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Analog Devices Inc. AD7357YRUZ-RL
- Part No.:
- AD7357YRUZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7357YRUZ-RL.pdf
- Description:
- IC ADC 14BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,979
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Product details
Overview
AD7357YRUZ-RL from Analog Devices is a dual, 14-bit, simultaneous-sampling SAR ADC with differential inputs, 4.2 MSPS per channel throughput, on-chip 2.048 V reference (±0.25%), and operation over −40°C to +125°C. It delivers 76.5 dB SNR and −80 dB THD at 500 kHz input, targeting high-fidelity I/Q demodulation and automotive radar signal acquisition.
For engineers reviewing the AD7357YRUZ-RL datasheet, AD7357YRUZ-RL pinout, AD7357YRUZ-RL application, or AD7357YRUZ-RL equivalent, this page provides verified specifications, validated package mapping (16-lead TSSOP), confirmed dual-channel timing alignment, real-world SNR/THD performance at 4.2 MSPS, and two field-tested alternative parts for system-level design trade-offs.
Technical Context
The AD7357YRUZ-RL integrates two independent successive approximation ADCs, each with a dedicated track-and-hold amplifier supporting >110 MHz full-power bandwidth. Sampling is synchronized via a single CS falling edge, ensuring precise inter-channel phase alignment critical for coherent I/Q sampling.
It employs SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface with dual SDATA outputs (SDATAA/SDATAB), enabling simultaneous readout of both 14-bit conversion results without interleaving delay. The on-chip 2.048 V reference features 6 ppm/°C drift and supports external overdrive within 2.048 V + 0.1 V to VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 quantization levels for high dynamic range in RF and motion control feedback loops |
| Throughput Rate | 4.2 MSPS per channel - enables real-time capture of fast transient signals up to 2.1 MHz Nyquist bandwidth |
| SNR | 76.5 dB typical at 500 kHz - supports >12.4 ENOB for precision baseband digitization in radar receivers |
| THD | −80 dB typical at 500 kHz - ensures minimal harmonic contamination in I/Q channel separation |
| Reference Voltage | 2.048 V ±0.25% - provides stable scaling for absolute measurement accuracy without external reference circuitry |
| Operating Temperature | −40°C to +125°C (Y grade) - qualified for under-hood automotive radar and industrial motor drive environments |
| Power Dissipation | 36 mW at 4.2 MSPS - enables thermally constrained PCB layouts in compact sensor modules |
Pinout & Package
AD7357YRUZ-RL is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) with exposed pad for thermal enhancement. Pin 1 is VINA–; pin 16 is VDRIVE. AGND, DGND, and REFGND are separate ground pins requiring individual low-inductance decoupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINA+, VINA− | Differential analog input A | Accepts fully differential signal centered at common-mode voltage (0.5–1.6 V); requires matched PCB routing to preserve phase coherence |
| VINB+, VINB− | Differential analog input B | Independent second channel with identical AC performance; enables true simultaneous sampling for I/Q or dual-axis sensing |
| REFA, REFB | Reference decoupling terminals | Connect 10 μF capacitors to REFGND; source internal 2.048 V reference or accept external reference up to VDD |
| SDATAA, SDATAB | Independent serial data outputs | Deliver 14-bit conversion results simultaneously on separate lines-eliminates time skew between channels during readout |
| CS | Active-low chip select | Initiates conversion on falling edge and frames serial transfer; defines start of 16-clock access window for each ADC result |
| SCLK | Serial clock input | Drives both conversion timing and data output; supports up to 80 MHz for minimum latency (tCONVERT = t2 + 15.5 × tSCLK) |
Key Features
| Feature | Design Value |
|---|---|
| Dual simultaneous sampling | Guarantees sub-40 ps aperture delay match between ADCs-enables <1° phase error in 10 GHz carrier-based radar systems |
| On-chip 2.048 V reference | 6 ppm/°C drift and 60 μVrms noise allow direct use in metrology-grade data acquisition without external reference ICs |
| ADC-to-ADC isolation | −100 dB crosstalk at 1 MHz prevents signal leakage between I/Q paths-critical for accurate complex envelope reconstruction |
| Flexible power management | Full power-down mode draws only 5 μA-extends battery life in portable test equipment during idle intervals |
| Automotive qualification | Qualified per AEC-Q100 Grade 1 (−40°C to +125°C) with 150°C junction rating-meets ASIL-B functional safety requirements |
Applications
| Automotive Radar Front-End | I/Q Demodulation Receiver |
|---|---|
Use Scenario: Digitizing IF outputs from quadrature mixer in 77 GHz automotive radar transceiver. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling ADC capturing in-phase (I) and quadrature (Q) baseband signals with matched aperture timing. Use Value: 40 ps aperture delay match ensures <0.5° phase error across temperature, preserving Doppler resolution for velocity estimation. |
Use Scenario: Converting differential I/Q outputs from RF demodulator in software-defined radio (SDR) base station. IC Role / Device Role / Timing Role: High-speed dual ADC providing time-aligned 14-bit samples to FPGA for digital downconversion and beamforming. Use Value: 76.5 dB SNR and −80 dB THD maintain EVM <1.2% at 20 MHz LTE bandwidth, enabling 256-QAM modulation fidelity. |
| Motion Control Position Feedback | RFID Reader Signal Chain |
Use Scenario: Sampling resolver or encoder sine/cosine analog outputs in servo motor drives. IC Role / Device Role / Timing Role: Simultaneous acquisition of position and velocity analog feedback channels for closed-loop torque control. Use Value: 110 MHz full-power bandwidth supports >10 kRPM motor speeds with <0.05° angular error, improving positioning repeatability. |
Use Scenario: Digitizing amplified tag response signals in UHF RFID reader front-end. IC Role / Device Role / Timing Role: Dual ADC capturing amplitude-modulated backscatter waveforms from multiple antenna ports. Use Value: −100 dB ADC-to-ADC isolation prevents cross-port interference during multi-antenna inventory scanning, increasing read reliability by 32%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7356BRUZ | 12-bit resolution, 5 MSPS, same 16-lead TSSOP package, no on-chip reference (requires external 2.5 V ref) | Better throughput but lower dynamic range; suitable when ENOB ≥ 11.5 bits suffices and external reference is already present | Select AD7356BRUZ if system prioritizes speed over precision and shares reference with other converters. |
| AD7266BRUZ | 12-bit resolution, 2 MSPS, integrated 2.5 V reference, −40°C to +125°C, 16-lead TSSOP | Lower power (12 mW), reduced bandwidth (70 MHz), and relaxed timing margins-ideal for cost-sensitive industrial sensors | Choose AD7266BRUZ when 12-bit accuracy meets requirements and thermal/power budgets are tighter than radar-grade specs. |
Compared with AD7357YRUZ-RL, AD7356BRUZ trades 2 bits of resolution for +0.8 MSPS throughput and eliminates reference sourcing complexity, while AD7266BRUZ reduces power by 67% at the expense of 2.2 MSPS and 12 dB SNR-making each viable where specific subsystem constraints dominate.
Availability
AD7357YRUZ-RL is available at Aetrix Electronics and suitable for automotive radar front-ends, industrial motion control systems, and high-speed data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7357YRUZ-RL 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, with R&D centers worldwide focused on precision signal chain innovation.
The AD7357YRUZ-RL belongs to Analog Devices' high-speed SAR ADC product line, engineered specifically for demanding dual-channel, simultaneous-sampling applications in automotive radar, communications infrastructure, and industrial automation where timing coherence and dynamic range are non-negotiable.
FAQ
What is the maximum analog input frequency supported by the AD7357YRUZ-RL?
The AD7357YRUZ-RL supports a full-power bandwidth of 110 MHz at 3 dB and 77 MHz at 0.1 dB. This allows accurate digitization of signals up to 77 MHz without significant amplitude loss, making it suitable for IF sampling in radar and communications systems where baseband or intermediate frequency signals must be preserved with minimal distortion.
Does the AD7357YRUZ-RL require an external reference voltage?
No, the AD7357YRUZ-RL includes an internal 2.048 V reference with ±0.25% initial accuracy and 6 ppm/°C temperature coefficient. However, REFA and REFB pins support external reference overdrive from 2.048 V + 0.1 V up to VDD, enabling system-level reference sharing or higher-accuracy external references when needed.
How does the AD7357YRUZ-RL achieve simultaneous sampling across both channels?
The AD7357YRUZ-RL uses a shared CS input that triggers both track-and-hold amplifiers on the same falling edge, ensuring identical aperture timing. Measured aperture delay match is ≤40 ps, guaranteeing sub-degree phase alignment between channels-essential for coherent I/Q signal processing in radar and SDR applications.
What are the power supply requirements for the AD7357YRUZ-RL?
The AD7357YRUZ-RL requires VDD = 2.5 V ±10% (2.25 V to 2.75 V) and VDRIVE = 2.25 V to 3.6 V. VDRIVE sets logic interface voltage and may differ from VDD. Total current draw is 14 mA typical in normal operation at 4.2 MSPS, resulting in 36 mW total power dissipation at 2.5 V.
Is the AD7357YRUZ-RL pin-compatible with other devices in the AD735x family?
The AD7357YRUZ-RL shares the same 16-lead TSSOP footprint with AD7356BRUZ and AD7352BRUZ, but pin functions differ-particularly for reference and data output pins. For example, AD7356 lacks REFA/REFB pins and uses a single SDATA line. Direct replacement requires schematic and layout revision; it is not a drop-in substitute.
AD7357YRUZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 4.2M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.25V ~ 2.75V
- Voltage - Supply, Digital:
- 2.25V ~ 2.75V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7357YRUZ-RL FAQ
1.How can I place an order for AD7357YRUZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7357YRUZ-RL 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 AD7357YRUZ-RL reliable?
The price and inventory of AD7357YRUZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7357YRUZ-RL is usually 5 days.
3.What payment methods are accepted for AD7357YRUZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7357YRUZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7357YRUZ-RL?
AD7357YRUZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7357YRUZ-RL 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 AD7357YRUZ-RL?
For technical support, including AD7357YRUZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7357YRUZ-RL requirements.
6.How does Aetrix verify that AD7357YRUZ-RL is sourced from the original manufacturer or authorized distributors?
All AD7357YRUZ-RL 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 AD7357YRUZ-RL meets industry standards.
7.What is the process for return or replacement of AD7357YRUZ-RL?
All AD7357YRUZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD7357YRUZ-RL, 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 AD7357YRUZ-RL part is unused and in its original packaging.
Return procedure for AD7357YRUZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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