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Features
- 16 Bits Resolution with No Missing Codes
- On-board Low Drift Reference with Buffer and Temperature Sensor
- Differential Input Range: ±VREF (VREF up to 2.5V)
- Throughput:
3 MSPS (Wideband Warp and Warp Mode)
2 MSPS (Normal Mode)
1.25 MSPS (Impulse Mode) - INL ±2 LSB Max (±30 ppm of FS)
- SINAD: 89 dB Typ @ 100 kHz
- THD: -103 dB Typ @ 100 kHz
- Parallel (16 or 8 bits bus) and Serial 5 V/3.3 V/2.5 V Interface
- SPI®/QSPI™/MICROWIRE™/DSP Compatible
- No Pipeline Delay ( SAR architecture )
- Single 2.5 V Supply Operation
- Power Dissipation: 70 mW Typ @ 3 MSPS With REF
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The AD7621 is a 16-bit, 3 MSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates from a single 2.5 V power supply. The part contains a high-speed 16-bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports. It features a very high sampling rate mode (Wideband Warp) for undersampling applications and, for asynchronous conversion rate applications, a fast mode (Normal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput. Operation is specified from −40°C to +85°C.
It is available in a 48-lead LQFP or a 48-lead LFCSP with operation specified from –40°C to +85°C.
PRODUCT HIGHLIGHTS
- Fast Throughput.
The AD7621 is a 3 MSPS, charge redistribution, 16-bit SAR ADC. - Superior Linearity.
The AD7621 has no missing 16-bit code. - Internal Reference.
The AD7621 has a 2.048 V internal reference with a typical drift of ±7 ppm/°C. - Single-Supply Operation.
The AD7621 operates from a 2.5 V single supply and typically dissipates 65 mW. In impulse mode, its power dissipation decreases with the throughput. - Serial or Parallel Interface.
Versatile parallel (16- or 8-bit bus) or 2-wire serial interface arrangement compatible with 2.5 V, 3.3 V, or 5 V logic.
APPLICATIONS
- Medical instruments
- High speed data acquisition
- Digital signal processing
- Communications
- Instrumentation
- Spectrum analysis
- ATE
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AD7621
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7621ACPZ |
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
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| AD7621ASTZ |
48-Lead LQFP (7mm x 7mm)
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| AD7621ASTZRL |
48-Lead LQFP (7mm x 7mm)
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- AD7621ACPZ
- Pin/Package Drawing
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48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
- Documentation
-
HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7621ASTZ
- Pin/Package Drawing
-
48-Lead LQFP (7mm x 7mm)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7621ASTZRL
- Pin/Package Drawing
-
48-Lead LQFP (7mm x 7mm)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Jun 9, 2021
- 20_0126
Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea
AD7621ACPZ
PRODUCTION
Sep 13, 2017
- 16_0077
CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.
Jun 8, 2009
- 09_0103
QFP Assembly Transfer from STATSChipPAC Singapore(SCS) to STATSChipPAC China(SCC), Amkor Philippines (ATP), and Amkor Korea (ATK)
AD7621ASTZRL
PRODUCTION
Jan 5, 2009
- 07_0077
Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
Filter by Model
Part Models
Product Lifecycle
PCN
Jun 9, 2021
- 20_0126
Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea
AD7621ACPZ
PRODUCTION
Sep 13, 2017
- 16_0077
CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.
Jun 8, 2009
- 09_0103
QFP Assembly Transfer from STATSChipPAC Singapore(SCS) to STATSChipPAC China(SCC), Amkor Philippines (ATP), and Amkor Korea (ATK)
AD7621ASTZRL
PRODUCTION
Jan 5, 2009
- 07_0077
Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
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Ultraprecision, Low Noise, 2.500 V XFET® Voltage References |
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Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
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Ultralow Noise, LDO XFET® 2.5V Voltage Reference w/Current Sink and Source |
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Shunt Voltage References1 |
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Single-Ended to Differential Amplifiers2 |
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RECOMMENDED FOR NEW DESIGNS |
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RECOMMENDED FOR NEW DESIGNS |
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