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MFG:ADI D/C:09
Part Number: AD7674
MFG: ADI
D/C: 09
Description: The AD7674 is an 18-bit, 800 kSPS, charge redistribution SAR, fully differential analog-to-digital con...
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AD7674
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DataSheet
General Description
AD7674 General Description
The AD7674 is an 18-bit, 800 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 48-lead LQFP or 48-lead LFCSP packages with operation specified from 40°C to +85°C.
AD7674 Maximum Ratings
| Parameter | Rating |
| Analog Inputs IN+2, IN2, REF, REFBUFIN, REFGND to AGND |
AGND 0.3 V to AVDD + 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 | 700 mW |
| Internal Power Dissipation | 4 2.5 W |
| Junction Temperature | 150°C |
| Storage Temperature Range | 65°C to +150°C |
| Lead Temperature Range (Soldering 10 sec) |
300°C |
AD7674 Features
18-bit resolution with no missing codes
No pipeline delay (SAR architecture)
Differential input range: ±VREF (VREF up to 5 V)
Throughput: 800 kSPS (Warp mode) 666 kSPS (Normal mode) 570 kSPS (Impulse mode)
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: 98 mW typ @ 800 kSPS 78 mW typ@ 500 kSPS (Impulse mode) 160 µW @ 1 kSPS (Impulse mode)
48-lead LQFP or 48-lead LFCSP package
Pin-to-pin compatible upgrade of AD7676/AD7678/AD7679
No pipeline delay (SAR architecture)
Differential input range: ±VREF (VREF up to 5 V)
Throughput: 800 kSPS (Warp mode) 666 kSPS (Normal mode) 570 kSPS (Impulse mode)
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: 98 mW typ @ 800 kSPS 78 mW typ@ 500 kSPS (Impulse mode) 160 µW @ 1 kSPS (Impulse mode)
48-lead LQFP or 48-lead LFCSP package
Pin-to-pin compatible upgrade of AD7676/AD7678/AD7679
AD7674 Typical Application
High dynamic data acquisition
Geophone and hydrophone sensors
-∆ replacement (low power, multichannel)
Instrumentation
Spectrum analysis
Medical instruments
Geophone and hydrophone sensors
-∆ replacement (low power, multichannel)
Instrumentation
Spectrum analysis
Medical instruments
AD7674 Connection Diagram
AD7674
PDF/DataSheet Download
- Datasheet: AD7674
- File Size: 2547018 KB
- Manufacturer: AD
- Click here to Download
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