Analog Devices Inc. AD9430BSV-170

Overview

AD9430BSV-170 from Analog Devices is a 12-bit, 170 MSPS monolithic analog-to-digital converter optimized for high dynamic performance in wideband communications systems. It features 700 MHz full-power analog bandwidth, on-chip track-and-hold and reference, 3.3 V single-supply operation, and dual-output modes (LVDS or demultiplexed CMOS). It is used in cable reverse path receivers and radar subsystems requiring high-fidelity digitization of IF signals up to 240 MHz.

For engineers reviewing the AD9430BSV-170 datasheet, AD9430BSV-170 pinout, AD9430BSV-170 application, or AD9430BSV-170 equivalent, key selection considerations include its 170 MSPS sampling rate, LVDS/CMOS output flexibility, 65 dB SNR at 70 MHz input, ±0.3 LSB typical DNL, and 100-lead e-PAD TQFP package with exposed thermal slug.

Technical Context

The AD9430BSV-170 implements a 12-bit pipeline ADC core with integrated scalable reference and clock duty cycle stabilizer. Its analog front end supports differential inputs up to 1.536 V_pp, with common-mode voltage range of 2.65 V to 2.9 V and input resistance of 2.2–3.8 kΩ.

Digital interface options include interleaved or parallel 12-bit CMOS outputs at ≤105 MSPS per port, or full-rate LVDS outputs at 170 MSPS. Output data format (twos complement or offset binary) and mode selection (CMOS/LVDS) are controlled via dedicated logic pins S1 and S2, while S5 configures full-scale input range.

Key Specifications

Pinout & Package

AD9430BSV-170 is housed in a 100-lead, surface-mount e-PAD TQFP package (14 mm × 14 mm) with exposed conductive thermal slug electrically connected to chip ground. The slug must be soldered to a solid ground plane to maintain junction temperature within limits over –40°C to +85°C industrial operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed ADC applications.

Compared with AD9430BSV-210, the AD9430BSV-170 reduces power by 0.14 W at full rate while maintaining identical AC performance and pin compatibility; versus AD9628BCPZ-105, it provides dual-output flexibility and data synchronization-critical for multi-channel coherent sampling-but in a larger package.

Availability

AD9430BSV-170 is available at Aetrix Electronics and suitable for wireless infrastructure, cable access equipment, and defense electronics requiring stable component supply across extended product lifecycles.

Supply support for AD9430BSV-170 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 AD9430 family targets wideband communications and instrumentation applications, delivering high-speed ADC performance with integrated analog front-end functions to simplify system-level design and reduce external component count.

FAQ

What is the maximum analog input frequency supported by the AD9430BSV-170?

The AD9430BSV-170 has a 700 MHz full-power analog bandwidth, meaning it can accurately digitize signals with frequency content up to 700 MHz without significant amplitude roll-off. However, its 170 MSPS sampling rate limits usable Nyquist bandwidth to 85 MHz for baseband sampling; for IF sampling, input frequencies up to 240 MHz are supported with preserved SFDR and SNR performance per datasheet Table 2.

Does the AD9430BSV-170 require external reference components?

No, the AD9430BSV-170 includes an on-chip scalable reference and track-and-hold circuit. When SENSE is left floating, the internal 1.235 V reference is active, eliminating the need for external reference ICs or precision resistors. External reference mode is optional and requires driving VREF with a 1.23 V source while tying SENSE to DRVDD.

Can the AD9430BSV-170 operate in both CMOS and LVDS output modes simultaneously?

No, the AD9430BSV-170 supports either CMOS or LVDS output mode-not both concurrently. Mode selection is controlled by the logic level on pin S2: AVDD selects LVDS mode, while GND selects dual-port CMOS mode. Pin S1 further configures data format (twos complement or offset binary) independently of the output standard.

What is the purpose of the exposed thermal slug on the AD9430BSV-170 package?

The exposed thermal slug on the AD9430BSV-170's 100-lead e-PAD TQFP package is electrically connected to chip ground and serves as the primary heat dissipation path. When soldered to a large PCB ground plane, it reduces thermal resistance (θ_JA) from 32°C/W to 25°C/W, enabling reliable operation at 170 MSPS across the full –40°C to +85°C industrial temperature range without additional heatsinking.

How does the data sync (DS+, DS–) function in CMOS mode for the AD9430BSV-170?

In CMOS mode, the DS+ and DS– inputs provide a synchronous alignment signal for the dual-port output buses (DA[11:0] and DB[11:0]). When asserted, they reset internal timing counters to ensure deterministic phase relationship between the two 12-bit data streams-essential for time-interleaved sampling or channel-bonded architectures where precise inter-port skew control is required. If unused, DS+ should be tied low and DS– tied high.