VREF AD7545 R1* *REFER TO TABLE 5. R2" />
參數(shù)資料
型號(hào)： AD713JRZ-16-REEL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 6/20頁(yè)
文件大?。?/td> 0K
描述： IC OPAMP BIFET QUAD PREC 16SOIC
標(biāo)準(zhǔn)包裝： 1,000
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： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC W
包裝： 帶卷 (TR)
AD713
Rev. F | Page 14 of 20
00824-
044
19
OUT1
AGND
3
DGND
20
18
VREF
AD7545
R1*
*REFER TO TABLE 5.
R2*
DB11 TO DB0
GAIN
ADJUST
C1
33pF
VDD
VIN
VOUT
VDD
RFB
ANALOG
COMMON
+15V
–15V
0.1F
1/4
AD713
4
11
1
2
CMOS DAC APPLICATIONS
The AD713 is an excellent output amplifier for CMOS DACs. It
can be used to perform both two- and four-quadrant operation.
The output impedance of a DAC using an inverted R-2R ladder
approaches R for codes containing many 1s, 3R for codes
containing a single 1, and infinity for codes containing all 0s.
For example, the output resistance of the AD7545 modulates
between 11 kΩ and 33 kΩ. Therefore, with the DAC’s internal
feedback resistance of 11 kΩ, the noise gain varies from 2 to
4/3. This changing noise gain modulates the effect of the input
offset voltage of the amplifier, resulting in nonlinear DAC
amplifier performance. The AD713, with its guaranteed 1.5 mV
input offset voltage, minimizes this effect, achieving 12-bit
performance.
Figure 42. Unipolar Binary Operation
FILTER APPLICATIONS
A Programmable State Variable Filter
For the state variable or universal filter configuration of Figure 44
to function properly, DAC A1 and DAC B1 must control the
gain and Q of the filter characteristic, and DAC A2 and DAC B2
must accurately track for the simple expression of fC to be true.
This is readily accomplished using two AD7528 DACs and one
AD713 quad op amp. Capacitor C3 compensates for the effects
of op amp gain bandwidth limitations.
Figure 42 and Figure 43 show the AD713 and a 12-bit CMOS
DAC, the AD7545, configured for either a unipolar binary (two-
quadrant multiplication) or bipolar (four-quadrant multiplication)
operation. Capacitor C1 provides phase compensation, which
reduces overshoot and ringing.
Table 5. Recommended Trim Resistor Values vs. Grades for
AD7545 for VD = 5 V
This filter provides low-pass, high-pass, and band-pass outputs
and is ideally suited for applications where microprocessor
control of filter parameters is required. The programmable
range for component values shown is fC = 0 kHz to 15 kHz and
Q = 0.3 to 4.5.
Trim Resistor
JN/AQ
KN/BQ
LN/CQ
GLN/GCQ
R1
500 Ω
200 Ω
100 Ω
20 Ω
R2
150 Ω
68 Ω
33 Ω
6.8 Ω
1/4
AD713
1/4
AD713
00
82
4
-04
5
19
OUT1
AGND
20
18
VREF
AD7545
R1*
R2*
R4
20k
1%
R3
10k
1%
R5
20k
1%
12
3
DGND
C1
33pF
VDD
VIN
VOUT
VDD
RFB
ANALOG
COMMON
1
2
+15V
0.1F
4
–15V
0.1F
11
GAIN
ADJUST
DATA INPUT
DB11 TO DB0
*REFER TO TABLE 5.
Figure 43. Bipolar Operation
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參數(shù)描述
AD713JRZ-16-REEL7 功能描述:IC OPAMP BIFET QUAD PREC 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
AD713KN 制造商:Analog Devices 功能描述:OP Amp Quad GP 制造商:Rochester Electronics LLC 功能描述:HIGH SPEED QUAD BIFET AMP - Bulk 制造商:Analog Devices 功能描述:IC OP AMP QUAD BIFET DIP14 713
AD713KNZ 制造商:Analog Devices 功能描述:OP Amp Quad GP 制造商:Analog Devices 功能描述:OP Amp Quad GP ±18V 14-Pin PDIP N 制造商:Analog Devices 功能描述:IC OP AMP QUAD BIFET DIP14 713
AD713SCHIPS 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Precision, Low Cost, High Speed, BiFET Op Amp
AD713SQ 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Precision, Low Cost, High Speed, BiFET Op Amp
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