ADS8327系列介绍资料

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ADS8327

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2.7V 至 5.5V 16 位 500kSPS 串行模数转换器 (ADC)

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The ADS8327 is a low power, 16-bit, 500-kSPS analog-to-digital converter with a unipolar input. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold.

The ADS8328 is based on the same core and includes a 2-to-1 input MUX with programmable option of TAG bit output. Both the ADS8327 and ADS8328 offer a high-speed, wide voltage serial interface and are capable of chain mode operation when multiple converters are used.

These converters are available in a 16-lead TSSOP or 4×4 QFN packages and are fully specified for operation over the industrial –40°C to +85°C temperature range.

2.7-V to 5.5-V Analog Supply, Low Power:
- 10.6 mW (500 kHz, +VA = 2.7 V,
  +VBD = 1.8 V)
500-kHz Sampling Rate
Excellent DC Performance
- ±1.5 LSB Typ, ±2 LSB Max INL
- ±0.6 LSB Typ, ±1 LSB Max DNL
- 16-Bit NMC Over Temperature
- ±0.5 mV Max Offset Error at 2.7 V
- ±1 mV Max Offset Error at 5 V
Excellent AC Performance at f_I = 10 kHz with 91 dB SNR, 100 dB SFDR, –96 dB THD
Built-In Conversion Clock (CCLK)
1.65 V to 1.5×(+VA) I/O Supply
- SPI/DSP Compatible Serial
- SCLK up to 50 MHz
Comprehensive Power-Down Modes:
- Deep Power-Down
- Nap Power-Down
- Auto Nap Power-Down
Unipolar Input Range: 0 V to V_REF
Software Reset
Global CONVST (Independent of CS)
Programmable Status/Polarity EOC/INT
16-Pin 4×4 QFN or 16-Pin TSSOP Packages
Multi-Chip Daisy Chain Mode
Programmable TAG Bit Output
Auto/Manual Channel Select Mode

APPLICATIONS

Communications
Transducer Interface
Medical Instruments
Magnetometers
Industrial Process Control
Data Acquisition Systems
Automatic Test Equipment

Resolution (Bits)	16
Sample rate (max) (ksps)	500
Number of input channels	1
Interface type	SPI
Architecture	SAR
Input type	Single-ended
Rating	Catalog
Reference mode	External
Input voltage range (max) (V)	5.5
Input voltage range (min) (V)	0
Features	Daisy-Chainable, Oscillator
Operating temperature range (°C)	-40 to 85
Power consumption (typ) (mW)	10.6
Analog supply (min) (V)	2.7
Analog supply voltage (max) (V)	5.5
SNR (dB)	91
Digital supply (min) (V)	1.65
Digital supply (max) (V)	5.5

TSSOP (PW)	16	32 mm² 5 x 6.4
VQFN (RSA)	16	16 mm² 4 x 4

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ADS8327

2.7V 至 5.5V 16 位 500kSPS 串行模数转换器 (ADC)

4000-306-326