- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10275 > LTC1852IFW (Linear Technology)IC A/D CONV 8CH 10BIT 48-TSSOP PDF資料下載
參數(shù)資料
| 型號： | LTC1852IFW |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC A/D CONV 8CH 10BIT 48-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 39 |
| 位數(shù)： | 10 |
| 采樣率（每秒）： | 400k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 15mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-TFSOP（0.240"，6.10mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 48-TSSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 8 個單端，單極；8 個單端，雙極；4 個差分，單極；4 個差分，雙極 |
LTC1852/LTC1853
18
18523fa
appear on the data outputs; BUSY goes high releasing the
processor, and the processor takes RD ( = CONVST) back
high and reads the new conversion data.
In ROM mode, the processor takes RD ( = CONVST) low,
starting a conversion and reading the previous conversion
result. After the conversion is complete, the processor can
read the new result and initiate another conversion.
MODES OF OPERATION
Direct Address Mode
The simplest mode of operation is the Direct Address
mode. This mode is selected when both the M1 and M0
pins are low. In this mode, the address input pins directly
control the MUX and the conguration input pins directly
control the input span. The address and conguration
input pins are enabled when WR is low. WR can be tied
low if the pins will be constantly driven or the rising edge
of WR can be used to latch and hold the inputs for as long
as WR is held high.
Scan Mode
Scan mode is selected when M1 is low and M0 is high.
This mode allows the converter to scan through all of
the input channels sequentially and repeatedly without
the user having to provide an address. The address
input pins (A2 to A0) are ignored but the DIFF, PGA and
UNI/BIP pins are still enabled when WR is low. As in the
direct address mode, WR can be held low or the rising
edge of WR can be used to latch and hold the information
on these pins for as long as WR is held high. The DIFF
pin selects the scan pattern. If DIFF is held low, the scan
pattern will consist of all eight channels in succession,
single-ended relative to COM (CH0-COM, CH1-COM,
CH2-COM, CH3-COM, CH4-COM, CH5-COM, CH6-COM,
CH7-COM, repeat). At the maximum conversion rate the
throughput rate for each channel would be 400ksps/8 or
50ksps. If DIFF is held high, the scan pattern will consist
of four differential pairs (CH0-CH1, CH2-CH3, CH4-CH5,
CH6-CH7, repeat). At the maximum conversion rate, the
throughput rate for each pair would be 400ksps/4 or
100ksps. It is possible to drive the DIFF input pin while
the part is in Scan mode to achieve combinations of
single-ended and differential inputs. For instance, if the
A0OUT pin is tied to the DIFF input pin, the scan pattern
will consist of four single-ended inputs and two differential
pairs (CH0-COM single-ended, CH1-COM single-ended,
CH2-CH3 differential, CH4-COM single-ended, CH5-COM
single-ended, CH6-CH7 differential, repeat).
The scan counter is reset to zero whenever the M0 pin
changes state so that the rst conversion after M0 rises
will be MUX Address 000 (CH0-COM single-ended or CH0-
CH1 differential depending on the state of the DIFF pin).
A conversion is initiated by the falling edge of CONVST.
After each conversion, the address counter is advanced
(by one if DIFF is low, by two if DIFF is high) and the MUX
address for the present conversion is available on the ad-
dress output pins (DIFFOUT, A2OUT to A0OUT) along with
the conversion result.
Program/Readback Mode
The LTC1852 and LTC1853 include a sequencer that can
be programmed to run a sequence of up to 16 locations
containing a MUX address and input conguration. The
MUX address and input conguration for each location
are programmed using the DIFF, A2 to A0, UNI/BIP and
PGA pins and are stored in memory along with an end-of-
sequence (EOS) bit that is generated automatically. The
six input address and conguration bits plus the EOS bit
can be read back by accessing the 7-bit readback status
word (S6-S0) through the data output pins. The sequencer
memory is a 16 × 7 block of memory represented by the
block diagram in Figure 10.
Figure 10. Sequencer Memory Block Diagram
LOCATION 0000
DIFF
A2
A1
A0
UNI/BIP
PGA
EOS
LOCATION 0001
LOCATION 0010
LOCATION 1110
LOCATION 1111
18523 F10
APPLICATIONS INFORMATION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7718BRU-REEL | IC ADC 24BIT R-R 8/10CH 28-TSSOP |
| V110A3V3H150B2 | CONVERTER MOD DC/DC 3.3V 150W |
| D38999/26ME6PNLC | CONN HSG PLUG 6POS STRGHT PINS |
| MS27505E9B98P | CONN RCPT 3POS BOX MNT W/PINS |
| D38999/26ME6AN | CONN HSG PLUG 6POS STRGHT PINS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1852IFW#PBF | 功能描述:IC A/D CONV 8CH 10BIT 48-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| LTC1852IFW#TR | 功能描述:IC A/D CONV 8CH 10BIT 48-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| LTC1852IFW#TRPBF | 功能描述:IC A/D CONV 8CH 10BIT 48-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| LTC1853CFW | 功能描述:IC A/D CONV 8CH 12BIT 48-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| LTC1853CFW#PBF | 功能描述:IC A/D CONV 8CH 12BIT 48-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。