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参数资料
| 型号： | HI7188EVAL |
| 厂商： | Intersil |
| 文件页数： | 6/22页 |
| 文件大小： | 0K |
| 描述： | EVALUATION PLATFORM HI7188 |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 240 |
| 数据接口： | 串行 |
| 输入范围： | ±2.5 V |
| 在以下条件下的电源（标准）： | 28mW @ 240SPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | HI7188 |
| 已供物品： | 板 |
Application Note 9518
uration Register(s), programming the HI7188 as desired.
Executing this command returns the user to the Con?gu-
ration menu. In addition, entering c at any of the prompts
immediately returns the user to the Con?guration menu
the HI7188. The Con?guration Menu remains displayed
on the screen.
Con?guration Files
3
4
5
6
Set Full Con?guration: Entering 3 from the Con?guration
Menu allows the user to fully program the con?guration
of the HI7188 from a single menu pick. Choosing Set Full
Con?guration is functionally equivalent to choosing Set
Chip Con?guration followed by Set Channel Con?gura-
tion. Executing this command returns the user to the
Con?guration Menu.
Interpret File: Entering 4 from the Con?guration Menu
allows the user to interpret a preset con?guration ?le.
The user is prompted for a ?le name from which the soft-
ware determines what con?guration would occur if this
?le were used to con?gure the HI7188. This information
is displayed on the screen. The ?rst screen output dis-
plays the chip level con?guration. Hit any key to continue
with the channel con?guration information followed by
the calibration coef?cients. The number of keystrokes
required to display all data in a con?guration ?le is a
function of the con?guration ?le contents. Executing this
command returns the user to the Con?guration Menu.
Display/Save Current Con?guration: Entering 5 from the
Con?guration Menu allows the user to quickly determine
the present con?guration of the HI7188. The software
completes a read of the Control Register, Channel Con-
?guration Registers and all Calibration RAMs, then dis-
plays the information on the screen. The user is then is
given the option to save this con?guration to a ?le. If sav-
ing to a ?le is selected, the user is prompted for a ?le
name and a header comment. Please see the Helpful
Hints Section of this document for a further explanation
on using the Display/Save command. Executing this
command returns the user to the Con?guration Menu.
Restore Configuration: Entering 6 from the Configuration
Menu allows the user to configure the HI7188 from a file.
Con?guration ?les are ASCII ?les that can be used to pro-
gram the HI7188 using a single command. An example con-
?guration ?le is shown below:
Comment lines can go anywhere
CNTL 0140
CCR2 17371737
CCR1 1737
ORAM 00000A 00000B 00000A 00000B 00000A 00000B
PRAM 00000C 00000D 00000C 00000D 00000C 00000D
NRAM 00000E 00000F 00000E 00000F 00000E 00000F
If the user invokes the restore con?guration pick ( 6 ) of the
Con?guration Menu and uses the ?le displayed above, the
following sequence occurs:
1. CNTL 0140 : 0140 (hex) will be written to the Control Reg-
ister. This will configure the part to convert on 6 channels
with line noise rejection disabled and the two’s comple-
ment data coding bit active.
2. CCR2 17371737 : 17371737 (hex) will be written to the
CCR #2 Register. This will configure the HI7188 such that
the first and third logical channels converted in the 6 chan-
nel conversion scan will use physical channel 1, bipolar
mode, offset calibration mode and a gain select of 8. Also,
the second and fourth logical channels converted in the 6
channel conversion scan will use physical channel 2, bipo-
lar mode, offset calibration mode and a gain select of 8.
3. CCR1 1737 : 1737 (hex) will be written to the CCR#1 Reg-
ister. This will configure the HI7188 such that the fifth logi-
cal channel converted in the 6 channel conversion scan
will use physical channel 1, bipolar mode, offset calibration
mode and a gain select of 8. Also, the sixth logical channel
converted in the 6 channel conversion scan will use phys-
ical channel 2, bipolar mode, offset calibration mode and a
gain select of 8.
The user is prompted for a file name, from which the soft-
ware executes the required communication cycles
required to configure the HI7188 as described. Executing
this command returns the user to the Configuration Menu.
Towards the bottom of the Con?guration Menu are picks
that allow the user to quickly access the Main Menu,
Read Menu, and Write Menu.
m Main Menu: Entering m from the Con?guration Menu
returns software execution to the Main Menu.
4. ORAM 00000A 00000B 00000A 00000B 00000A 00000B :
00000A (hex) will be written to the first, third, and fifth log-
ical offset RAM location. These offset coefficients would be
used for offset calibration of logical channels 1, 3, and 5
which are physically described by the CCR register con-
tents. 00000B (hex) will be written to the second, fourth,
and sixth logical offset RAM location. These offset coeffi-
cients would be used for offset calibration of logical chan-
nels 2, 4, and 6 which are physically described by the CCR
register contents.
r
Read Menu: Entering r from the Con?guration Menu
returns software execution to the Read Menu.
5. PRAM 00000C 00000D 00000C 00000D 00000C 00000D :
00000C (hex) will be written to the first, third, and fifth log-
w Write Menu: Entering w from the Con?guration Menu
returns software execution to the Write Menu.
ical positive gain calibration RAM location. These coeffi-
cients would be used for gain calibration of positive input
i
s
I/O Reset: Entering i from the Con?guration Menu sends
an active low signal to the HI7188 RSTI/O pin, clearing
the Serial Interface Controller effectively aborting an
ongoing communication cycle. The Con?guration Menu
remains displayed on the screen.
Reset: Entering s from the Con?guration Menu sends an
active low signal to the HI7188 RST pin, which initializes
6
voltages for logical channels 1, 3, and 5 which are physi-
cally described by the CCR register contents. 00000D
(hex) will be written to the second, fourth, and sixth logical
positive gain calibration RAM location. These coefficients
would be used for gain calibration of positive input voltages
for logical channels 2, 4, and 6 which are physically de-
scribed by the CCR register contents.
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| HI7188IN | 功能描述:CONV A/D 16BIT 8:1 MUX 44-MQFP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率（每秒）:3M 数据接口:- 转换器数目:- 功率耗散（最大）:- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:- |
| HI7188IP | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述:IC 16BIT ADC 7188 DIP40 制造商:Harris Corporation 功能描述: |
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| HI7190 WAF | 制造商:Harris Corporation 功能描述: |
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