- 您现在的位置：买卖IC网 > PDF目录1834 > LTC6802IG-1#TRPBF (Linear Technology)IC MONITOR BATT STACK MC 44-SSOP PDF资料下载
参数资料
| 型号： | LTC6802IG-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 35/38页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR BATT STACK MC 44-SSOP |
| 标准包装： | 2,000 |
| 功能： | 电池监控器 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4 V ~ 50 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-FSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 44-SSOP |
| 包装： | 带卷 (TR) |
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页第33页第34页当前第35页第36页第37页第38页
LTC6802-1
APPLICATIONS INFORMATION
Converter Details
The LTC6802-1’s ADC has a second order delta sigma
modulator followed by a Sinc2, finite impulse response
(FIR) digital filter. The front-end sample rate is 512ksps,
which greatly reduces input filtering requirements. A
simple 16kHz, 1 pole filter composed of a 100Ω resistor
and a 0.1μF capacitor at each input will provide adequate
filtering for most applications. These component values
will not degrade the DC accuracy of the ADC.
10
0
–10
–20
–30
–40
–50
Each conversion consists of two phases – an autozero
–60
10
100
1k 10k
100k
phase and a measurement phase. The ADC is autozeroed
FREQUENCY (Hz)
68021 F20
at each conversion, greatly improving CMRR. The second
half of the conversion is the actual measurement.
Noise Rejection
Figure 21 shows the frequency response of the ADC.
The rolloff follows a Sinc2 response, with the first notch
at 4kHz. Also shown is the response of a 1 pole, 850Hz
filter (187μs time constant) which has the same integrated
response to wideband noise as the LTC6802-1’s ADC,
which is about 1350Hz. This means that if wideband noise
is applied to the LTC6802-1 input, the increase in noise
seen at the digital output will be the same as an ADC with
a wide bandwidth (such as a SAR) preceded by a perfect
1350Hz brickwall lowpass filter.
Thus if an analog filter is placed in front of a SAR converter
to achieve the same noise rejection as the LTC6802-1 ADC,
Figure 21. Noise Filtering of the LTC6802-1 ADC
the SAR will have a slower response to input signals. For
example, a step input applied to the input of the 850Hz filter
will take 1.55ms to settle to 12 bits of precision, while the
LTC6802-1 ADC settles in a single 1ms conversion cycle.
This also means that very high sample rates do not provide
any additional information because the analog filter limits
the frequency response.
While higher order active filters may provide some im-
provement, their complexity makes them impractical for
high-channel count measurements as a single filter would
be required for each input.
Also note that the Sinc2 response has a 2nd order rolloff
envelope, providing an additional benefit over a single
pole analog filter.
68021fa
35
相关PDF资料 |
PDF描述 |
|---|---|
| LTC6803HG-1#TRPBF | IC MONITOR BATT STACK 44-SSOP |
| LTC692CN8 | IC MPU SUPERVISORY CIRCUIT 8-DIP |
| LTC6943HGN#TRPBF | IC BUILDNG BLK SWCAP DUAL 16SSOP |
| LTC695ISW#TRPBF | IC MPU SUPERVISRY CIRCUIT 16SOIC |
| LTC699IN8#PBF | IC MPU SUPERVISORY CIRCUIT 8-DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6802IG-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Multicell Addressable Battery Stack Monitor |
| LTC6802IG-2#3ZZPBF | 制造商:Linear Technology 功能描述: |
| LTC6802IG-2#PBF | 功能描述:IC MONITOR BATT STACK 44-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC6802IG-2#PBF | 制造商:Linear Technology 功能描述:IC BATTERY MONITOR LI-ION 50V SSOP44 |
| LTC6802IG-2#TRPBF | 功能描述:IC MONITOR BATT STACK 44-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。