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14-Bit, 8-Channel, 250 kSPS PulSAR ADC, SGM5208 Replace AD7949.
SGM5208-14 SGM5208-14.pdf
FEATURES

? Low-Power, Flexible Supply Range:

  2.7V to 5.5V Analog Supply
  8.7mW (250kSPS in Auto-NAP Mode, VA = 2.7V, 
  VBD = 2.7V) 
  14.2mW (500kSPS, VA = 2.7V, VBD = 2.7V) 
? Up to 500kSPS Sampling Rate
? Excellent DC Performance:
  ±1.2 LSB Typical, ±2 LSB Maximum INL at 2.7V 
  ±0.6 LSB Typical, -1, 1.5LSB Maximum DNL at 2.7V 
  14-Bit NMC Over Temperature
? Excellent AC Performance at 5V, fIN = 1kHz:
  80dB SNR, 87dB SFDR, -83dB THD
? Flexible Analog Input Arrangement:
  On-Chip 8 Channels Mux with Breakout
  Auto, Manual Channel Select and Trigger
? Other Hardware Features:
  On-Chip Conversion Clock (CCLK)
  Software, Hardware Reset
  Programmable Status, Polarity EOC/nINT
  Daisy-Chain Mode
  Global nCONVST (Independent of nCS)
  Deep, Nap, and Auto-NAP Power-Down Modes
  SPI, DSP Compatible Serial Interface
  Separate I/O Supply: 2.7V to VA
  SCLK up to 40MHz (VA = VBD = 5V)
? Available in Green TQFN-4×4-24L and TSSOP-24
  Packages
PIN CONFIGUTION
優勢替代
AD7949 AD7949.pdf

No.13395

FEATURES


14-bit resolution with no missing codes
8-channel multiplexer with choice of inputs
  Unipolar single-ended
  Differential (GND sense)
  Pseudobipolar
Throughput: 250 kSPS
? INL/DNL: ±0.5/±0.25 LSB typical
?  SINAD: 85 dB @ 20 kHz
? THD: ?100 dB @ 20 kHz
Analog input range: 0 V to VREF with VREF up to VDD
Multiple reference types
  Internal selectable 2.5 V or 4.096 V
  External buffered (up to 4.096 V)
  External (up to VDD)
Internal temperature sensor (TEMP)
Channel sequencer, selectable 1-pole filter, busy indicator
No pipeline delay, SAR architecture
Single-supply 2.3 V to 5.5 V operation with
  1.8 V to 5.5 V logic interface
Serial interface compatible with SPI, MICROWIRE,
  QSPI, and DSP
Power dissipation
  2.9 mW @ 2.5 V/200 kSPS
  10.8 mW @ 5 V/250 kSPS
? Standby current: 50 nA
? 20-lead 4 mm × 4 mm LFCSP package



PIN CONFIGUTION
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