参数资料
| 型号： | AD1377KD |
| 厂商： | Analog Devices Inc |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC ADC SNGL 16BIT 32-CDIP |
| 标准包装： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 111k |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 800mW |
| 电压电源： | 双 ± |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 32-DIP（0.900"，22.86mm） |
| 供应商设备封装： | 32-BBDIP-H |
| 包装： | 管件 |
| 输入数目和类型： | 16 个单端，双极；16 个单端，单极 |
AD1376/AD1377
Rev. D | Page 10 of 12
HIGH RESOLUTION DATA ACQUISITION SYSTEM
The essential details of a high resolution data acquisition system
using a 16-bit sample-and-hold amplifier (SHA) and the
AD1376/AD1377 are shown in Figure 14. Conversion is
initiated by the falling edge of the CONVERT START pulse.
This edge drives the device’s STATUS line high. The inverter
then drives the SHA into hold mode. STATUS remains high
throughout the conversion and returns low once the conversion
is completed. This allows the SHA to re-enter track mode.
This circuit can exhibit nonlinearities arising from transients
produced at the ADC’s input by the falling edge of CONVERT
START. This edge resets the ADC’s internal DAC; the resulting
transient depends on the SHA’s present output voltage and the
ADC’s prior conversion result. In the circuit of Figure 15, the
falling edge of CONVERT START also places the SHA into hold
mode (via the ADC’s STATUS output), causing the reset
transient to occur at the same moment as the SHA’s track-and-
hold transition. Timing skews and capacitive coupling can cause
some of the transient signal to add to the signal being acquired
by the SHA, introducing nonlinearity.
00
69
9-
01
4
SHA
AD1376/
AD1377
30
21
28
22
24
27
26
19
18
31
BITS
1–16
+
CONVERT
START
–10V TO +10V
+
10
F
+
10
F
10
F
+15V
–15V
+5V
ANALOG
INPUT
–10V TO +10V
Figure 14. Basic Data Acquisition System Interconnections 16-Bit SHA
A much safer approach is to add a flip-flop, as shown in
Figure 15. The rising edge of CONVERT START places the
track-and-hold device into hold mode before the ADC reset
transients begin. The falling edge of STATUS places the SHA
back into track mode. System throughput will be reduced if a
long CONVERT START pulse is used. Throughput can be
calculated from
CS
CONV
ACQ
T
Throughput
+
=
1
where:
TACQ is the track-and-hold acquisition time.
TCONV is the time required for the ADC conversion.
TCS is the duration of CONVERT START.
The combination of the AD1376 and a 16-bit SHA can provide
greater than 50 kHz throughput. No significant track-and-hold
droop error will be introduced, provided the width of
CONVERT START is small compared with the ADC’s
conversion time.
0
06
99
-0
15
SHA
AD1376/
AD1377
30
21
28
22
24
27
26
19
18
31
BITS
1–16
+
–10V TO +10V
+
10
F
+
10
F
10
F
+15V
–15V
+5V
ANALOG
INPUT
–10V TO +10V
CONVERT
START
HC112
S
R
Q
J
Q
K
+5V
Figure 15. Improved Data Acquisition System
1
相关PDF资料 |
PDF描述 |
|---|---|
| AD1380KD | IC ADC SNGL 16BIT 32-CDIP |
| AD1555BP | IC ADC PGA 24BIT LN 28PLCC |
| AD1671KQ | IC ADC SNGL 12BIT 28-CDIP |
| AD1674BD | IC ADC 12BIT 100KSPS 28-CDIP |
| AD1871YRSZ-REEL | IC ADC STEREO 24BIT 96KHZ 28SSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD-1377-P-E118-TOR-SPR | 制造商:TE Connectivity 功能描述:8-1197689-1,994123-000 |
| AD-1377-P-E118-TOR-SPRNG | 功能描述:电缆固定件和配件 AD-1377-P-E118-TOR-SPRNG RoHS:否 制造商:Heyco 类型:Cable Grips, Liquid Tight 材料:Nylon 颜色:Black 安装方法:Cable 最大光束直径:11.4 mm 抗拉强度: |
| AD-1377-S-SPEC-CRIMP-TOOL | 功能描述:TOOL HAND CRIMP 12-26AWG RoHS:否 类别:工具 >> 压接器，施用器，压力机 系列:- 产品培训模块:Board-to-Wire Connectors 标准包装:1 系列:DF11 工具类型:台式压机，施用器 适用于相关产品:矩形触点，24-28 AWG 特点:- 配用:H1505TR-ND - CONN SOCKET 24-28AWG CRIMP GOLDH1504TR-ND - CONN SOCKET 24-28AWG CRIMP TIN 相关产品:AP105-DF11-2428S(64)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(63)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(62)-ND - TOOL APPLICATOR DF11 ACCESSORIESAP105-DF11-2428S(61)-ND - TOOL APPLICATOR DF11 ACCESSORIESCM-105 WITH TRANSFORMER-ND - TOOL AUTO CRIMPING MACHINE 其它名称:*AP105-DF11-2428SQ1139807AQ949366 |
| AD1378SD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 16-Bit |
| AD1378SD/883B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 16-Bit |
发布紧急采购，3分钟左右您将得到回复。