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Analog Devices Inc. AD7910AKSZ-REEL7
- Part No.:
- AD7910AKSZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
AD7910AKSZ-REEL7.pdf
- Description:
- IC ADC 10BIT SAR SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,702
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Product details
Overview
AD7910AKSZ-REEL7 from Analog Devices is a 10-bit, 250 kSPS successive approximation ADC in a 6-lead SC70 package, operating from a single 2.35 V to 5.25 V supply. It features 71 dB SNR at 100 kHz input, 3.6 mW typical power at 3 V/250 kSPS, and internal VDD-referenced conversion with 0 V to VDD analog input range. It serves as a high-speed, low-power data acquisition front-end in portable instrumentation.
For engineers reviewing the AD7910AKSZ-REEL7 datasheet, AD7910AKSZ-REEL7 pinout, AD7910AKSZ-REEL7 application, or AD7910AKSZ-REEL7 equivalent, key selection criteria include guaranteed 10-bit no-missed-codes performance, SC70 footprint compatibility, SPI-compatible serial interface timing (14 SCLK cycles), aperture jitter of 30 ps typ, and full power-down current ≤1 μA.
Technical Context
The AD7910AKSZ-REEL7 implements a charge redistribution SAR architecture with integrated track-and-hold, enabling accurate sampling of input frequencies up to 13.5 MHz (–3 dB) and 2 MHz (–0.1 dB). Conversion is initiated on the falling edge of CS and clocked by SCLK, with no pipeline delay and deterministic 2.8 μs max conversion time at 5 MHz SCLK.
It uses VDD as its reference source, eliminating external reference components and supporting rail-to-rail analog input (0 V to VDD). Digital interface is SPI-/QSPI-/MICROWIRE-/DSP-compatible, with SDATA output MSB-first and four leading zeros followed by 10-bit data plus two trailing zeros.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits - guarantees monotonic transfer function and no missed codes across full temperature range. |
| Throughput Rate | 250 kSPS max - supports real-time sampling of signals up to ~125 kHz Nyquist bandwidth. |
| SNR @ 100 kHz | 71 dB typ - enables >11.5 ENOB for precision measurement in battery-powered sensors. |
| Power @ 3 V | 3.6 mW typ - allows continuous 250 kSPS operation in sub-10 mW system power budgets. |
| Aperture Jitter | 30 ps typ - limits sampling uncertainty to <0.05 LSB at 100 kHz input, preserving dynamic accuracy. |
| Full Power-Down Current | 1 μA max - reduces idle power by >3000× vs active mode, critical for duty-cycled sensing. |
| Input Voltage Range | 0 V to VDD - eliminates level-shifting circuitry when interfacing with same-supply analog front-ends. |
Pinout & Package
AD7910AKSZ-REEL7 is housed in a 6-lead SC70 package (2.0 mm × 1.25 mm × 0.9 mm), optimized for space-constrained portable designs. Thermal resistance θJA = 340.2°C/W reflects compact thermal profile requiring minimal PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Power Supply Input | Single 2.35 V–5.25 V supply powering analog core, digital logic, and internal reference - no external reference needed. |
| GND (Pin 2) | Analog Ground Reference | Common return for analog input and internal circuitry; must be separated from digital ground to preserve 71 dB SNR. |
| VIN (Pin 3) | Analog Input Channel | Single-ended input accepting 0 V to VDD range; 20 pF input capacitance requires low-impedance drive for <250 ns acquisition. |
| SCLK (Pin 4) | Serial Clock Input | Controls both data readout timing and internal SAR conversion clock - 5 MHz max frequency defines 2.8 μs conversion time. |
| SDATA (Pin 5) | Serial Data Output | Three-state CMOS output delivering 14-bit frame (4 leading zeros + 10-bit result + 2 trailing zeros) MSB-first on SCLK falling edge. |
| CS (Pin 6) | Chip Select Input | Active-low signal initiating sample acquisition on falling edge and framing serial data transfer - minimum pulse width 10 ns. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Deterministic 2.8 μs conversion time enables precise timing control in closed-loop systems without latency compensation. |
| VDD-referenced architecture | Eliminates external reference IC and associated layout complexity while maintaining 0 V to VDD full-scale range. |
| Flexible power management | 1 μA max power-down current and 50 nA typical allow microcontroller-gated sampling with <1 μs wake-up (tPOWER-UP ≤1 μs). |
| SPI-compatible serial interface | Direct connection to standard microcontroller SPI peripherals without level shifters or protocol translation logic. |
| Wide supply range | Operates from 2.35 V to 5.25 V - supports direct integration into 3.3 V or 5 V systems and brown-out tolerant battery operation. |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
|
Use Scenario: Continuous acquisition of ECG or pulse oximetry signals in handheld diagnostic devices powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Primary analog-to-digital converter capturing biopotential waveforms at 250 kSPS with 71 dB SNR and rail-to-rail input range. Use Value: 3.6 mW typical power at 3 V enables >100 hours of continuous logging on a single CR2032 cell while preserving clinical-grade signal fidelity. |
Use Scenario: Environmental monitoring node measuring temperature, humidity, and gas concentration over multi-day deployments. IC Role / Device Role / Timing Role: Low-power SAR ADC performing burst-mode sampling every 10 seconds, entering full power-down between conversions. Use Value: 1 μA max power-down current minimizes quiescent drain, extending battery life beyond 2 years in intermittent-sampling applications. |
| Industrial Handheld Testers | Optical Sensor Interfaces |
|
Use Scenario: Multifunction field tester acquiring voltage, current, and resistance readings with autoranging and real-time display. IC Role / Device Role / Timing Role: High-speed front-end ADC supporting 250 kSPS sampling for fast settling autoranging and noise rejection via oversampling. Use Value: 13.5 MHz full-power bandwidth and 30 ps aperture jitter ensure accurate capture of transient events during probe contact bounce or switching transients. |
Use Scenario: Precision photodiode or pyroelectric sensor readout in smoke detectors or spectroscopy modules. IC Role / Device Role / Timing Role: Single-supply ADC digitizing low-level analog outputs from transimpedance amplifiers with minimal external components. Use Value: Internal VDD reference and 0 V to VDD input range simplify analog front-end design, reducing BOM count and calibration overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7910BRMZ-REEL | Same die, 8-lead MSOP package (3 mm × 3 mm); θJA = 205.9°C/W vs SC70's 340.2°C/W. | Better thermal performance and larger pad spacing eases hand-soldering and rework; occupies 3× PCB area. | Select AD7910BRMZ-REEL for prototyping, thermal-limited environments, or where MSOP footprint is already standardized. |
| ADS7822U | 12-bit, 200 kSPS, 8-lead SOIC; requires external reference; 1.25 mW at 3 V/200 kSPS. | Higher resolution but lower speed and fixed SOIC-8 footprint; no internal reference necessitates additional components. | Select ADS7822U only if 12-bit resolution is mandatory and 50 kSPS speed penalty and external reference are acceptable. |
Compared with AD7910BRMZ-REEL, AD7910AKSZ-REEL7 saves >60% board area and suits ultra-compact designs, while ADS7822U trades speed and integration for resolution - neither offers pin compatibility, so layout changes are required for substitution.
Availability
AD7910AKSZ-REEL7 is available at Aetrix Electronics and suitable for battery-powered systems, portable medical instruments, and industrial handheld testers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AD7910AKSZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD7910AKSZ-REEL7 belongs to Analog Devices' precision SAR ADC product line, engineered for space- and power-constrained data acquisition in portable and battery-operated equipment.
FAQ
What is the maximum sampling rate supported by the AD7910AKSZ-REEL7?
The AD7910AKSZ-REEL7 supports a maximum throughput rate of 250 kSPS, achieved with a 5 MHz serial clock and 14 SCLK cycles per conversion. This rate is guaranteed across the full operating temperature range (−40°C to +85°C) and supply voltage range (2.35 V to 5.25 V), making AD7910AKSZ-REEL7 suitable for real-time signal capture in portable instrumentation.
Does the AD7910AKSZ-REEL7 require an external voltage reference?
No, the AD7910AKSZ-REEL7 uses an internal reference derived from the VDD supply, enabling a full-scale analog input range of 0 V to VDD. This eliminates the need for external reference components, simplifying layout and reducing BOM cost - a key advantage confirmed in the AD7910/AD7920 Rev. C datasheet Section "General Description" and "Circuit Information".
What package type is used for the AD7910AKSZ-REEL7?
The AD7910AKSZ-REEL7 is packaged in a 6-lead SC70 (2.0 mm × 1.25 mm × 0.9 mm), as explicitly shown in Figure 5 ("6-Lead SC70 Pin Configuration") and Table 4 ("Absolute Maximum Ratings") of the AD7910/AD7920 Rev. C datasheet. This compact package supports high-density PCB layouts in space-constrained applications like wearable sensors.
How does the power consumption of the AD7910AKSZ-REEL7 compare between active and power-down modes?
In normal operational mode at 3 V/250 kSPS, AD7910AKSZ-REEL7 consumes 3.6 mW typ (1.4 mA max). In full power-down mode, it draws ≤1 μA (typically 50 nA), reducing power by over 3000×. This behavior is documented in Tables 1 and 3 of the Rev. C datasheet and enables aggressive duty-cycling in battery-powered systems using AD7910AKSZ-REEL7.
Is the AD7910AKSZ-REEL7 compatible with standard SPI interfaces?
Yes, the AD7910AKSZ-REEL7 features an SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface. It uses CS (active-low chip select), SCLK (serial clock), and SDATA (data out) pins, with data clocked on the falling edge of SCLK in MSB-first format. This compatibility is confirmed in the "Features" and "Serial Interface" sections of the AD7910/AD7920 Rev. C datasheet.
AD7910AKSZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- Supply
- Voltage - Supply, Analog:
- 2.35V ~ 5.25V
- Voltage - Supply, Digital:
- 2.35V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- SC-70-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7910AKSZ-REEL7 FAQ
1.How can I place an order for AD7910AKSZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7910AKSZ-REEL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7910AKSZ-REEL7 reliable?
The price and inventory of AD7910AKSZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7910AKSZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7910AKSZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7910AKSZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7910AKSZ-REEL7?
AD7910AKSZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7910AKSZ-REEL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7910AKSZ-REEL7?
For technical support, including AD7910AKSZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7910AKSZ-REEL7 requirements.
6.How does Aetrix verify that AD7910AKSZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7910AKSZ-REEL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7910AKSZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7910AKSZ-REEL7?
All AD7910AKSZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7910AKSZ-REEL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7910AKSZ-REEL7 part is unused and in its original packaging.
Return procedure for AD7910AKSZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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