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Analog Devices Inc. AD9200JST
- Part No.:
- AD9200JST
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
AD9200JST.pdf
- Description:
- IC ADC 10BIT CMOS 20MSPS 48-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,013
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Product details
Overview
AD9200JST from Analog Devices is a monolithic 10-bit, 20 MSPS CMOS analog-to-digital converter with on-chip sample-and-hold amplifier and programmable voltage reference. It operates from 2.7 V to 5.5 V, delivers 54.5 dB SINAD at 3.58 MHz, exhibits ±0.5 LSB differential nonlinearity, and supports IF undersampling up to 135 MHz - used in high-speed communications receivers and digital video digitization.
For engineers reviewing the AD9200JST datasheet, AD9200JST pinout, AD9200JST application, or AD9200JST equivalent, this page provides verified technical context, real-world design meanings for key specs, validated LQFP-48 pin functions, confirmed alternatives for migration or sourcing continuity, and supply support for volume production in industrial imaging and wireless infrastructure.
Technical Context
The AD9200JST implements a multistage pipelined architecture enabling 20 MSPS conversion with guaranteed no missing codes across –40°C to +85°C (industrial grade variants) or 0°C to +70°C (J-grade). Its switched-capacitor input supports both single-ended and differential configurations, with aperture jitter of 2 ps and full-power bandwidth of 300 MHz.
Internal reference flexibility includes 1 V or 2 V modes via REFSENSE strapping, external reference support via REFTS/REFBS, and clamp functionality (enabled in AD9200KST/ARS variants) for DC restoration of AC-coupled video signals - all configurable without external components in standard top/bottom or center-span modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - defines quantization step size of ~1 mV at 1 V span; sufficient for medium-fidelity signal capture in baseband and IF sampling. |
| Sampling Rate | 20 MSPS - enables Nyquist-limited acquisition up to 10 MHz; supports undersampling of IF signals up to 135 MHz. |
| Differential Nonlinearity | ±0.5 LSB (typ) - ensures monotonic transfer function critical for closed-loop control and measurement accuracy. |
| SINAD @ 3.58 MHz | 54.5 dB (typ) - corresponds to ~9.1 effective bits; meets requirements for broadcast-quality video digitization. |
| Power Dissipation | 80 mW @ 3 V - enables portable and thermally constrained designs; drops to <5 mW in STBY mode. |
| Input Bandwidth | 300 MHz (–3 dB) - supports wideband RF front-end interfacing without external amplification. |
| Aperture Uncertainty | 2 ps (typ) - limits sampling-time jitter-induced SNR degradation at high input frequencies. |
Pinout & Package
The AD9200JST is housed in a 48-lead LQFP (ST-48) package with exposed thermal pad, rated for 0°C to +70°C operation. Pin layout follows JEDEC MO-220 standard with 0.5 mm pitch; pin 1 marked by corner notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN | Analog Input | Differential or single-ended signal input node; high-impedance switched-capacitor structure requiring careful PCB layout and decoupling. |
| CLK | Master Clock Input | Single-ended CMOS clock driving internal pipeline; requires clean 20 MHz square wave with ≤22.5 ns pulse width high/low. |
| D0–D9 | Digital Output Data | MSB-first straight binary output; three-state controlled by THREE-STATE pin; compatible with 3 V or 5 V logic families. |
| OTR | Out-of-Range Indicator | Active-high flag signaling input overflow beyond REFTS/REFBS range; used with D9 to distinguish high/low saturation. |
| REFTS / REFBS | Reference Sense Inputs | Define analog input span endpoints; can be driven externally or tied to internal VREF for 1 V/2 V ranges. |
| REFSENSE | Reference Mode Select | Strap to AVDD (external ref), GND (2 V mode), or VREF (1 V mode); determines internal reference amplifier configuration. |
| CLAMP / CLAMPIN | DC Restoration Control | Available only on AD9200KST/ARS; CLAMP enables internal switch, CLAMPIN sets clamped DC level (0.5–2.7 V). |
| MODE | Input Configuration Select | Set to AVDD (top/bottom), AVDD/2 (center span), or AVSS/GND (AD876 compatibility); configures internal biasing network. |
| AVDD / DRVDD | Analog & Digital Supplies | Separate 2.7–5.5 V rails reduce noise coupling; AVDD powers analog core, DRVDD drives digital outputs. |
| AVSS / DRVSS | Analog & Digital Grounds | Independent ground planes required; star grounding recommended to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible upgrade path | Direct replacement for AD876 in existing sockets - enables low-voltage migration without PCB redesign. |
| Programmable reference architecture | 1 V or 2 V internal reference selectable via REFSENSE; external reference supported via REFTS/REFBS pins. |
| Low-power standby mode | Reduces power to <5 mW via STBY pin assertion - ideal for burst-mode or battery-powered systems. |
| Three-state digital outputs | Enables direct connection to shared data buses without external buffers; controlled by dedicated THREE-STATE pin. |
| On-chip sample-and-hold | 300 MHz bandwidth SHA eliminates need for external track-and-hold; supports multiplexed and single-channel inputs. |
Applications
| Communications Receiver Front-End | Digital Video Digitization |
|---|---|
Use Scenario: Sampling 70 MHz IF signal in GSM/CDMA base station receiver with undersampling architecture. IC Role / Device Role / Timing Role: ADC core performing bandpass sampling; CLK synchronized to system timing controller; OTR monitors signal clipping. Use Value: 135 MHz IF undersampling capability avoids costly downconversion stages; 54 dB SINAD preserves EVM in QPSK modulation. |
Use Scenario: Digitizing composite NTSC video signal after sync stripping and clamping. IC Role / Device Role / Timing Role: High-speed digitizer capturing 13.5 MHz pixel clock domain; CLAMP/CLAMPIN pins restore DC level between lines. Use Value: Built-in clamp circuit (in AD9200KST variant) eliminates external op-amp and timing generator; ±0.05% differential gain meets broadcast spec. |
| Portable Ultrasound Beamformer | Industrial Imaging Sensor Interface |
Use Scenario: Acquiring 10–15 MHz echo return signals in handheld ultrasound probe with tight thermal budget. IC Role / Device Role / Timing Role: Low-power ADC sampling transducer outputs; STBY pin enables per-frame power gating; AVDD/DRVDD separation minimizes noise coupling. Use Value: 80 mW total power at 20 MSPS allows integration into battery-operated devices; 300 MHz input BW captures full echo bandwidth without aliasing. |
Use Scenario: Capturing high-resolution line-scan sensor output in automated optical inspection (AOI) system. IC Role / Device Role / Timing Role: Precision digitizer interfacing to CCD/CMOS sensor; DNL ≤ ±0.5 LSB ensures consistent grayscale linearity across 1024 pixels. Use Value: Guaranteed no missing codes over temperature prevents false defect detection; 2.7–5.5 V supply range simplifies power architecture with mixed-voltage sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-to-digital conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9200JRS | Same core ADC, but in 28-lead SSOP package; lacks CLAMP/CLAMPIN pins; identical electrical specs. | Preferred where board space is constrained and clamp function not required; unsuitable for video DC restoration. | Select AD9200JRS for compact layouts without clamping needs; verify thermal performance in SSOP vs LQFP. |
| AD9201AST | 10-bit, 25 MSPS successor with improved SFDR (–72 dBc vs –61 dBc) and lower power (65 mW); pinout differs - not drop-in. | Better suited for higher IF sampling (e.g., LTE uplink) where dynamic range >65 dB is critical. | Choose AD9201AST when upgrading for higher speed or SFDR; requires PCB layout change due to different pin mapping. |
Compared with AD9200JST, AD9200JRS offers identical performance in a smaller footprint but omits clamping, while AD9201AST delivers higher speed and SFDR at lower power but demands board redesign - making AD9200JST optimal for cost-sensitive, clamp-requiring LQFP-based video and comms designs.
Availability
AD9200JST is available at Aetrix Electronics and suitable for high-speed communications receivers, digital video digitization, portable medical imaging, and industrial sensor interface applications requiring stable component supply and long-term manufacturing continuity.
Supply support for AD9200JST 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 AD9200 product line was designed for high-speed, low-power data acquisition in communications, imaging, and instrumentation - balancing resolution, speed, and power efficiency in monolithic CMOS ADCs.
FAQ
What is the operating temperature range for AD9200JST?
The AD9200JST is specified for commercial temperature operation from 0°C to +70°C. This range is validated per Analog Devices' ordering guide and applies to all electrical specifications unless otherwise noted in the datasheet. The AD9200JST's performance metrics - including DNL, SINAD, and power consumption - are guaranteed within this interval. For extended temperature applications, consider the AD9200ARS variant rated from –40°C to +85°C.
Does AD9200JST support differential input mode?
Yes, AD9200JST supports true differential input operation by shorting REFTS and REFBS together and applying the second differential signal to that node, with MODE tied to AVDD/2. This configuration achieves optimal distortion performance (THD –66 dB at 3.58 MHz) and is explicitly documented in the AD9200 datasheet Figure 29 and Table I. Differential mode requires proper termination and layout to maintain common-mode rejection.
Is the clamp function available on AD9200JST?
No, the clamp function is not available on AD9200JST. Clamp circuitry is implemented only in the AD9200ARS and AD9200KST variants, as confirmed in the Product Description (page 2) and Clamp Operation section (page 13). AD9200JST shares the same LQFP-48 package and pinout but excludes CLAMP and CLAMPIN functionality - use AD9200KST if DC restoration is required.
What reference voltage options does AD9200JST support?
AD9200JST supports four reference configurations: (1) 1 V internal (REFSENSE = VREF), (2) 2 V internal (REFSENSE = GND), (3) external reference applied to REFTS/REFBS, and (4) external divider between VREF/REFSENSE/AGND for voltages between 1 V and 2 V. All modes are validated in the AD9200 datasheet Figures 18–23 and Table I, with decoupling requirements specified for REFTF/REFBF.
Can AD9200JST operate from a 5 V supply?
Yes, AD9200JST supports AVDD and DRVDD supplies from 2.7 V to 5.5 V per Absolute Maximum Ratings and DC Accuracy specifications. At 5 V, power dissipation increases to ~100 mW (vs 80 mW at 3 V), and digital output VOH/VOL shift accordingly - e.g., VOH = +4.5 V (IOH = 50 µA). System-level noise margin and thermal design must account for higher current draw at elevated voltage.
AD9200JST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-LQFP
- Packaging:
- Bag
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 20M
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- Parallel
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-LQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9200JST FAQ
1.How can I place an order for AD9200JST through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9200JST 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 AD9200JST reliable?
The price and inventory of AD9200JST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9200JST is usually 5 days.
3.What payment methods are accepted for AD9200JST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9200JST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9200JST?
AD9200JST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9200JST 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 AD9200JST?
For technical support, including AD9200JST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9200JST requirements.
6.How does Aetrix verify that AD9200JST is sourced from the original manufacturer or authorized distributors?
All AD9200JST 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 AD9200JST meets industry standards.
7.What is the process for return or replacement of AD9200JST?
All AD9200JST units undergo pre-shipment inspection (PSI). If there is an issue with AD9200JST, 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 AD9200JST part is unused and in its original packaging.
Return procedure for AD9200JST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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