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AD7678

Features: ·18-bit resolution with no missing codes·No pipeline delay (SAR architecture)·Differential input range: ±VREF (VREF up to 5 V)·Throughput: 570 kSPS·INL: ±2.5 LSB max (±9.5 ppm of full scale)·Dynamic range : 103 dB typ (VREF = 5 V)·S/(N+D): 100 dB typ @ 2 kHz (VREF = 5 V)·Parallel (18-,16...

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SeekIC No. : 004270640 Detail

AD7678: Features: ·18-bit resolution with no missing codes·No pipeline delay (SAR architecture)·Differential input range: ±VREF (VREF up to 5 V)·Throughput: 570 kSPS·INL: ±2.5 LSB max (±9.5 ppm of full scal...

AD7678 Data Sheet

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Part Number:
AD7678
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

·18-bit resolution with no missing codes
·No pipeline delay (SAR architecture)
·Differential input range: ±VREF (VREF up to 5 V)
·Throughput: 570 kSPS
·INL: ±2.5 LSB max (±9.5 ppm of full scale)
·Dynamic range : 103 dB typ (VREF = 5 V)
·S/(N+D): 100 dB typ @ 2 kHz (VREF = 5 V)
·Parallel (18-,16-, or 8-bit bus) and serial 5 V/3 V interface
·SPI®/QSPI™/MICROWIRE™/DSP compatible
·On-board reference buffer
·Single 5 V supply operation
·Power dissipation: 76 mW @ 500 kSPS 150 µW @ 1 kSPS
·48-lead LQFP or 48-lead LFCSP package
·Pin-to-pin compatible upgrade of AD7674/AD7676/AD7678




Application

`CT scanners
`High dynamic data acquisition
`Geophone and hydrophone sensors
`-∆ replacement (low power, multichannel)
`Instrumentation
`Spectrum analysis
`Medical instruments




Specifications

Parameter Rating
Analog Inputs
IN+2, IN2, REF, REFBUFIN, REFGND
to AGND
AVDD + 0.3 V to
AGND 0.3 V
Ground Voltage Differences
AGND, DGND, OGND
±0.3 V
Supply Voltages
AVDD, DVDD, OVDD
AVDD to DVDD, AVDD to OVDD
DVDD to OVDD
Digital Inputs
0.3 V to +7 V
±7 V
0.3 V to +7 V
0.3 V to DVDD + 0.3 V
Internal Power Dissipation3
Internal Power Dissipation4
Junction Temperature
Storage Temperature Range
Lead Temperature Range
(Soldering 10 sec)		 700 mW
2.5 W
150°C
65°C to +150°C

300°C

1Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
2See An section. alog Inputs
3Specification is for device in free air: 48-Lead LQFP: JA = 91°C/W, JC = 30°C/W.
4 Specification is for device in free air: 48-Lead LFCSP: JA = 26°C/W.



Resolution (Bits) 18bit
T-Put Rate 100kSPS
# Chan 1
Supply V Single(+5)
Pwr Diss 26mW
Interface Byte,Par,Ser,SPI
Ain Range (2Vref) p-p,4 V p-p
SNR (dB) 101dB
Pkg Type CSP,QFP





Description

The AD7679 is an 18-bit, 570 kSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates on a single 5 V power supply. The part contains a high speed 18-bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports.

The part is available in a 48-lead LQFP or 48-lead LFCSP with operation specified from 40°C to +85°C.






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