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| 型號(hào)： | AD704JR-REEL |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Quad Picoampere Input Current Bipolar Op Amp |
| 中文描述： | 四Picoampere輸入電流雙極運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 397K |
| 代理商： | AD704JR-REEL |
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD704
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
High DC Precision
75
m
V max Offset Voltage
1
m
V/
8
C max Offset Voltage Drift
150 pA max Input Bias Current
0.2 pA/
8
C typical I
B
Drift
Low Noise
0.5
m
V p-p typical Noise, 0.1 Hz to 10 Hz
Low Power
600
m
A max Supply Current per Amplifier
Chips & MIL-STD-883B Processing Available
Available in Tape and Reel in Accordance
with EIA-481A Standard
Single Version: AD705, Dual Version: AD706
PRIMARY APPLICATIONS
Industrial/Process Controls
Weigh Scales
ECG/EKG Instrumentation
Low Frequency Active Filters
PRODUCT DESCRIPTION
The AD704 is a quad, low power bipolar op amp that has the
low input bias current of a BiFET amplifier but which offers a
significantly lower I
B
drift over temperature. It utilizes Super-
beta bipolar input transistors to achieve picoampere input bias
current levels (similar to FET input amplifiers at room tempera-
ture), while its I
B
typically only increases by 5
×
at +125
°
C
(unlike a BiFET amp, for which I
B
doubles every 10
°
C resulting
in a 1000
×
increase at +125
°
C). Furthermore the AD704
achieves 75
μ
V offset voltage and low noise characteristics of a
precision bipolar input op amp.
100
10
1
0.1
0.01
–55
+25
+125
TEMPERATURE –
°
C
T
B
TYPICAL JFET AMP
AD704T
Figure 1. Input Bias Current Over Temperature
CONNECTION DIAGRAMS
Quad Picoampere Input Current
Bipolar Op Amp
14-Pin Plastic DIP (N)
14-Pin Cerdip (Q) Packages
1
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
3
OUTPUT
–IN
–IN
OUTPUT
OUTPUT
–IN
–IN
OUTPUT
AD704
(TOP VIEW)
IN
+
IN
+
IN
+
IN
+
+V
S
–V
S
16-Pin SOIC
(R) Package
11
1
4
1
2
3
4
5
6
7
8
9
10
12
13
14
2
3
OUTPUT
–IN
–IN
OUTPUT
OUTPUT
–IN
–IN
OUTPUT
+V
S
–V
S
AD704
(TOP VIEW)
15
16
NC = NO CONNECT
NC
NC
IN
+
IN
+
IN
+
IN
+
20-Terminal LCC
(E) Package
3
2
1
20
19
18
17
16
15
14
9
10
O
11
N
12
O
13
–
4
5
6
7
8
+IN4
NC
–V
S
NC
+IN3
–
O
N
O
–
+IN1
NC
+V
S
NC
+IN2
–
AMP 1
AMP 2
AMP 4
AMP 3
NC = NO CONNECT
AD704
Since it has only 1/20 the input bias current of an AD OP07, the
AD704 does not require the commonly used “balancing”
resistor. Furthermore, the current noise is 1/5 that of the
AD OP07 which makes the AD704 usable with much higher
source impedances. At 1/6 the supply current (per amplifier) of
the AD OP07, the AD704 is better suited for today’s higher
density circuit boards and battery powered applications.
The AD704 is an excellent choice for use in low frequency
active filters in 12- and 14-bit data acquisition systems, in
precision instrumentation, and as a high quality integrator. The
AD704 is internally compensated for unity gain and is available
in five performance grades. The AD704J and AD704K are rated
over the commercial temperature range of 0
°
C to +70
°
C. The
AD704A and AD704B are rated over the industrial temperature
of –40
°
C to +85
°
C. The AD704T is rated over the military
temperature range of –55
°
C to +125
°
C and is available
processed to MIL-STD-883B, Rev. C.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD704KN | MB 15C 14#20 1#16 SKT PLUG |
| AD704TQ | MB 8C 8#20 PIN PLUG |
| AD704 | Quad Picoampere Input Current Bipolar Op Amp(輸入微微安培電流雙極性四運(yùn)放) |
| AD705 | Picoampere Input Current Bipolar Op Amp(輸入微微安培電流雙極性運(yùn)放) |
| AD706 | Dual Picoampere Input Current Bipolar Op Amp(輸入微微安培電流雙極性雙運(yùn)放) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD704JRZ-16 | 功能描述:IC OPAMP GP QUAD PREC LN 16SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| AD704JRZ-16-REEL | 功能描述:IC OPAMP GP QUAD PREC LN 16SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| AD704KN | 制造商:Analog Devices 功能描述: |
| ad704se/883b | 制造商:Analog Devices 功能描述:OP AMP QUAD GP 18V 20PIN LCC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:IC,QUAD PRECISION OP-AMP - Bulk |
| AD704TQ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Picoampere Input Current Bipolar Op Amp |
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