Analog Devices Inc. LTC2207IUK-14#TRPBF

Overview

LTC2207IUK-14#TRPBF from Analog Devices (formerly Linear Technology) is a 14-bit, 105Msps pipeline analog-to-digital converter optimized for high-frequency signal digitization up to 700MHz full-power bandwidth. It features 77.3dBFS SNR, 98dBc SFDR at 5MHz, 80fsRMS aperture jitter, and a programmable PGA front end supporting 1.5VP-P or 2.25VP-P input ranges. It is used in cellular base station receivers requiring undersampling of RF signals with low noise floor and high spurious-free dynamic range.

For engineers reviewing the LTC2207IUK-14#TRPBF datasheet, LTC2207IUK-14#TRPBF pinout, LTC2207IUK-14#TRPBF application, or LTC2207IUK-14#TRPBF equivalent, key selection criteria include sampling rate stability at 105Msps, SFDR performance above 82dB at 250MHz, INL/DNL accuracy over –40°C to 85°C, CMOS output swing configurability (0.5V–3.6V), and compatibility with differential LVDS/PECL clock inputs.

Technical Context

The LTC2207IUK-14#TRPBF employs a 14-bit pipelined ADC architecture with integrated sample-and-hold, internal reference generator, and correction logic. Its 700MHz full-power bandwidth enables direct RF sampling, while the optional clock duty cycle stabilizer maintains performance across wide input duty cycles without external circuitry.

It supports dual-mode operation: differential analog input (AIN+/AIN–) with 1.25V common-mode bias (VCM), and flexible encode interface (ENC+/ENC–) accepting sine wave, PECL, LVDS, TTL, or CMOS clocks. The PGA front end allows gain selection (0 or 1) to optimize dynamic range for varying input signal amplitudes.

Key Specifications

Pinout & Package

48-pin 7mm × 7mm plastic QFN package (UK) with exposed GND pad (Pin 49). Requires soldering of exposed pad to PCB for thermal and electrical integrity. θJA = 29°C/W, TJMAX = 125°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9246BCPZ-105 and LTC2206IUK-14#TRPBF, the LTC2207IUK-14#TRPBF uniquely combines 105Msps speed, integrated PGA, internal dither, and industry-leading 98dBc SFDR at 5MHz-making it optimal for RF receiver front ends demanding both wide bandwidth and spectral purity without external signal conditioning.

Availability

LTC2207IUK-14#TRPBF is available at Aetrix Electronics and suitable for cellular infrastructure, spectrum analysis instrumentation, ATE systems, and imaging digitizers requiring stable component supply across extended temperature and long production lifecycles.

Supply support for LTC2207IUK-14#TRPBF 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 digital signal processing semiconductors.

The LTC2207 series belongs to Linear's ultra-low-jitter, high-SFDR pipeline ADC product line, designed specifically for communications infrastructure, instrumentation, and defense applications requiring direct RF sampling and spectral fidelity.

FAQ

What is the operating temperature range for the LTC2207IUK-14#TRPBF?

The LTC2207IUK-14#TRPBF is rated for industrial operation from –40°C to +85°C (I-grade), as confirmed in the Absolute Maximum Ratings table and Order Information section. This range applies to all DC and AC specifications unless otherwise noted, making it suitable for base station and outdoor equipment deployments.

Does the LTC2207IUK-14#TRPBF support single-ended clock inputs?

Yes, the LTC2207IUK-14#TRPBF supports single-ended clock inputs on the ENC+ pin, with ENC– internally biased and bypassed to ground using a 0.1µF capacitor. The datasheet explicitly lists TTL and CMOS as compatible single-ended input types, and Figure 2 confirms the internal 6.2kΩ bias network for ENC–.

How does the PGA setting affect input range and SNR in the LTC2207IUK-14#TRPBF?

The PGA setting (controlled by the PGA pin) selects between 1.5VP-P (PGA = 1) and 2.25VP-P (PGA = 0) differential input ranges. At 5MHz, SNR is 75.1dBFS with PGA = 1 and 77.3dBFS with PGA = 0. The trade-off is dynamic range versus headroom: PGA = 1 improves sensitivity for small signals, while PGA = 0 maximizes SNR for larger inputs.

Can the LTC2207IUK-14#TRPBF operate with a 2.5V digital output supply (OVDD)?

Yes, the LTC2207IUK-14#TRPBF supports OVDD from 0.5V to 3.6V. At OVDD = 2.5V, VOH is guaranteed ≥2.49V and VOL ≤0.1V under specified load conditions, enabling direct interface with 2.5V logic families without level shifters-confirmed in the Digital Inputs and Outputs table on page 5.

What is the purpose of the SENSE pin on the LTC2207IUK-14#TRPBF?

SENSE (Pin 1) selects the reference source: tying SENSE to VDD activates the internal 2.5V bandgap reference, while applying an external 1.25V or 2.5V reference sets full-scale range to 2.25VP-P regardless of reference value. This flexibility allows calibration traceability or integration with system-level reference architectures.