參數(shù)資料
型號(hào)： PGA204AP
元件分類： 測(cè)量放大器
英文描述： Precision Gain of 5 Instrumentation Amplifier
中文描述： 5精密增益儀表放大器
文件頁(yè)數(shù)： 10/14頁(yè)
文件大?。?/td> 261K
代理商： PGA204AP
10
PGA204/205
TYPICAL PERFORMANCE CURVES
(CONT)
At T
A
= +25
°
C, and V
S
=
±
15V, unless otherwise noted.
NOISE, 0.1 TO 10Hz, G = 1
1s/Div
0.5
μ
V/Div
0.2
μ
V/Div
1s/Div
INPUT-REFERRED NOISE,
0.1 TO 10Hz, G = 1000
FIGURE 1. Basic Connections.
APPLICATION INFORMATION
Figure 1
shows the basic connections required for operation
of the PGA204/205. Applications with noisy or high imped-
ance power supplies may require decoupling capacitors
close to the device pins as shown.
The output is referred to the output reference (Ref) terminal
which is normally grounded. This must be a low-impedance
connection to assure good common-mode rejection. A resis-
tance of 5
in series with the Ref pin will cause a typical
device to degrade to approximately 80dB CMR (G=1).
The PGA204/205 has an output feedback connection (pin
12). Pin 12 must be connected to the output terminal (pin 11)
for proper operation. The output Feedback connection can
be used to sense the output voltage directly at the load for
best accuracy.
DIGITAL INPUTS
The digital inputs A
0
and A
1
select the gain according to the
logic table in Figure 1. Logic “1” is defined as a voltage
greater than 2V above digital ground potential (pin 14).
Digital ground can be connected to any potential from the
V– power supply to 4V less than V+. Digital ground is
normally connected to ground. The digital inputs interface
directly CMOS and TTL logic components.
Approximately 1
μ
A flows out of the digital input pins when
a logic “0” is applied. Logic input current is nearly zero with
a logic “1” input. A constant current of approximately
A
1
A
2
A
3
12
11
10
25k
25k
25k
25k
7
5
14
16
4
V
IN
V
IN
PGA204
PGA205
V
O
= G (V
IN
– V
IN
)
V
O
–
+
Over-Voltage
Protection
Over-Voltage
Protection
Feedback
Digitally Selected
Feedback Network
1
V
O1
15
6
9
8
V
O2
V
OS
Adj
+15V
1μF
+15V
1μF
+
–
PGA204
V
IN
V
IN
–
+
V
O
A
1
A
0
Sometimes shown in simplified form:
A
1
A
0
0
0
1
1
PGA205
1
2
4
8
PGA204
1
10
100
1000
GAIN
0
1
0
1
Ref
相關(guān)PDF資料
PDF描述
PGA204AU Precision Gain of 5 Instrumentation Amplifier
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PGA204AP 制造商:BURR-BROWN 功能描述:AMP INSTRUMENT PROG GAIN DIP 204 制造商:Texas Instruments 功能描述:INST AMP PROG GAIN 1MHZ 16DIP
PGA204APG4 功能描述:儀表放大器 Programmable Gain Instrumentation Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk
PGA204AU 功能描述:儀表放大器 Programmable Gain Instrumentation Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk
PGA204AU 制造商:Texas Instruments 功能描述:IC SM AMP INSTRUMENT PROG GAIN
PGA204AU/1K 功能描述:儀表放大器 Programmable Gain Instrumentation Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk
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