參數(shù)資料
型號： INA330AIDGST
元件分類： 熱敏電阻
英文描述： THERMISTOR SIGNAL AMPLIFIER FOR TEMPERATURE CONTROL
中文描述： 熱敏電阻溫度控制信號放大器
文件頁數(shù)： 9/14頁
文件大?。?/td> 245K
代理商： INA330AIDGST
INA330
SBOS260
9
www.ti.com
FIGURE 6. PID Temperature Control Loop.
25
°
C. V
ADJ
= 2.5V + 0.9V will change the set-point by 1
°
C.
A 0V to 5V D/A converter will provide approximately
±
2.5
°
C
adjustment range. A 12-bit D/A converter will allow for
approximately 0.001
°
C resolution on the set-point tempera-
ture.
For best temperature stability, the set-point temperature
voltage should be derived ratiometrically from V
BIAS
. A D/A
converter used to derive the set-point voltage should share
the same reference voltage source as V
BIAS
. Likewise, the 1V
INA330
+5V
(2)
V
2
V
1
1V
(1)
2
3
10
1
4
Enable
+5V
I
1
I
2
R
SET
10k
R
200k
Thermistor
R
SET
= 10k
C
500pF
I
O
= I
1
–
I
2
V
O
8
7
V
ADJUST
= 0V to 5V
= 2.5V at 25
°
C Set-Point
D/A
Converter
Temperature
Adjust
V
REF(1)
= +5V
R
1
R
3
R
2
OPA348
C
1
C
3
+5V
R
4
10k
10k
10k
OPA569
OPA569
TEC
Cooling
C
2
PID
3.3V
3.3V
10k
10k
NOTES: (1) Ratiometrically derived voltages.
(2) The INA330 can also use a 3.3V, supply;
however, components must be chosen appropriate
to the smaller output voltage range.
indicates direction of voltage change for
rising temperature at the thermistor.
TEC DRIVER AMPLIFIER OPTIONS
OPA569
DRV591
DRV593
DRV594
2A Linear Amplifier
3A PWM Power Driver
3A PWM Power Driver
3A PWM Power Driver
4k
1k
V
+5V
10k
10k
V
+5V
9
5
6
V
BIAS(1)
+
–
source for V
1
and V
2
should be derived from the same
reference.
The PID loop compensation can be optimized for loop
stability and best response to thermal transients by adjusting
C
1
, C
2
, C
3
, R
2
, R
3
, and R
4
. This is highly dependant on the
thermal characteristics of the temperature-controlled block
and thermistor/TEC mounting. Figure 7 shows a circuit that
can be used as an intermediate circuit to easily adjust
components and determine system requirements.
FIGURE 7. Diagnostic and Optimization PID Temperature Control Loop.
C
2
1
μ
F
R
7
10M
R
6
5k
INA330
+5V
+1V
Enable
+5V
R
SET
10k
R
200k
Thermistor
R
THERM
= 10k
C
500pF
V
ADJ
D/A
Converter
Ref
R
4
10k
R
2
200
R
1
2k
V
BIAS
O1/4
R
3
10k
C
1
22nF
R
8
10k
OP1/4
R
10
100k
R
11
10k
OP1/4
R
9
100k
C
3
1
μ
F
V
BIAS
V
BIAS
V
BIAS
R
13
1M
R
14
10k
OP1/4
R
12
100k
Differentiator
TC: 100ms to 1s
Integrator
TC: 1s to 10s
C
4
0.1
μ
F
Power
Amplifier
OPA569
DRV591
DRV593
DRV594
To
TEC
OP1/2
R
15
10k
Proportional
V
BIAS
R
5
5k
V
1
V
2
3
2
1
10
7
5
6
8
7
4
I
1
I
2
This versatile PID compensation circuit allows
independent adjustment of the Proportional,
Integral, and Derivative control signals to
facilitate optimization of loop dynamics. The
results can then be duplicated using the circuit
shown in Figure 6.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
INA330AIDGST 制造商:Texas Instruments 功能描述:IC AMP INST SMD VSSOP10 330
INA330AIDGSTG4 功能描述:差分放大器 Thermistor Signal for Temp Control RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel
INA331 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Power, Single-Supply, CMOS INSTRUMENTATION AMPLIFIERS
INA331AIDGKR 功能描述:儀表放大器 Lo-Pwr Single Sply CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補償電壓: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
INA331AIDGKRG4 功能描述:儀表放大器 Lo-Pwr Single Sply CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補償電壓: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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