- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17070 > DC1010A-B (Linear Technology)BOARD DELTA SIGMA ADC LTC2489 PDF資料下載
參數(shù)資料
| 型號(hào)： | DC1010A-B |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 24/24頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2489 |
| 軟件下載： | QuikEval System |
| 設(shè)計(jì)資源： | DC1010A Design File DC1010A Schematic |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Easy Drive™, QuikEval™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 7.5 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 已用 IC / 零件： | LTC2489 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | LTC2489IDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2489CDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2489CDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2489IDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)當(dāng)前第24頁(yè)
LTC2489
9
2489fa
CONVERTER OPERATION
Converter Operation Cycle
The LTC2489 is a multichannel, low power, delta-sigma
analog-to-digital converter with a 2-wire, I2C interface.
Its operation is made up of four states (see Figure 1).
The converter operating cycle begins with the conver-
sion, followed by the sleep state and ends with the data
input/output cycle .
APPLICATIONS INFORMATION
Figure 1. State Transition Table
CONVERSION
SLEEP
2489 F01
YES
NO
ACKNOWLEDGE
YES
NO
STOP
OR READ
24 BITS
DATA OUTPUT/INPUT
POWER-ON RESET
DEFAULT INPUT CHANNEL:
IN+ = CH0, IN– = CH1
the LTC2489 is addressed for a read operation, the device
begins outputting the conversion result under the control
of the serial clock (SCL). There is no latency in the conver-
sion result. The data output is 24 bits long and contains a
16-bit plus sign conversion result. Data is updated on the
falling edges of SCL allowing the user to reliably latch data
on the rising edge of SCL. A new conversion is initiated
by a stop condition following a valid write operation or an
incomplete read operation. The conversion automatically
begins at the conclusion of a complete read cycle (all 24
bits read out of the device).
Ease of Use
The LTC2489 data output has no latency, filter settling
delay, or redundant data associated with the conversion
cycle. There is a one-to-one correspondence between the
conversion and the output data. Therefore, multiplexing
multiple analog inputs is straightforward. Each conversion,
immediately following a newly selected input is valid and
accurate to the full specifications of the device.
The LTC2489 automatically performs offset and full-scale
calibration every conversion cycle independent of the
input channel selected. This calibration is transparent
to the user and has no effect on the operation cycle de-
scribed above. The advantage of continuous calibration
is extreme stability of offset and full-scale readings with
respect to time, supply voltage variation, input channel,
and temperature drift.
Easy Drive Input Current Cancellation
The LTC2489 combines a high precision, delta-sigma ADC
with an automatic, differential, input current cancellation
front end. A proprietary front end passive sampling network
transparently removes the differential input current. This
enables external RC networks and high impedance sen-
sors to directly interface to the LTC2489 without external
amplifiers. The remaining common mode input current
is eliminated by either balancing the differential input im-
pedances or setting the common mode input equal to the
common mode reference (see the Automatic Differential
Input Current Cancellation section). This unique architec-
ture does not require on-chip buffers, thereby enabling
signals to swing beyond ground and VCC. Moreover, the
Initially, at power-up, the LTC2489 performs a conver-
sion. Once the conversion is complete, the device enters
the sleep state. In the sleep state, power consumption is
reduced by two orders of magnitude. The part remains in
the sleep state as long it is not addressed for a read/write
operation. The conversion result is held indefinitely in a
static shift register while the part is in the sleep state.
The device will not acknowledge an external request dur-
ing the conversion state. After a conversion is finished,
the device is ready to accept a read/write request. Once
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EVAL-AD5621EBZ | BOARD EVALUATION FOR AD5621 |
| V375C2E50BF2 | CONVERTER MOD DC/DC 2V 50W |
| NRS6010T2R2MMGF | INDUCTOR POWER 2.2UH 1.7A SMD |
| DC798B | BOARD DELTA SIGMA ADC LTC2480 |
| EVAL-AD7841EBZ | BOARD EVAL FOR AD7841 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DC1010A-C | 功能描述:BOARD DELTA SIGMA ADC LTC2487 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:Easy Drive™, QuikEval™ 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| 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 制造商全稱:INTRONICS 功能描述:1 WATT SINGLE OUTPUT DC-DC CONVERTERS |
| DC1011A-A | 功能描述:BOARD DELTA SIGMA ADC LTC2498 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:Easy Drive™, QuikEval™ 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。