AS8510 Factsheet

Battery Sensing
www.ams.com/AS8510
AS8510 – 2-Channel data acquisition device
We provide innovative
analog solutions to
-2 independent and matched acquisition channels
-Programmable gain amplifiers, 16 bit ADCs
the most challenging
applications in sensor
-Trimmed precision reference
and sensor interfaces,
-Offset free system, active compensation
power management,
and wireless.
-Small SSOP-20 package
General Description
The AS8510 is designed for synchronous measurement of two independent signals
through separate ADC channels. 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 amplifier.
After analog to digital conversion and digital filtering, the resulting digital values are
accessible through 4 wire serial interface.
Specifications
Features
Operating Supply Range [V]
3.0 to 3.6
Non-operating Supply Range[V]
-0.3 to 5
Operating Temperature [°C]
-40 to 125 Ambient
Typical standby quiescent current in standby mode
[µA]
40
Programmable ADC Sampling rate [Hz]
<1-8000
Reference voltage [V]
1.22
PGA max. settling time [µs]
45
PGA gains
5, 25, 40, 100
PGA common mode input range vs. AVSS [mV]
-160 / +200
RC Oscillator frequency [MHz]
4,096
- 3.3 V supply voltage
- Two independent, fully differential, high resolution 16 bit ADCs with
programmable oversampling ratio
- Precision low noise, low drift programmable gain amplifiers
- Offset auto zero architecture on both channels
- RC oscillators for normal and standby mode
- Internal temperature sensor
- Precision on chip reference
- Optional digital 300 Hz low pass filters for both channels
- Normal and standby operating modes
- 4 wire micro controller interface
- Low power monitoring mode with wake up
- Programmable current source for input terminals
- Unique chip ID for traceability
- SSOP-20 package
AS8510 Block Diagram
REF
AVDD
DVDD
1.22V
Preference
Internal Temp
Oscillators
ETR
ETS
MUX and
chopper
VBAT_IN
16 bit converter
PGA
VBAT_GND
MEN
Decimators,
FIR filters,
state machine
AS8510
RSHH
CHOP_CLK
INT
CLK
Chopper
RSHL
PGA
16 bit converter
1.65v analog
ground
AVSS
AGND
Serial interface/control
registers
SCLK
CS
SDI
SDO
DVSS
www.ams.com
[email protected]
© 06/2012 by ams
Subject to change without notice
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ams AG
Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria
Phone +43 3136 500-0 · Fax +43 3136 525-01
Sales Offices Worldwide
[email protected]
[email protected]
[email protected]
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