1.3mA
MAX
DIGITAL
DATA
OUTPUT
཮40. ֑ᆩ5 V‫ۉڇ‬ᇸࠃ‫ڦۉ‬უ૰֪॔ᅏ‫ۉ‬ୟ
უ૰֪ଉ
ᅅᆩECG
AD620‫أ‬କ੗ᆩᇀ‫ۉ‬ጱ‫ڪ׹‬Ⴙ‫ൃܠ‬๕‫ۉ‬ୟᆌᆩኮྔLj࣏༬
՚๢ࢇ֑ᆩ‫ۉگ‬უࠃ‫ۉٷڦۉ‬ፆუ૰‫ߌد‬ഗăሞኄၵᆌᆩ
ዐLjၭ؅٫ࢅ‫ࡼࠀگ‬༬ႠՎ‫े߸ڥ‬ዘᄲă
AD620ਏᆶ‫ୁۉگ‬ሯำ༬ႠLjᅺُ੗ᆩᇀ႑ࡽᇸ‫ۉ‬ፆ‫׉׉‬
ߛ‫ٳ‬1 MΩయ዁߸‫ڦٷ‬ECG֪॔ᅏ)཮41*ăAD620‫ۉࢅࡼࠀڦ‬
ᇸ‫ۉ‬უ਩੗࢔‫گ‬Ljժ൐֑ᆩবู੣क़‫ڦ‬8ᆅগྲ႙DIPࢅ
SOIC‫ހ‬ጎLjᅺܸ๟‫ۉࠃ׾ۉ‬๕ຕ਍ऻ୤ഗ‫ڦ‬ਨॅ჋ስă
཮40၂๖କᅃ߲3 kΩუ૰‫ߌد‬ഗ‫ൃۉ‬Lj໲֑ᆩ5 V‫ۉ‬ᇸࠃ‫ۉ‬Lj
‫ࡼࠀൃۉ‬ৈྺ1.7 mAăሺेAD620ࢅ࣐؋‫ݴ‬უഗࢫՍ੗‫ܔ‬႑
ࡽ৊ႜۙ૙Ljጺ‫ۉ‬ᇸ‫ୁۉ‬ৈ3.8 mAă
ၭ؅٫ࢅ‫ׯگ‬Ԩᆫ๞๑AD620‫ۉܔ‬უ๼‫؜‬უ૰‫ߌد‬ഗटਏ
ဌᆅ૰ăᆯᇀഄ‫گ‬ሯำࢅ‫گ‬೏ᅎ༬ႠLjᅺُ໲ᄺ๢ࢇኑ܏
Ⴀ࿮‫ظ‬ეუ֪ଉ‫ڪ‬ᆌᆩă
R1
10kΩ
R4
1MΩ
๢‫ړ‬჋ስ‫ۉ‬ඹC1‫ڦ‬ኵLjሶ੗๑ᆸ֨ൻ‫࣍ۯ‬ୟԍ‫׼‬࿘ۨăُ
‫ۉ‬ୟՂႷሺेਨᇹ‫ڪ‬๢‫ڦړ‬Ҿඇ‫ٯ‬แLjᅜՆ௨࣒ኁ੗ీ๴
‫ڟ‬ฅ࡞ă
+3V
PATIENT/CIRCUIT
PROTECTION/ISOLATION
C1
ُྔLjAD620‫گڦ‬ೋዃ‫ୁۉگࢅୁۉ‬ሯำ༬Ⴀᇑ‫ۉگ‬უሯ
ำ༬Ⴀ၎঳ࢇLj੗༵ߛ‫ۯ‬ༀ‫ྷݔ‬Ljඓԍइ‫ڦࡻ߸ڥ‬Ⴀీă
R3
24.9kΩ
R2
24.9kΩ
RG
8.25kΩ
AD620A
G=7
0.03Hz
HIGHPASS
FILTER
G = 143
OUTPUT
1V/mV
OUTPUT
AMPLIFIER
–3V
཮41. ᅅᆩECG֪॔ᅏ‫ۉ‬ୟ
Rev. G | Page 15 of 20
00775-0-043
AD705J
AD620
৛௢V-Iገ࣑ഗ
๼෇ᇑ๼‫؜‬฿ۙ‫ۉ‬უ
AD620ᇑᅃ߲ሏ໙‫ٷݣ‬ഗࢅଇ߲‫ۉ‬ፆ၎঳ࢇLjՍ੗ࠓ‫ׯ‬ᅃ
߲৛௢‫ୁۉ‬ᇸ)཮42*ă޿ሏ໙‫ٷݣ‬ഗྺएጚᆅগ༵ࠃ࣐
؋Ljᅜඓԍଆࡻ‫ࠌڦ‬ఇᅞ዆(CMR)ႠీăAD620‫ڦ‬๼‫ۉ؜‬
უVX‫؜‬၄ሞ‫ۉ‬ፆR1Ljࢫኁॽഄገ࣑‫ୁۉׯ‬ăُ‫ୁۉ‬ৈ३ඁ
ሏ໙‫ٷݣ‬ഗ‫ڦ‬๼෇ೋዃ‫ࢫୁۉ‬LjՍୁၠ޶ሜă
AD620‫گڦ‬ဃֶ੗ᅜࡃ঳ᇀଇ߲ઠᇸǖ๼෇ဃֶᇑ๼‫؜‬ဃ
ֶă๼‫؜‬ဃֶችࢇ‫ڟ‬๼෇‫้܋‬Ⴔ‫أ‬ᅜGăํाฉLjߛሺᅮ
้ᅜ๼෇ဃֶྺዷLj‫گ‬ሺᅮ้ᅜ๼‫؜‬ဃֶྺዷăߴۨሺᅮ
‫ڦ‬ጺVOSऺ໙සူǖ
ችࢇ‫ڟ‬๼෇‫(܋‬RTI)ጺဃֶ=๼෇ဃֶ+ (๼‫؜‬ဃֶ/G)
+VS
ችࢇ‫ڟ‬๼‫(܋؜‬RTO)ጺဃֶ=(๼෇ဃֶ × G)+๼‫؜‬ဃֶ
7
3
एጚᆅগ
8
+ VX –
AD620
RG
1
VIN–
R1
5
2
4
I
–VS
I L=
एጚᆅগ‫ۉ‬࿋ۨᅭଭ๼‫ۉ؜‬უăܸ൐‫޶ړ‬ሜփᇑဣཥഄᇆ
և‫ࠌݴ‬ၛ৛ඓ‫ۉں‬࿋้Ljएጚᆅগ‫ۉ‬࿋৽༬՚ᆶᆩǖᅃዖ
ၠ๼‫ࠃ༵؜‬৛ඓೋᅎ‫ۉ‬უ‫ڦ‬኱থ཰০LjඹႹ‫ۉྺྷݔ‬ᇸ‫ۉ‬
უᅜా2 Văྺକइ‫ڥ‬ፌॅ‫ࠌڦ‬ఇᅞ዆(CMR)Ljᆌ๑सิ‫ۉ‬
ፆԍ‫׼‬ፌၭă
6
Vx
R1
=
L
AD705
[(V IN+ ) – (V IN– )] G
R1
LOAD
00775-0-044
VIN+
཮42. ৛௢‫ۉ‬უ‫ୁۉ‬ገ࣑ഗ(߾ፕ‫ୁۉ‬1.8 mALj߾ፕ‫ۉ‬უ±3 V)
ሺᅮ჋ስ
AD620‫ڦ‬ሺᅮཚࡗ‫ۉ‬ፆRG৊ႜՊ‫ײ‬Ljईኁ߸৛ඓ‫ں‬ຫLjཚ
ࡗᆅগ1ᇑᆅগ8ኮक़٪ሞ‫ڦ‬ඪࢆፆੇ৊ႜՊ‫ײ‬ăAD620ኼ
ሞᆩ0.1%዁1%‫ۉ‬ፆ༵ࠃ৛ඓ‫ڦ‬ሺᅮă՗4ଚ‫؜‬କ߳ዖሺᅮ
໯ᄲ൱‫ڦ‬RGኵăጀᅪLj‫ܔ‬ᇀG = 1LjRGᆅগփ૶থ(RG = ∞)ă
‫ܔ‬ᇀඪᅪሺᅮLj੗ᆩူ๕ऺ໙RGǖ
RG =
49.4 kΩ
G −1
ྺ๑ሺᅮဃֶፌၭLjᆌՆ௨ׂิᇑRG‫ߛڦ૴ز‬सิ‫ۉ‬ፆǗ
ྺ ๑ ሺ ᅮ ೏ ᅎ ፌ ၭ Lj R G ᆌ ਏ ᆶ ‫ گ‬࿒ ‫ ܈‬ဣ ຕ TC) ၭ ᇀ 10
ppm/°C*֍ీइ‫ڥ‬ፌॅႠీă
๼෇ԍࢺ
AD620‫ڦ‬๼෇‫܋‬ದᆶ400 Ω‫૴ز‬ԋఈ‫ۉ‬ፆLj੗ᅜҾඇ੗੍‫ں‬
‫׶‬๴ፌߛ±15 Vई±60 mA‫ڦ‬๼෇ࡗሜຕၭ้ăُ༬Ⴀ๢ᆩᇀ
໯ᆶሺᅮतฉ‫ۉ‬Ă܏‫ײࡗۉ‬Ljሞ႑ࡽᇸᇑ‫ٷݣ‬ഗ֑ᆩփཞ
‫ۉ‬ᇸ‫ݴ‬՚ࠃ‫้ۉ‬ᆮഄዘᄲă‫ܔ‬ᇀ߸‫้ڦ׊‬क़Lj‫ୁۉ‬փᆌ‫ג‬
ࡗ6 mA (IIN ≤ VIN/400 Ω)ă‫ܔ‬ᇀ‫ۉ؜ג‬ᇸ‫ڦ‬๼෇ࡗሜLjॽ๼
෇ഭ࿋዁‫ۉ‬ᇸ)ᆩFD333ኮૌ‫گ‬ႅ୑ܾट࠶*੗ᅜই‫گ‬໯ᄲ
൱‫ۉڦ‬ፆኵLjܸٗइ‫ڥ‬ড‫ڦگ‬ሯำă
พೕ)RF*߅ඡ
໯ᆶᅏ՗‫ٷݣ‬ഗ‫ྔټܔࣷۼ‬ၭ႑ࡽ৊ႜኝୁăኄዖ߅ඡ੗
ీࣷ՗၄ྺডၭ‫ڦ‬኱ୁ‫ۉ‬უ฿ۙăߛೕ႑ࡽ੗ᅜཚࡗᅏ՗
‫ٷݣ‬ഗ๼෇‫گڦ܋‬ཚR-Cྪஏ୳‫أ‬ă཮43ຫ௽କኄዖದ
ዃă୳հഗߵ਍ᅜူ࠲ဣ๕‫ܔ‬๼෇႑ࡽेᅜ၌዆ǖ
FilterFreq DIFF =
՗4. ᄲ൱‫ڦ‬ሺᅮ‫ۉ‬ፆኵ
1%Քጚ՗
RGኵ(Ω)
49.9 k
12.4 k
5.49 k
2.61 k
1.00 k
499
249
100
49.9
ऺ໙‫ڟڥ‬
‫ڦ‬ሺᅮኵ
1.990
4.984
9.998
19.93
50.40
100.0
199.4
495.0
991.0
0.1%Քጚ՗
RGኵ(Ω)
49.3 k
12.4 k
5.49 k
2.61 k
1.01 k
499
249
98.8
49.3
ऺ໙‫ڟڥ‬
‫ڦ‬ሺᅮኵ
2.002
4.984
9.998
19.93
49.91
100.0
199.4
501.0
1,003.0
FilterFreq CM =
1
2 πR(2C D + C C )
1
2 πRC C
ഄዐCD ≥10CCă
CDᆖၚֶ‫ۯ‬႑ࡽăCCᆖၚࠌఇ႑ࡽăR × CC‫ڦ‬ඪࢆփ೅ದ਩
ࣷই‫گ‬AD620‫ڦ‬CMRR)ࠌఇᅞ዆Բ*ႠీăྺକՆ௨࿮ᅪዐ
ই‫گ‬CMRR-‫੻ټ‬ႠీLjႴඓԍCCԲCD዁ณၭᅃ߲ຕଉपă
CD:CCԲኵሁ‫ٷ‬Ljփ೅ದCC‫ڦ‬ᆖၚሁၭă
Rev. G | Page 16 of 20
AD620
+15V
+VS
CD
CC
100Ω
+IN
+
AD620
499Ω
–IN
AD648
–
VOUT
RG
100Ω
REF
AD620
VOUT
–VS
REFERENCE
1 0μ F
0.1μ F
–15V
00775-0-046
R
CC
00775-0-045
R
– INPUT
1 0μ F
0.1μ F
+ INPUT
–VS
཮44. ֶ‫ݴ‬ೡԸൻ‫ۯ‬ഗ
཮43. ᆩᇀ३ณRF߅ඡ‫ۉڦ‬ୟ
ࠌఇᅞ዆
+VS
ࠌఇᅞ዆(CMR)๟ᅏ՗‫ٷݣ‬ഗ‫ڦ‬ଇୟ๼෇݀ิ‫ڪ‬ଉՎࣅ้
‫ܔ‬๼‫ۉ؜‬უՎࣅ‫ڦ‬ଉ‫܈‬LjዮසAD620‫ڪ‬ᅏ՗‫ٷݣ‬ഗ‫ࠕీۼ‬
༵ࠃߛCMRăኄၵरຍࡀ߭ཚ‫׉‬ኍ‫ܔ‬ඇ‫ྷݔ‬๼෇‫ۉ‬უՎࣅ
ࢅ༬ۨ‫ݥ‬਩࢚႑ࡽᇸă
100Ω
RG
2
AD548
RG
2
AD620
VOUT
REFERENCE
+ INPUT
–VS
00775-0-047
ྺइ‫ڥ‬ፌॅCMRLjएጚᆅগᆌᇑ‫گ‬ፆੇ‫ۅ‬၎૶Ljժ൐ଇୟ
๼෇ኮक़‫ۉڦ‬ඹࢅ‫ۉ‬ፆֶᅴᆌԍ‫׼‬ፌၭăႹ‫ܠ‬ᆌᆩ‫ۼ‬૧ᆩ
ೡԸ‫ۉ‬મઠ৑੗ీই‫گ‬ሯำǗྺइ‫ڥ‬ፌॅ‫ڦ‬CMRໜೕ୲Վ
ࣅ‫ڦ‬ႠీLjᆌ‫ܔ‬ೡԸ৊ႜ๢‫ڦړ‬ൻ‫ۯ‬ăස཮44ࢅ཮45໯
๖Ljഄዐ‫ڦ‬ᆶᇸຕ਍‫ࢺݞ‬ದዃ੗߀฀঍ୁࠌఇᅞ዆Lj໲ཚ
ࡗ“ጲਉ”(bootstrapping)๼෇‫ۉ‬મೡԸ‫ۉڦ‬ඹLjܸٗ๑๼෇
ኮक़‫ۉڦ‬ඹփ೅ದই዁ፌ‫گ‬ă
– INPUT
཮45. ࠌఇೡԸൻ‫ۯ‬ഗ
থ‫ں‬
ᆯᇀAD620‫ڦ‬๼‫ۉ؜‬უ๟၎‫ܔ‬ᇀएጚᆅগฉ‫ۉڦ‬࿋ܸჾLj
ᅺُኻႴॽREFᆅগ૶዁၎ᆌ‫“ڦ‬ਆևথ‫”ں‬Ս੗঴ਦႹ‫ܠ‬
থ‫ں‬࿚༶ă
ྺକሞߛሯำຕጴ࣍ৣዐ߰૗‫ۉگ‬ೝఇె႑ࡽLjႹ‫ܠ‬ຕ਍
֑णᇮॲ‫ۼ‬ದᆶ‫ڦ܀ڇ‬ఇెথ‫ں‬ᆅগࢅຕጴথ‫ں‬ᆅগ)཮
46*ă֑ᆩᅃୟথ‫ں‬၍ࣷ࢔‫ݛ‬ՍLj‫ڍ‬๟Ljཚࡗ‫ۉ‬ୟথ‫ں‬၍ࢅ
PC၍ୟ‫ୁۉڦ‬੗ీࣷᆅഐຕӥࡹ‫ڦޚ‬ဃֶăᅺُᆌ༵ࠃ‫ݴ‬
ਸ‫ڦ‬থ‫࣮ں‬ୟLj๑‫ୁۅߌ௺ٗڥ‬዁ဣཥথ‫ୁۉڦں‬ፌၭă
ኄၵথ‫࣮ں‬ୟՂႷሞగ‫૶ۅ‬ሞᅃഐLjཚ‫׉‬ፌࡻሞADC‫ހ‬ጎ
ฉLjස཮46໯๖ă
ANALOG P.S.
+15V C –15V
0.1μ F
0.1μ F
DIGITAL P.S.
C +5V
1μ F 1μ F
1μ F
AD585
S/H
AD574A
ADC
཮46. एԨথ‫݆ݛں‬
Rev. G | Page 17 of 20
DIGITAL
DATA
OUTPUT
00775-0-048
+
AD620
AD620
๼෇ೋዃ‫࣮ୁۉ‬ୟ
+VS
– INPUT
๼෇ೋዃ‫ୁۉ‬๟ኸ๑‫ٷݣ‬ഗ‫ڦ‬๼෇ৗ༹࠶ೋዃ໯ՂႴ‫ۉڦ‬
ୁăኄၵ‫ୁۉ‬ՂႷਏᆶ኱থ‫࣮ݓ‬ୟ০ăᅺُLj‫ٷݣړ‬Վუ
ഗई঍ୁ᳘ࢇᇸ‫”ۯޝ“ڪ‬๼෇ᇸ้Ljٗ߳๼෇‫܋‬዁‫ں‬ՂႷ
ᆶ኱ୁୟ০Ljස཮47Ă཮48ࢅ཮49໯๖ăᆶ࠲ᅏ՗‫ٷݣ‬ഗ
ᆌᆩ‫ܠ߸ڦ‬႑တLj൩֖੊“ᅏ՗‫ٷݣ‬ഗᆌᆩ߾‫ײ‬฾ኸళ”
)ADIࠅິ௨‫*ࠃ༵ݯ‬ă
AD620
RG
VOUT
LOAD
REFERENCE
+ INPUT
TO POWER
SUPPLY
GROUND
+VS
– INPUT
00775-0-050
–VS
཮48. ඤ‫ۉ‬౾๼෇ೋዃ‫ڦୁۉ‬থ‫࣮ں‬ୟ
RG
AD620
VOUT
+VS
– INPUT
LOAD
+ INPUT
REFERENCE
–VS
VOUT
LOAD
+ INPUT
཮47. Վუഗ᳘ࢇ๼෇ೋዃ‫ڦୁۉ‬থ‫࣮ں‬ୟ
100k Ω
100kΩ
REFERENCE
–VS
TO POWER
SUPPLY
GROUND
཮49. ঍ୁ᳘ࢇ๼෇ೋዃ‫ڦୁۉ‬থ‫࣮ں‬ୟ
Rev. G | Page 18 of 20
00775-0-051
TO POWER
SUPPLY
GROUND
AD620
00775-0-049
RG
AD620
ྔႚ؅٫
0.400 (10.16)
0.365 (9.27)
0.355 (9.02)
8
5
1
4
5.00 (0.1968)
4.80 (0.1890)
0.280 (7.11)
0.250 (6.35)
0.240 (6.10)
8
PIN 1
0.100 (2.54)
BSC
0.060 (1.52)
MAX
0.210
(5.33)
MAX
0.150 (3.81)
0.130 (3.30)
0.115 (2.92)
0.015
(0.38)
MIN
0.195 (4.95)
0.130 (3.30)
0.115 (2.92)
0.015 (0.38)
GAUGE
PLANE
SEATING
PLANE
0.022 (0.56)
0.018 (0.46)
0.014 (0.36)
4.00 (0.1574)
3.80 (0.1497) 1
0.325 (8.26)
0.310 (7.87)
0.300 (7.62)
0.430 (10.92)
MAX
0.005 (0.13)
MIN
0.014 (0.36)
0.010 (0.25)
0.008 (0.20)
1.27 (0.0500)
BSC
0.25 (0.0098)
0.10 (0.0040)
0.055 (1.40)
MAX
8
5
0.310 (7.87)
0.220 (5.59)
PIN 1
4
0.100 (2.54) BSC
0.320 (8.13)
0.290 (7.37)
0.405 (10.29) MAX
0.023 (0.58)
0.014 (0.36)
0.50 (0.0196)
× 45°
0.25 (0.0099)
8°
0.25 (0.0098) 0° 1.27 (0.0500)
0.40 (0.0157)
0.17 (0.0067)
቏༹(R-8)
཮๖؅٫‫ڇ‬࿋ǖࡹ௝ࢅ(ᆈ٫)
቏༹(N-8)
཮๖؅٫‫ڇ‬࿋ǖᆈ٫ࢅ)ࡹ௝*
0.200 (5.08)
0.125 (3.18)
1.75 (0.0688)
1.35 (0.0532)
཮52. 8ᆅগՔጚၭ႙‫ހ‬ጎ[SOIC]
཮50. 8ᆅগ໒ଙມଚ኱֭๕‫ހ‬ጎ[PDIP]
0.200 (5.08)
MAX
6.20 (0.2440)
5.80 (0.2284)
0.51 (0.0201)
COPLANARITY
SEATING 0.31 (0.0122)
0.10
PLANE
COMPLIANT TO JEDEC STANDARDS MS-001-BA
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS.
1
4
COMPLIANT TO JEDEC STANDARDS MS-012AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
0.070 (1.78)
0.060 (1.52)
0.045 (1.14)
0.005 (0.13)
MIN
5
0.060 (1.52)
0.015 (0.38)
0.150 (3.81)
MIN
SEATING
0.070 (1.78) PLANE
0.030 (0.76)
15°
0°
0.015 (0.38)
0.008 (0.20)
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
཮51. 8ᆅগ༩ٍມଚ኱֭๕‫ހ‬ጎ[CERDIP] (Q-8)
཮๖؅٫‫ڇ‬࿋ǖᆈ٫ࢅ(ࡹ௝)
Rev. G | Page 19 of 20
AD620
۩ࠔኸళ
႙ࡽ
AD620AN
AD620ANZ2
AD620BN
AD620BNZ2
AD620AR
AD620ARZ2
AD620AR-REEL
AD620ARZ-REEL2
AD620AR-REEL7
AD620ARZ-REEL72
AD620BR
AD620BRZ2
AD620BR-REEL
AD620BRZ-RL2
AD620BR-REEL7
AD620BRZ-R72
AD620ACHIPS
AD620SQ/883B
1
2
‫ހ‬ጎ჋ၜ1
N-8
N-8
N-8
N-8
R-8
R-8
13"ਝಎ
13"ਝಎ
7"ਝಎ
7"ਝಎ
R-8
R-8
13"ਝಎ
13"ਝಎ
7"ਝಎ
7"ਝಎ
஋ೌ
Q-8
࿒‫ྷݔ܈‬
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−40°C ዁ +85°C
−55°C ዁ +125°C
N = ໒ଙDIPǗQ = CERDIPǗR = SOICă
Z = ࿮തഗॲă
© 2004 Analog Devices, Inc. All rights reserved. Trademarks
and registered trademarks are the property of their respective owners.
C00775–0–12/04(G)
Rev. G | Page 20 of 20