ic datasheet pdf-ads8201 ,pdf(2.2v to 5.5v, low-power, 12-bit, 100ksps, 8-ch data acq system).pdf

ADS8201 ADS8201
S534B –JULY 2009–REVISED MAY 2010
to , Low-Power, 12-Bit, 100kSPS, 8-Channel
Data Acquisition System with PGA and SPI™ Interface
Check for Samples: ADS8201
1FEATURES • Multi-Chip Ready and Fully Enabled:
234• Low-Power, Flexible Supply Range: – Global CONVST (Independent of CS)
– to Analog Supply • Power-Down Mode
– (100kHz, +VA = , +VD = ) • 24-Pin 4×4 QFN Package
– (100kHz, +VA = 5V, +VD = 5V)
• Up to 100kSPS Throughput Rate APPLICATIONS
• munications
• Excellent DC Performance:
• Transducer Interfaces
–± LSB typ, ± LSB max INL
• Portable Medical Instruments
–± LSB typ, ± LSB max DNL
• Data Acquisition Systems
–±6 LSB Offset Error at +VA =5V • GPS Chipsets
–±%FS Gain Error at +VA = 5V ...
• Flexible Analog Inputs:
– True Differential Input DESCRIPTION
– Differential/Unipolar Input Range (0 to VREF) The ADS8201 is a low-power, complete on-chip data
– TAG Bit Output acquisition system optimized for portable applications
that require direct connections, wide dynamic range,
– Programmable Averaging Function
and automatic operation with very low power
– Onboard, Eight Single-Ended/Four consumption. The device includes a 12-bit,
Differential Channel Mux: capacitor-based, essive approximation register
– High Input Impedance (SAR) analog-to-digital converter (ADC); a
high-performance, continuous-time programmable
– High-Performance PGA (Gain = 1/2/4/8)
gain amplifier (PGA); and a fully automatic scan,
– PGA Breakout 8-to-1 multiplexer (mux) with breakout to allow for
– Auto/Manual Channel Select with Gain system design flexibility.
– Auto/Manual Trigger Many other features are included to further optimize
– Mixed Type Partial Scan system operation. Conversion results may be saved
in an onboard first-in/first-out (FIFO) buffer and read
• Built-in Hardware Features:
out at a later time. Each channel has a gain setting
– On-chip Conv