- 您现在的位置：买卖IC网 > PDF目录17061 > DC1010A-A (Linear Technology)BOARD DELTA SIGMA ADC LTC2493 PDF资料下载
参数资料
| 型号： | DC1010A-A |
| 厂商： | Linear Technology |
| 文件页数： | 15/32页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2493 |
| 软件下载： | QuikEval System |
| 设计资源： | DC1010A Design File DC1010A Schematic |
| 标准包装： | 1 |
| 系列： | Easy Drive™, QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 15 |
| 数据接口： | I²C，串行 |
| 已用 IC / 零件： | LTC2493 |
| 已供物品： | 板 |
| 相关产品： | LTC2493IDE#TRPBF-ND - IC ADC 24BIT DELTA SIG 14-DFN LTC2493CDE#TRPBF-ND - IC ADC 24BIT DELTA SIG 14-DFN LTC2493CDE#PBF-ND - IC ADC 24BIT DELTA SIG 14-DFN LTC2493IDE#PBF-ND - IC ADC 24BIT DELTA SIG 14-DFN |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
LTC2493
22
2493fd
Figure 11. Equivalent Analog Input Circuit
IINI IN
VV
R
AVG
IN CM
REFCM
EQ
+
() = () =
–
()
.
05
IIREF
VV
V
R
AVG
REFREF CM
IN CM
+
() ≈
+
()
15
05
.–
.
()
EEQ
IN
REFEQ
REF
REFCM
V
VR
where
VREF
REF
V
–
:
(
2
=
+
))
–
,
=
=
+
REFREF
VININWHERE IN AN
IN
2
DDINARE THESELECTEDINPUTCHANNELS
V
IN
IN CM
+
=
()
––
.
IN
RM INTERNALOSCILLATOR
EQ
=
2
2716
00HzMODE
R
2.98MINTERNALOSCILLATOR 50Hz/60
EQ =
HHz MODE
R
0.833 10
/f
EXTERNALOSCIL
EQ
12
EOSC
=
()
LLATOR
IN+
IN–
10k
INTERNAL
SWITCH
NETWORK
10k
CEQ
12F
10k
IIN–
REF+
IREF+
IIN+
IREF–
2493 F11a
SWITCHING FREQUENCY
fSW = 123kHz INTERNAL OSCILLATOR
fSW = 0.4 fEOSC EXTERNAL OSCILLATOR
REF–
10k
100
INPUT
MULTIPLEXER
100
Synchronizing Multiple LTC2493s with a Global
Address Call
In applications where several LTC2493s (or other I2C
delta-sigma ADCs from Linear Technology Corporation)
are used on the same I2C bus, all converters can be syn-
chronized through the use of a global address call. Prior
to issuing the global address call, all converters must
have completed a conversion cycle. The master then is-
sues a START, followed by the global address 1110111,
and a write request. All converters will be selected and
acknowledge the request. The master then sends a write
byte (optional) followed by the STOP command. This
will update the channel selection (optional) converter
configuration (optional) and simultaneously initiate a start
of conversion for all delta-sigma ADCs on the bus (see
GLOBAL ADDRESS
SCL
SDA
LTC2493
…
S
W ACK WRITE (OPTIONAL)
P
2493 F10
ALL LTC2493s IN SLEEP
CONVERSION OF ALL LTC2493s
DATA INPUT
Figure 10. Synchronize Multiple LTC2493s with a Global Address Call
Figure 10). In order to synchronize multiple converters
without changing the channel or configuration, a STOP
may be issued after acknowledgement of the global write
command. Global read commands are not allowed and
the converters will NACK a global read request.
Driving the Input and Reference
The input and reference pins of the LTC2493 are connected
directly to a switched capacitor network. Depending on
the relationship between the differential input voltage and
the differential reference voltage, these capacitors are
switched between these four pins. Each time a capacitor
is switched between two of these pins, a small amount
of charge is transferred. A simplified equivalent circuit is
shown in Figure 11.
applicaTions inForMaTion
相关PDF资料 |
PDF描述 |
|---|---|
| RCM15DCAH-S189 | CONN EDGECARD 30POS R/A .156 SLD |
| ECC31DJCN | CONN EDGECARD 62PS .100 PRESSFIT |
| DEMO9S08QB8 | BOARD DEMO FOR 9S08 QB MCU |
| DC951A | BOARD DELTA SIGMA ADC LTC2481 |
| EBC28DCAI | CONN EDGECARD 56POS R/A .100 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1010A-B | 功能描述:BOARD DELTA SIGMA ADC LTC2489 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:Easy Drive™, QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1010A-C | 功能描述:BOARD DELTA SIGMA ADC LTC2487 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:Easy Drive™, QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1010CA | 制造商:DIGITAL 功能描述: |
| DC1010EL07 WAF | 制造商:ON Semiconductor 功能描述: |
| DC-101-1 | 制造商:INTRONICS 制造商全称:INTRONICS 功能描述:1 WATT SINGLE OUTPUT DC-DC CONVERTERS |
发布紧急采购，3分钟左右您将得到回复。