參數(shù)資料
型號： AS8510-ASST-500
廠商： ams
文件頁數(shù)： 12/47頁
文件大?。?/td> 0K
描述： IC BATTERY MANAGEMENT 20-SSOP
產(chǎn)品培訓(xùn)模塊： AS8510 Data Acquisition IC
標(biāo)準(zhǔn)包裝： 1
類型： 電池管理
輸入類型： 模擬，數(shù)字
輸出類型： 模擬，數(shù)字
接口： SPI 串行
電流 - 電源： 5.5mA
安裝類型： 表面貼裝
封裝/外殼： 20-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 20-SSOP
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： AS8510-ASST-500DKR
AS8510
Data Acquisition Device for Battery Sensors
Revision 3.5
1 - 46
1 General Description
The AS8510 is a virtually offset free, low noise, two channel
measurement device. It is tailored to accurately measure battery
current from mA range up to kA range in conjunction with a 100
Ω
shunt resistor in series with the battery rail. Through the second
measurement channel it enables capture of, either battery voltage
synchronous with the current measurement, or, measure the analog
output of an internal or external temperature sensor. Both channels
are matched and can either measure small signals up to ±160 mV
versus ground, through programmable gain amplifier or larger
signals in the 0 to 1V range without the amplifier.
After analog to digital conversion and digital filtering, the resulting
16-bit digital words are accessible through 4-wire standard serial
interface.The device includes a number of additional features
explained in the next section.
2 Key Features
3.3V supply voltage
Two High resolution 16 bit
ΣΔ A/D converters
Programmable sampling to enable data throughputs from less
than 1Hz to 8kHz
Zero Offset for both channels
Independent control of data rate on both channels
Precision, low noise, programmable gain amplifiers for both
channels with gains 5, 25, 40, 100 to support wide dynamic
ranges.
Option for multiplexing either one differential
input, or two single ended inputs or the internal temperature
sensor on one channel
Programmable current source for external temperature sensor
connectable to any of the inputs
High precision and high stability 1.2V reference voltage source
Digital signal processing with filter options for both channels
Four operating modes providing
- Continuous data acquisition (or)
- Periodic single-shot acquisition, (or)
- Continuous acquisition on threshold crossing of programmed
current levels (or)
- A combination of the above
On chip high-precision 4MHz RC oscillator or option for external
clock
-40C to +125C ambient operation
AEC - Q100 automotive qualified
Internal chip ID for full traceability
SSOP-20 pin package
3 Applications
The AS8510 is ideal for shunt based batteries sensor. For high-side
current sensing, the input signal may be conditioned using ams
device AS8525 before applying to this device.
VBAT_IN
DVDD
SDO
SDI
SCLK CS
AVDD
INT
CLK
DVSS
RSHH
RSHL
ETR
VCM
ETS
CHOP_CLK
MEN
VBAT_GND
Internal Temperature Sensor
PGA
16-bit Sigma-Delta ADC
Serial Interface
Oscillators
FIR / MA
Analog Common Mode
Chopper
MUX and
Chopper
Bandgap Reference
AVSS
REF
AS8510
Prog-Cur
Source
Figure 1. AS8510 Block Diagram
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