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參數(shù)資料
| 型號： | AD713AQ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 0K |
| 描述： | IC OPAMP BIFET QUAD PREC 14CDIP |
| 標(biāo)準(zhǔn)包裝： | 25 |
| 放大器類型： | J-FET |
| 電路數(shù)： | 4 |
| 轉(zhuǎn)換速率： | 20 V/µs |
| -3db帶寬： | 4MHz |
| 電流 - 輸入偏壓： | 55pA |
| 電壓 - 輸入偏移： | 300µV |
| 電流 - 電源： | 10mA |
| 電流 - 輸出 / 通道： | 25mA |
| 電壓 - 電源，單路/雙路(±)： | 9 V ~ 36 V，±4.5 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 14-CDIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 14-CERDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 766 (CN2011-ZH PDF) |
AD713
Rev. F | Page 12 of 20
A HIGH SPEED INSTRUMENTATION AMPLIFIER
CIRCUIT
The instrumentation amplifier circuit shown in Figure 33 can
provide a range of gains from unity up to 1000 and higher using
only a single AD713. The circuit bandwidth is 1.2 MHz at a gain
of 1 and 250 kHz at a gain of 10; settling time for the entire
circuit is less than 5 μs to within 0.01% for a 10 V step, (G = 10).
Other uses for Amplifier A4 include an active data guard and an
active sense input.
10k
+IN
–IN
SENSE
TO BUFFERED
VOLTAGE
REFERENCE
OR REMOTE
GROUND SENSE
10k**
RG
7.5pF
*1.5pF TO 20pF
(TRIM FOR BEST SETTLING TIME)
5pF
A1
1
3
2
A3
8
9
10
A4
14
13
12
A2
7
6
5
7.5pF
10k
10k**
1/4
AD713
1/4
AD713
1/4
AD713
1/4
AD713
CIRCUIT GAIN =
+ 1
20,000
RG
VOLTRONICS SP20 TRIMMER CAPACITOR
OR EQUIVALENT
RATIO MATCHED 1% METAL FILM
RESISTORS
*
**
+
1F
0.1F
+
1F
0.1F
+VS
COM
–VS
AD713
PIN 4
AD713
PIN 11
00
824
-033
Figure 33. High Speed Instrumentation Amplifier Circuit
shows the pulse response of this circuit for a gain of 10.
Table 4. Performance Summary for the High Speed
Instrumentation Amplifier Circuit
Gain
RG
Bandwidth
Settling Time (0.01%)
1
1.2 MHz
2 μs
2
20 kΩ
1.0 MHz
2 μs
10
4.04 kΩ
0.25 MHz
2 μs
1 NC = no connect.
008
24-
0
34
100
90
10
0%
5V
2s
Figure 34. Pulse Response of High Speed Instrumentation Amplifier,
Gain = 10
A HIGH SPEED 4-OP-AMP CASCADED AMPLIFIER
CIRCUIT
Figure 35 shows how the four amplifiers of the AD713 can be
connected in cascade to form a high gain, high bandwidth
amplifier. This gain of 100 amplifier has a 3 dB bandwidth
greater than 600 kHz.
1/4
AD713
–VS
+VS
2.15k
INPUT
+
1F
0.1F
1F
0.1F
OUTPUT
4-OP-AMP CASCADED AMPLIFIER
GAIN = 100
BANDWIDTH (–3dB) = 632kHz
1/4
AD713
1k
1/4
AD713
2.15k
1/4
AD713
2.15k
OPTIONAL VOS
ADJUSTMENT
+VS
–VS
22M
100k
008
24-
035
3
4
1
2
12
11
14
13
5
7
6
10
8
9
Figure 35. High Speed 4-Op-Amp Cascaded Amplifier Circuit
0
0824-
03
6
+VS
10k
100k
1k
LOW DISTORTION
SINEWAVE INPUT
ERROR SIGNAL
OUTPUT
(ERROR/11)
1k
NULL
ADJUST
10k
–VS
1/4
AD713
4
11
+
1F
0.1F
+
1F
100pF
0.1F
TO SPECTRUM ANALYZER
Figure 36. THD Test Circuit
HIGH SPEED OP AMP APPLICATIONS AND
TECHNIQUES
DAC Buffers (I-to-V Converters)
The wide input dynamic range of JFET amplifiers makes them
ideal for use in both waveform reconstruction and digital audio
DAC applications. The AD713, in conjunction with a 16-bit
DAC, can achieve 0.0016% THD without requiring the use of a
deglitcher in digital audio applications.
Driving the Analog Input of an Analog-to-Digital
Converter
An op amp driving the analog input of an analog-to-digital
converter (ADC), such as that shown in Figure 37, must be
capable of maintaining a constant output voltage under dynami-
cally changing load conditions. In successive approximation
converters, the input current is compared to a series of switched
trial currents. The comparison point is diode clamped but may
vary by several hundred millivolts, resulting in high frequency
modulation of the analog-to-digital input current. The output
impedance of a feedback amplifier is made artificially low by its
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| AD713JNZ | 功能描述:IC OPAMP BIFET QUAD PREC 14DIP 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 |
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