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Analog Devices Inc. AD7693BCPZRL7
- Part No.:
- AD7693BCPZRL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
AD7693BCPZRL7.pdf
- Description:
- IC ADC 16BIT SAR 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,893
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Product details
Overview
AD7693BCPZRL7 from Analog Devices is a 16-bit successive approximation ADC with true differential input, ±0.5 LSB INL/DNL max, 500 kSPS throughput, and no pipeline delay-designed for high-precision data acquisition in battery-powered instrumentation and seismic systems.
For engineers reviewing the AD7693BCPZRL7 datasheet, AD7693BCPZRL7 pinout, AD7693BCPZRL7 application, or AD7693BCPZRL7 equivalent, this page delivers verified specs, validated MSOP-10 pin functions, real-world use cases in medical instruments and DVMs, and two confirmed alternative parts with documented functional and interface differences.
Technical Context
The AD7693BCPZRL7 implements a charge redistribution SAR architecture with on-chip track-and-hold, enabling zero-latency conversion and full-scale step response in 400 ns. Its differential input stage supports ±VREF range with 65 dB CMRR at 250 kHz and accepts VREF up to VDD (5.5 V).
Digital interfacing uses a proprietary SPI-compatible serial port with selectable CS or daisy-chain mode, 1.8 V–5 V logic compatibility via dedicated VIO, and optional busy indicator-enabling multi-ADC synchronization without external timing control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes-guarantees monotonicity and full code coverage across temperature. |
| Throughput | 500 kSPS maximum-supports real-time sampling of signals up to 9 MHz −3 dB input bandwidth. |
| INL / DNL | ±0.5 LSB max-ensures <±8 ppm FSR linearity error for precision measurement applications. |
| SINAD / SNR | 96 dB at 1 kHz-delivers 15.9 ENOB, suitable for 16-bit dynamic range requirements. |
| Power @ 500 kSPS | 18 mW at 5 V-achieves 40 nJ/conversion efficiency, critical for low-power portable designs. |
| Reference Range | 0.5 V to VDD-allows flexible scaling from 2.5 V to 5.5 V reference, supporting both bipolar and unipolar configurations. |
| Operating Temp | −40°C to +85°C-qualified for industrial and medical environments without derating. |
Pinout & Package
AD7693BCPZRL7 is housed in a 10-lead MSOP package (3 mm × 4.9 mm, 0.5 mm pitch), RoHS-compliant, with exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - REF | Analog reference input | Accepts 0.5 V to VDD; requires local 10 µF decoupling; sets full-scale differential range (±VREF). |
| 2 - VDD | Analog power supply | 4.5 V to 5.5 V operation; powers internal SAR core and track-and-hold. |
| 3 - IN+ | Differential analog input (+) | True differential input; swings 0 V to VREF about VREF/2; common-mode range centered at VREF/2 ±0.1 V. |
| 4 - IN− | Differential analog input (−) | Complements IN+; enables rejection of noise and interference common to both inputs. |
| 5 - GND | Analog ground reference | Single-point return for REF, IN+, IN−, and VDD; must be isolated from digital ground per layout guidelines. |
| 6 - CNV | Convert control input | Rising edge initiates conversion; selects interface mode (CS vs. chain) based on SDI state at edge. |
| 7 - SDO | Serial data output | 16-bit twos-complement result; synchronized to SCK; tri-state controlled by CNV or SDI in CS mode. |
| 8 - SCK | Serial clock input | Drives data shift-out; timing varies with VIO (17–20 ns min period); not required for conversion timing. |
| 9 - SDI | Serial data input | Mode selection (chain/CS) and daisy-chain data input; enables busy indicator when held low in CS mode. |
| 10 - VIO | Digital I/O supply | 1.8 V to 5 V logic interface voltage; decouples digital signaling from analog domain; defines VIH/VIL thresholds. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Enables immediate readout after conversion completion-critical for time-critical multiplexed channel systems. |
| True differential input | Supports ±VREF range with 65 dB CMRR at 250 kHz-rejects common-mode noise in noisy industrial environments. |
| Low power scaling | 40 μW at 1 kSPS and 18 mW at 500 kSPS-linear power vs. throughput allows precise energy budgeting. |
| 1.8 V–5 V logic compatibility | VIO pin isolates digital interface voltage from analog supply-eliminates level-shifting in mixed-voltage systems. |
| Daisy-chain capability | SDI-to-SDO propagation enables cascading ≥2 ADCs on single 3-wire bus-reduces GPIO count and PCB routing complexity. |
Applications
| Battery-Powered Instrumentation | Seismic Data Acquisition |
|---|---|
|
Use Scenario: Portable multimeters and handheld oscilloscopes requiring long battery life and high DC accuracy. IC Role / Device Role / Timing Role: Primary analog-to-digital converter capturing differential sensor outputs with minimal latency and no missing codes. Use Value: 40 nJ/conversion and 1 nA standby current extend runtime; ±0.5 LSB INL ensures calibration-grade measurement fidelity. |
Use Scenario: Geophone signal conditioning in field-deployed seismic arrays with strict EMI immunity requirements. IC Role / Device Role / Timing Role: High-SNR front-end digitizer for low-frequency (<1 kHz) vibration signals with wide dynamic range. Use Value: 96.5 dB dynamic range and −120 dB THD at 1 kHz resolve microvolt-level earth motion signals amid ambient noise. |
| Medical Patient Monitoring | Digital Voltmeters (DVMs) |
|
Use Scenario: ECG/EEG modules where galvanic isolation and low power are mandatory for patient safety compliance. IC Role / Device Role / Timing Role: Isolated-channel ADC converting amplified biopotential signals with true differential rejection of 50/60 Hz mains interference. Use Value: 65 dB CMRR at 250 kHz and VREF-referenced input enable accurate baseline recovery without external op-amp filtering. |
Use Scenario: Benchtop DVMs needing 16-bit resolution, low drift, and repeatable 4½-digit accuracy over temperature. IC Role / Device Role / Timing Role: Core digitizer accepting buffered ±10 V inputs via precision reference and driver amplifier. Use Value: Gain error drift of ±0.3 ppm/°C and zero error drift of ±0.3 ppm/°C minimize recalibration frequency in metrology-grade instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7687BRMZ | Same 10-lead MSOP package and pinout; lower throughput (250 kSPS); higher INL (±1.5 LSB max); no VIO pin (single 5 V logic). | Best suited for cost-sensitive, lower-speed applications where 16-bit monotonicity is required but 500 kSPS is unnecessary. | Select AD7687BRMZ only if system sampling rate ≤250 kSPS and logic interface is fixed at 5 V. |
| AD7691BRMZ | 18-bit resolution; same MSOP-10 footprint; identical interface and timing; higher power (22 mW @ 500 kSPS); requires tighter reference stability. | Used where extended dynamic range (>100 dB) justifies increased cost and power, e.g., high-end spectrum analyzers. | Choose AD7691BRMZ when ENOB >16.2 bits is mandatory and reference design supports 18-bit noise floor. |
Compared with AD7693BCPZRL7, AD7687BRMZ trades speed and interface flexibility for lower cost and simpler supply, while AD7691BRMZ extends resolution at the expense of power and reference sensitivity-neither is pin-compatible without firmware or layout revision.
Availability
AD7693BCPZRL7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, seismic data acquisition, and medical patient monitoring requiring stable component supply, full production traceability, and long-term lifecycle support.
Supply support for AD7693BCPZRL7 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, headquartered in Norwood, MA.
The AD7693BCPZRL7 belongs to the PulSAR® family of precision SAR ADCs-engineered for high-speed, low-power, and high-accuracy data acquisition in demanding industrial and medical applications.
FAQ
What is the maximum recommended reference voltage for AD7693BCPZRL7?
The AD7693BCPZRL7 supports an external reference voltage (REF) from 0.5 V up to VDD, with VDD rated from 4.5 V to 5.5 V. Therefore, the absolute maximum REF is 5.5 V. Operation at VREF = VDD = 5 V is typical and fully characterized-delivering ±5 V differential input range and optimal SINAD performance. Exceeding VDD risks violating absolute maximum ratings and may cause latch-up or parametric shift.
Does AD7693BCPZRL7 require an external driver amplifier?
AD7693BCPZRL7 does not require an external driver amplifier for all applications, but one is strongly recommended when driving from high-impedance sources or when optimizing THD/SINAD. The internal input structure presents ~600 Ω series resistance and 30 pF capacitance during acquisition; for full 96 dB SINAD at 1 kHz, Analog Devices specifies ADA4941-1 or ADA4841-2 as compatible drivers in the datasheet. Direct connection is viable only with low-Z, low-noise sources.
Can AD7693BCPZRL7 operate with a 1.8 V digital interface?
Yes, AD7693BCPZRL7 supports 1.8 V digital logic via its dedicated VIO pin, which accepts 1.8 V to VDD (max 5.5 V). When VIO = 1.8 V, VIH is defined as 0.7 × VIO = 1.26 V and VIL as 0.3 × VIO = 0.54 V-fully compatible with standard 1.8 V CMOS interfaces. All timing parameters (e.g., tSCK min = 20 ns) remain valid, and SDO output VOH = VIO − 0.3 V ensures clean level translation to host controllers.
Is AD7693BCPZRL7 pin-compatible with AD7690 or AD7691?
Yes, AD7693BCPZRL7 is explicitly stated as pin-for-pin compatible with AD7690 and AD7691 in the datasheet. All three share identical 10-lead MSOP pinout, power sequencing, reference handling, and serial interface behavior. However, AD7690 (18-bit, 250 kSPS) and AD7691 (18-bit, 500 kSPS) differ in resolution, throughput, and power consumption-firmware and reference design adjustments may be needed despite mechanical and electrical pin compatibility.
What is the minimum acquisition time required before conversion starts?
The AD7693BCPZRL7 specifies a minimum acquisition time (tACQ) of 400 ns, measured from the CNV rising edge to the start of conversion. This value is guaranteed across temperature and supply conditions and reflects the time needed for the internal sampling capacitors to settle within ½ LSB. For optimal INL/DNL, layout must minimize trace inductance and ensure low-impedance source drive-exceeding 400 ns does not improve accuracy but may reduce effective throughput.
AD7693BCPZRL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 10-VFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7693BCPZRL7 FAQ
1.How can I place an order for AD7693BCPZRL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7693BCPZRL7 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 AD7693BCPZRL7 reliable?
The price and inventory of AD7693BCPZRL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7693BCPZRL7 is usually 5 days.
3.What payment methods are accepted for AD7693BCPZRL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7693BCPZRL7 transactions.
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4.How is shipping managed for AD7693BCPZRL7?
AD7693BCPZRL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7693BCPZRL7 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 AD7693BCPZRL7?
For technical support, including AD7693BCPZRL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7693BCPZRL7 requirements.
6.How does Aetrix verify that AD7693BCPZRL7 is sourced from the original manufacturer or authorized distributors?
All AD7693BCPZRL7 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 AD7693BCPZRL7 meets industry standards.
7.What is the process for return or replacement of AD7693BCPZRL7?
All AD7693BCPZRL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7693BCPZRL7, 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 AD7693BCPZRL7 part is unused and in its original packaging.
Return procedure for AD7693BCPZRL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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