Analog Devices Inc. LTM9008CY-14#PBF

Overview

LTM9008CY-14#PBF from Analog Devices (formerly Linear Technology) is a 14-bit, 65 Msps octal simultaneous-sampling analog-to-digital converter (ADC) optimized for high-frequency, wide-dynamic-range signal digitization in communications infrastructure. It delivers 73 dB SNR, 90 dB SFDR, and 800 MHz full-power bandwidth with 88 mW per channel power consumption at 65 Msps, enabling compact multichannel RF receiver front-ends in cellular base stations.

For engineers reviewing the LTM9008CY-14#PBF datasheet, LTM9008CY-14#PBF pinout, LTM9008CY-14#PBF application, or LTM9008CY-14#PBF equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options for high-channel-count, low-jitter ADC selection in SDR and medical imaging systems.

Technical Context

The LTM9008CY-14#PBF integrates eight independent 14-bit ADC cores with a shared sample-and-hold (S/H) stage per channel and an on-chip PLL for clock synchronization. Its architecture supports differential analog inputs up to 2 V_P-P, internal/external reference selection, and programmable LVDS serialization modes (1-lane or 2-lane) to reduce interface complexity.

It features a duty-cycle stabilizer for ENC+/ENC– inputs, enabling high AC performance across wide clock duty cycles, and includes SPI-configurable sleep/nap modes, shutdown control, and integrated bypass capacitance - eliminating external decoupling components for analog and digital supplies.

Key Specifications

Pinout & Package

140-pin (11.25 mm × 9.00 mm × 2.72 mm) BGA package with flow-through pinout optimized for analog signal integrity and minimal board area. Internally bypassed VDD and OVDD pins eliminate need for external bulk capacitors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9257BSTZ-65 and LTC2268IUP-14#PBF, the LTM9008CY-14#PBF uniquely integrates VCM bias generation, internal bypassing, and flow-through routing - reducing component count by ≥12 passive parts and minimizing layout-induced channel mismatch in space-constrained RF modules.

Availability

LTM9008CY-14#PBF is available at Aetrix Electronics and suitable for cellular base station development, software-defined radio prototyping, and portable medical imaging systems requiring stable component supply across extended production lifecycles.

Supply support for LTM9008CY-14#PBF 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and DSP technologies, serving aerospace, communications, industrial, and healthcare markets.

The LTM9008CY-14#PBF belongs to Linear's µModule® data converter family - designed to simplify high-speed ADC integration by embedding power, reference, and layout-critical analog functions into a single BGA package.

FAQ

What is the operating temperature range of the LTM9008CY-14#PBF?

The LTM9008CY-14#PBF is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is specified in the Absolute Maximum Ratings table and applies to all DC and AC performance parameters unless otherwise noted. The 'C' suffix in the part number explicitly denotes the 0°C to 70°C grade, distinguishing it from the industrial-grade LTM9008IY-14#PBF (–40°C to +85°C). Thermal derating is not required within this range.

Does the LTM9008CY-14#PBF require external decoupling capacitors?

No, the LTM9008CY-14#PBF does not require external decoupling capacitors on VDD or OVDD. The device integrates internal 0.1 µF ceramic bypass capacitors for both analog and output supplies, as confirmed in the Pin Functions section and Typical Application diagram. This eliminates eight external capacitors, reducing PCB area and assembly cost while maintaining specified AC performance.

How many LVDS data lanes does the LTM9008CY-14#PBF support, and how is mode selected?

The LTM9008CY-14#PBF supports both 1-lane and 2-lane LVDS serialization modes. Mode selection is controlled by the CS pin in parallel programming mode (PAR/SER = VDD): logic high configures 2-lane (2 bits per channel per cycle), logic low configures 1-lane (1 bit per channel per cycle). This is documented in the Digital Inputs and Outputs section and Timing Characteristics tables.

What is the analog input common-mode voltage requirement for the LTM9008CY-14#PBF?

The LTM9008CY-14#PBF requires analog input common-mode voltage (V_CM) to be within V_CM – 100 mV to V_CM + 100 mV, where V_CM is nominally VDD/2 (0.9 V at 1.8 V supply). Four dedicated VCM outputs (VCM14, VCM23, VCM58, VCM67) provide this bias, each intended for two differential input pairs - ensuring matched common-mode levels across channels.

Can the LTM9008CY-14#PBF accept single-ended encode clock inputs?

Yes, the LTM9008CY-14#PBF supports single-ended encode clock inputs. When ENC– is tied to GND, ENC+ accepts TTL, CMOS, or LVDS logic levels (0.54 V to 3.6 V) with defined VIH/VIL thresholds. The internal duty-cycle stabilizer remains active, preserving timing performance - a capability explicitly detailed in the Digital Inputs and Outputs section under "Single-Ended Encode Mode".