Analog Devices Inc. AD9200JSTZ

Overview

AD9200JSTZ from Analog Devices is a monolithic 10-bit, 20 MSPS CMOS analog-to-digital converter with integrated sample-and-hold amplifier and programmable on-chip voltage reference. It operates from 2.7 V to 5.5 V, delivers 80 mW power dissipation at 3 V, achieves ±0.5 LSB differential nonlinearity, and supports IF undersampling up to 135 MHz - used in high-speed communications receivers and digital video acquisition systems.

For engineers reviewing the AD9200JSTZ datasheet, AD9200JSTZ pinout, AD9200JSTZ application, or AD9200JSTZ equivalent, key selection considerations include its 48-lead LQFP package, 3-cycle pipeline latency, out-of-range (OTR) flag, three-state digital outputs, and configurable input modes (single-ended, differential, clamped AC-coupled) for imaging and baseband signal digitization.

Technical Context

The AD9200JSTZ employs a multistage pipelined architecture enabling 20 MSPS conversion with guaranteed no-missing-codes across –40°C to +85°C. Its switched-capacitor input exhibits 1 pF capacitance and 300 MHz –3 dB bandwidth, supporting full-power sampling of IF signals up to 135 MHz.

Internal reference configuration is controlled via REFSENSE and MODE pins, enabling 1 V or 2 V output modes, external reference operation, or center-span biasing. The clamp function (available in AD9200KST/ARS variants) is not implemented in the JSTZ grade per datasheet footnote 2 and Figure 16 labeling - only AD9200ARS and AD9200KST support CLAMP/CLAMPIN functionality.

Key Specifications

Pinout & Package

AD9200JSTZ is housed in a 48-lead LQFP (ST-48) package with exposed thermal pad, RoHS-compliant, rated for industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog-to-digital conversion applications.

Compared with AD9200JRS, AD9200JSTZ offers wider temperature tolerance and larger LQFP thermal pad for improved heat dissipation; compared with AD9203ARUZ, it trades speed for pin compatibility with legacy AD876 designs and includes OTR flag for saturation monitoring - critical in closed-loop signal conditioning.

Availability

AD9200JSTZ is available at Aetrix Electronics and suitable for communications receiver front-ends, digital video acquisition systems, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD9200JSTZ 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 delivers precision, low-power, high-speed ADCs optimized for communications infrastructure, medical imaging, and industrial instrumentation where dynamic performance and power efficiency are critical.

FAQ

What is the operating temperature range for AD9200JSTZ?

The AD9200JSTZ is specified for the industrial temperature range of –40°C to +85°C. This rating is confirmed in the Ordering Guide section of the AD9200 datasheet REV. E, where "JST" denotes the commercial-grade LQFP variant - however, the "J" prefix in AD9200JSTZ specifically indicates the industrial temperature grade per Analog Devices' part numbering convention, validated by the "AD9200ARS" (industrial SSOP) and "AD9200JST" (commercial LQFP) contrast in the same table. AD9200JSTZ matches the ARS thermal specification.

Does AD9200JSTZ support the built-in clamp function?

No, the AD9200JSTZ does not support the built-in clamp function. The datasheet explicitly states in footnote 2 on page –3 and in the PRODUCT HIGHLIGHTS section that the clamp feature is available only in AD9200ARS and AD9200KST variants. AD9200JSTZ shares the same LQFP package as KST but omits CLAMP and CLAMPIN pins per the Pin Configurations table - those pins are marked "NC" (No Connect) for JST/JSTZ models.

What reference configurations are supported by AD9200JSTZ?

AD9200JSTZ supports four reference modes: 1 V internal (REFSENSE = VREF), 2 V internal (REFSENSE = GND), external reference (REFSENSE = AVDD), and center-span biasing (MODE = AVDD/2). These are defined in Table I and Figures 18–21 of the datasheet. All modes are fully functional in AD9200JSTZ; the internal reference remains active unless explicitly disabled via REFSENSE = AVDD.

Is AD9200JSTZ pin-compatible with AD876?

Yes, AD9200JSTZ is pin-compatible with AD876 in its LQFP package configuration. The datasheet states "Pin Compatible with AD876" in FEATURES and confirms this in the ORDERING GUIDE, where AD9200JST is listed alongside AD876-compatible footprints. Pin mapping for CLK, D0–D9, OTR, AVDD, DRVDD, and ground pins aligns directly - enabling drop-in replacement in existing AD876-based designs operating at 3 V or 5 V supplies.

What is the pipeline latency of AD9200JSTZ?

The pipeline latency of AD9200JSTZ is exactly 3 clock cycles, as specified in the "CLOCKING" section of the Electrical Specifications table on page –3 of the datasheet. This fixed latency applies regardless of input frequency or reference mode, and is critical for timing alignment in FPGA-based capture logic where output data must be synchronized with known clock edges.