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Analog Devices Inc. AD7910AKS-500RL7
- Part No.:
- AD7910AKS-500RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
AD7910AKS-500RL7.pdf
- Description:
- IC ADC 10BIT SRL 250KSPS SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,099
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Product details
Overview
AD7910AKS-500RL7 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-ideal for portable medical sensors and battery-powered data acquisition.
For engineers reviewing the AD7910AKS-500RL7 datasheet, AD7910AKS-500RL7 pinout, AD7910AKS-500RL7 application, or AD7910AKS-500RL7 equivalent, this page delivers verified specifications, SC70 package mapping, SPI-compatible serial interface timing, and real-world use cases for low-power, high-speed sampling in space-constrained embedded systems.
Technical Context
The AD7910AKS-500RL7 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). Its conversion is initiated on the falling edge of CS and clocked by SCLK, requiring exactly 14 SCLK cycles per 10-bit result with no pipeline delay.
It uses VDD as its reference source-eliminating external reference components-and supports flexible serial clock speeds from 10 kHz to 5 MHz. Power management includes full power-down mode (1 μA max), where conversion rate and average power scale directly with SCLK frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit-guarantees no missing codes; supports 1,024 discrete levels across full-scale range. |
| Throughput Rate | 250 kSPS maximum-enables real-time capture of signals up to ~125 kHz (Nyquist-limited). |
| SNR @ 100 kHz | 71 dB-supports >11.8 effective number of bits (ENOB) for precision sensor digitization. |
| Power @ 3 V / 250 kSPS | 3.6 mW typical-enables >100-hour operation on a 200 mAh coin cell in burst-sampling mode. |
| Analog Input Range | 0 V to VDD-simplifies signal conditioning by eliminating level-shifting for rail-to-rail sources. |
| Reference Source | Internally derived from VDD-removes need for external reference IC or resistor divider. |
| Package | 6-lead SC70 (2.0 mm × 1.25 mm × 0.9 mm)-fits into <2.5 mm² PCB area for ultra-compact designs. |
Pinout & Package
AD7910AKS-500RL7 is housed in a 6-lead SC70 package (JEDEC MO-203AA), with exposed pad not electrically connected. Pin 1 is VDD, Pin 2 is GND, Pin 3 is VIN, Pin 4 is SCLK, Pin 5 is SDATA, and Pin 6 is CS-all confirmed per Analog Devices Rev. C datasheet Figure 5 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Power supply input | Single 2.35–5.25 V rail powers analog core, digital logic, and internal reference-no separate AVDD/DVDD required. |
| GND (Pin 2) | Analog ground reference | Common return for VIN, internal T/H, and reference-must be star-connected to minimize noise coupling. |
| VIN (Pin 3) | Single-ended analog input | Accepts 0–VDD signals; 20 pF input capacitance requires careful driver impedance matching for settling. |
| SCLK (Pin 4) | Serial clock input | Drives both data transfer and internal SAR conversion timing; 5 MHz max enables 2.8 μs conversion time. |
| SDATA (Pin 5) | Serial data output | MSB-first 14-bit frame: 4 leading zeros + 10-bit result + 2 trailing zeros-SPI/QSPI/MICROWIRE compatible. |
| CS (Pin 6) | Chip select / conversion trigger | Falling edge initiates sampling and conversion; defines frame boundary for synchronous readout. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True single-cycle conversion: sample triggered by CS fall, result available after fixed 14-SCLK latency-enables deterministic timing control in closed-loop systems. |
| VDD-referenced architecture | Eliminates external reference component count and layout area while maintaining 0–VDD input range-reduces BOM cost and design risk. |
| Ultra-low power-down current | 1 μA max (50 nA typ) in full power-down-extends battery life during idle intervals without sacrificing wake-up speed (<1 μs recovery). |
| Wide supply voltage range | Operates from 2.35 V to 5.25 V-supports direct interfacing with Li-ion, Li-Po, or 3.3 V/5 V system rails without LDO regulation. |
| High input bandwidth | 13.5 MHz full-power bandwidth-accurately digitizes fast transients from piezoelectric sensors or optical detectors without external amplification. |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous acquisition of ECG or pulse oximetry analog signals in handheld diagnostic devices. IC Role / Device Role / Timing Role: Primary ADC capturing single-ended biopotential waveforms at 250 kSPS with 10-bit resolution and minimal power draw. Use Value: 3.6 mW typical power at 3 V enables >72 hours of continuous operation on a CR2032 cell; SC70 footprint allows integration into sub-2 cm² wearable form factors. |
Use Scenario: Periodic environmental monitoring (temperature, humidity, light) in remote IoT nodes powered by energy harvesting. IC Role / Device Role / Timing Role: Low-duty-cycle ADC activated only during measurement bursts, leveraging 1 μA power-down mode between samples. Use Value: Sub-μA quiescent current extends multi-year battery life; VDD-referenced input simplifies interface with unregulated supercapacitor storage. |
| Optical Sensor Interfaces | Industrial Handheld Testers |
Use Scenario: Digitizing photodiode or phototransistor outputs in compact optical smoke detectors or spectrophotometers. IC Role / Device Role / Timing Role: High-bandwidth front-end ADC handling fast-rising optical pulses with 13.5 MHz full-power bandwidth. Use Value: 71 dB SNR at 100 kHz ensures accurate amplitude measurement of weak optical signals; 20 pF input capacitance matches common transimpedance amplifier designs. |
Use Scenario: Signal conditioning in portable multimeters or insulation testers requiring fast, repeatable DC/AC voltage measurements. IC Role / Device Role / Timing Role: Precision sampling engine with ±0.5 LSB INL/DNL, supporting calibrated 3½-digit accuracy over temperature. Use Value: Guaranteed no missing codes and low THD (−72 dB) enable clean digitization of low-frequency test signals without post-processing correction. |
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); higher θJA (205.9°C/W vs. 340.2°C/W) but better thermal mass. | Better suited for thermally demanding industrial environments where board space permits larger footprint. | Select AD7910BRMZ-REEL when thermal dissipation or hand-soldering reliability outweighs size constraints. |
| ADS7822U | 12-bit, 200 kSPS, 8-lead SOIC; external reference required; 1.25 mW at 3 V/200 kSPS-lower resolution but lower power. | Preferred for cost-sensitive, non-critical instrumentation where 12-bit resolution is needed but 250 kSPS is unnecessary. | Choose ADS7822U only if external reference infrastructure already exists and throughput can be reduced to 200 kSPS. |
Compared with AD7910BRMZ-REEL, AD7910AKS-500RL7 saves >70% PCB area but trades off thermal margin; versus ADS7822U, it delivers 50 kSPS higher throughput and eliminates reference design complexity at the cost of slightly higher active power.
Availability
AD7910AKS-500RL7 is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, optical sensor interfaces, and industrial handheld testers requiring stable component supply and long-term production continuity.
Supply support for AD7910AKS-500RL7 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.
The AD7910AKS-500RL7 belongs to Analog Devices' precision SAR ADC product line, engineered for ultra-low-power, high-speed data acquisition in space- and energy-constrained applications such as wearables and remote sensing.
FAQ
What is the guaranteed resolution and linearity performance of the AD7910AKS-500RL7?
The AD7910AKS-500RL7 guarantees 10-bit resolution with ±0.5 LSB integral nonlinearity (INL) and ±0.5 LSB differential nonlinearity (DNL) across −40°C to +85°C. These values ensure no missing codes and monotonic transfer function-critical for closed-loop control and calibrated measurement systems using the AD7910AKS-500RL7.
Does the AD7910AKS-500RL7 require an external voltage reference?
No, the AD7910AKS-500RL7 derives its reference internally from the VDD supply, supporting an analog input range of 0 V to VDD. This eliminates external reference components and associated layout complexity, making the AD7910AKS-500RL7 ideal for compact, low-BOM-cost designs where supply rail stability meets system accuracy requirements.
What is the minimum and maximum supply voltage for reliable operation of the AD7910AKS-500RL7?
The AD7910AKS-500RL7 operates reliably from 2.35 V to 5.25 V. At 2.35 V, input high voltage (VINH) is specified at 1.8 V min; at 5.25 V, digital inputs tolerate up to 7 V absolute maximum. This wide VDD range allows direct connection to Li-ion batteries, 3.3 V logic rails, or 5 V legacy systems without regulation-key for flexible deployment of the AD7910AKS-500RL7.
How does the AD7910AKS-500RL7 manage power in low-duty-cycle applications?
The AD7910AKS-500RL7 supports full power-down mode with 1 μA maximum current (50 nA typical), entered via CS deassertion. Wake-up time is ≤1 μs, enabling rapid burst sampling. When paired with variable SCLK speed, average power scales linearly-e.g., reducing SCLK from 5 MHz to 1 MHz cuts dynamic power by ~80%, optimizing energy use in intermittent-sensing applications using the AD7910AKS-500RL7.
Which serial interface protocols is the AD7910AKS-500RL7 compatible with?
The AD7910AKS-500RL7 features an SPI-compatible serial interface that also supports QSPI™, MICROWIRE™, and generic DSP interfaces. It outputs 14-bit frames (4 leading zeros + 10-bit result + 2 trailing zeros) MSB-first on SDATA, synchronized to SCLK falling edges. No special framing or configuration registers are needed-ensuring plug-and-play integration with microcontrollers supporting standard SPI modes, including those driving the AD7910AKS-500RL7.
AD7910AKS-500RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- SPI, DSP
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- SC-70-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7910AKS-500RL7 FAQ
1.How can I place an order for AD7910AKS-500RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7910AKS-500RL7 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 AD7910AKS-500RL7 reliable?
The price and inventory of AD7910AKS-500RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7910AKS-500RL7 is usually 5 days.
3.What payment methods are accepted for AD7910AKS-500RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7910AKS-500RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7910AKS-500RL7?
AD7910AKS-500RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7910AKS-500RL7 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 AD7910AKS-500RL7?
For technical support, including AD7910AKS-500RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7910AKS-500RL7 requirements.
6.How does Aetrix verify that AD7910AKS-500RL7 is sourced from the original manufacturer or authorized distributors?
All AD7910AKS-500RL7 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 AD7910AKS-500RL7 meets industry standards.
7.What is the process for return or replacement of AD7910AKS-500RL7?
All AD7910AKS-500RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7910AKS-500RL7, 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 AD7910AKS-500RL7 part is unused and in its original packaging.
Return procedure for AD7910AKS-500RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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