參數(shù)資料
型號： AD537SD
廠商： Analog Devices Inc
文件頁數(shù)： 8/8頁
文件大?。?/td> 683K
描述： IC V/F CONV 14-CDIP
標準包裝： 1
類型： 電壓至頻率
頻率 - 最大： 100kHz
全量程： ±30ppm/°C
線性： ±0.05%
安裝類型： 通孔
封裝/外殼： 14-CDIP（0.300"，7.62mm）
供應商設(shè)備封裝： 14-CDIP
包裝： 管件
AD537
REV. C
8
THERMOCOUPLE INPUT
The output of a Chromel-Constantan (Type E) thermocouple,
using a reference junction at 0癈, varies from 0mV to 53.14 mV
over the temperature range 0癈 to +700癈 with a slope of
80.678礦/degree over most of its range and some nonlinearity
over the range 0癈 to +200癈. For this example, we assume
that it is desired to indicate temperature in Degrees Celsius
using a counter/display with a 100ms gate width. Thus, the V-F
converter must deliver an output of 7kHz for an input of
53.14mV. If very precise operation down to 0癈 is imperative,
some sort of linearizing is necessary (see, for example, Analog
Devices Nonlinear Circuits Handbook, pp. 9297) but in many
cases operation is only needed over part of the range.
The circuit shown in Figure 14 provides good accuracy from
+300癈 to +700癈. The extrapolation of the temperature volt-
age curve back to 0癈 shows that an offset of 3.34mV is
required to fit the curve most exactly. This small amount of
voltage can be introduced without an additional calibration step
using the +1.00V output of the AD537. To adjust the scale, the
thermocouple should be raised to a known reference tempera-
ture near 500癈 and the frequency adjusted to value using R1.
The error should be within ?.2% over the range 400癈 to
700癈.
1
2
14
13
5
6
7
10
9
8
3
4
12
11
AD537
+5V
V
LOGIC
10Hz/?/SPAN>C
0.005礔
47k
I
OFFSET
H 21?/SPAN>A
120
R1 SCALE
50
T
MEAS
T
REF
(0?/SPAN>C)
0 TO 53mV
BUF
DRIVER
CURR-
TO-FREQ
CONV
PRECISION
VOLTAGE
REFERENCE
V
T
V
R
360礎(chǔ)
F
S
Figure 14. Thermocouple Interface with First-Order
Linearization
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
14-Lead Side-Brazed Ceramic DIP (TO116)
(D14)
PIN 1
0.310 (7.87)
0.220 (5.59)
0.098 (2.49) MAX
0.005 (0.13) MIN
8
7
14
1
0.200
(5.08)
MAX
0.200 (5.08)
0.125 (3.18)
0.023 (0.58)
0.014 (0.36)
0.070 (1.78)
0.030 (0.76)
0.100
(2.54)
BSC
0.060 (1.52)
0.015 (0.38)
0.150
(3.81)
MIN
SEATING
PLANE
0.785 (19.94) MAX
0.320 (8.13)
0.290 (7.37)
0.015 (0.38)
0.008 (0.20)
10-Lead Metal Can (TO-100)
(H-10A)
36?/SPAN>
 BSC
0.034 (0.86)
0.028 (0.71)
0.045 (1.14)
0.029 (0.74)
0.115
(2.92)
BSC
0.230
(5.84)
BSC
6
8
5
7
1
4
2
3
9
10
REFERENCE PLANE
BASE & SEATING PLANE
0.355 (9.02)
0.305 (7.75)
0.370 (9.40)
0.335 (8.51)
0.562 (14.30)
0.500 (12.70)
0.040 (1.01)
0.010 (0.25)
0.050
(1.27)
MAX
0.019 (0.48)
0.016 (0.41)
0.021 (0.53)
0.016 (0.41)
0.185 (4.70)
0.165 (4.19)
0.044 (1.12)
0.032 (0.81)
相關(guān)PDF資料
PDF描述
AD636JD IC TRUE RMS/DC CONV MONO 14-CDIP
AD650SD IC V-F/F-V CONV 1MHZ 14-CDIP
AD652SQ IC V-F CONV SYNCH MONO 5V 16CDIP
AD654JNZ/+ IC CONV VOLT-FREQ 500KHZ 8DIP
AD7740YRM IC CONVERTER V TO FREQ 8-MSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD537SD/883B 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 IC MONO V/F CONVERTER IC RoHS:否 制造商:Texas Instruments 全標度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube
AD537SH 功能描述:IC V/F CONV TO100-10 RoHS:否 類別:集成電路 (IC) >> PMIC - V/F 和 F/V 轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 類型:頻率至電壓 頻率 - 最大:10kHz 全量程:- 線性:±0.3% 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設(shè)備封裝:8-SOIC 包裝:Digi-Reel® 其它名稱:LM2917MX-8/NOPBDKR
AD537SH/883B 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 IC MONO V/F CONVERTER IC RoHS:否 制造商:Texas Instruments 全標度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube
AD5380BST-3 制造商:Analog Devices 功能描述:DAC 40-CH Resistor-String 14-bit 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:32/40-CHANNEL 3V/5V SINGLE SUPPLY 12/14-BIT VOUT DAC - Bulk
AD5380BST-3-REEL 制造商:Analog Devices 功能描述:DAC 40-CH Resistor-String 14-bit 100-Pin LQFP T/R
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*