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參數(shù)資料
| 型號(hào)： | AD549LHZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP GP 1MHZ LP 20MA TO99-8 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Topgate™ |
| 放大器類型： | 通用 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 3 V/µs |
| 增益帶寬積： | 1MHz |
| 電流 - 輸入偏壓： | 0.04pA |
| 電壓 - 輸入偏移： | 300µV |
| 電流 - 電源： | 600µA |
| 電流 - 輸出 / 通道： | 20mA |
| 電壓 - 電源，單路/雙路(±)： | ±5 V ~ 18 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | TO-99-8 金屬罐 |
| 供應(yīng)商設(shè)備封裝： | TO-99-8 |
| 包裝： | 散裝 |
| 產(chǎn)品目錄頁面： | 773 (CN2011-ZH PDF) |
AD549
Rev. H | Page 17 of 20
The pH probe output is ideally 0 V at a pH of 7, independent
of temperature. The slope of the transfer function of the probe,
though predictable, is temperature dependent (54.2 mV/pH at
0°C and 74.04 mV/pH at 100°C). By using an AD590 tempera-
ture sensor and an AD534 analog divider, an accurate temperature
compensation network can be added to the basic pH probe ampli-
fier. Table 4 shows voltages at various points, thereby illustrating
the compensation. The AD549 is set for a noninverting gain of
13.51. The output of the AD590 circuitry (Point C) is equal to
10 V at 100°C and decreases by 26.8 mV/°C. The output of the
AD534 analog divider (Point D) is a temperature-compensated
output voltage centered at 0 V for a pH of 7 and has a transfer
function of –1.00 V/pH unit. The output range spans from
7.00 V (pH = 14) to +7.00 V (pH = 0).
00
51
1-
0
46
8
14
10 Z2
12
OUT
7
Y2
6
Y1
11 Z1
1
X1
2
X2
AD534
0.1F
+15V
0.1F
–15V
OUTPUT
(D)
(B)
(C)
26.6k
+
–
AD590
IN STAINLESS
STEEL PROBE
OR AC2626
+15V
3
2
6
4
8
7
AD549
0.1F
pH
PROBE
OUTPUT
(A)
1k
12k
1k
SCALE FACTOR
ADJUST
Figure 46. Temperature Compensated pH Amplifier
Table 4. Illustration of Temperature Compensation
Point
Probe Temperature (°C)
A (Probe Output) (mV)
B (A × 13.51) (V)
C (AD590 Output) (V)
D (10 × (B ÷ C)) (V)
0
54.20
0.732
7.32
1.00
25
59.16
0.799
7.99
1.00
37
61.54
0.831
8.31
1.00
60
66.10
0.893
8.93
1.00
100
74.04
1.000
10.00
1.00
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD549LHZ | 制造商:Analog Devices 功能描述:IC, OP-AMP, 1MHZ, 3V/ us, TO-99-8 |
| AD549S | 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Input Bias Current Operational Amplifier |
| AD549SH | 制造商:Analog Devices 功能描述: |
| AD549SH/883B | 制造商:Analog Devices 功能描述:OP Amp Single GP 制造商:Analog Devices 功能描述:OP AMP SGL GP 18V 8PIN TO-99 - Rail/Tube 制造商:Analog Devices 功能描述:ULTRALOW BIAS CURRENT AMP 制造商:Rochester Electronics LLC 功能描述:ULTRALOW BIAS CURRENT AMP - Bulk 制造商:Analog Devices 功能描述:IC OP-AMP CURRENT ULTRALOW BIAS 制造商:Analog Devices Inc. 功能描述:Precision Amplifiers ULTRALOW BIAS CURRENT AMP 制造商:Analog Devices Inc. 功能描述:Precision Amplifiers IC ULTRALOW BIAS CURRENT |
| AD-55 | 制造商:MEANWELL 制造商全稱:Mean Well Enterprises Co., Ltd. 功能描述:55W Single Output with Battery Charger(UPS Function) |
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