Analog Devices Inc. LTC2220IUP-1#TRPBF

Overview

LTC2220IUP-1#TRPBF from Analog Devices (formerly Linear Technology) is a 12-bit, 185Msps pipelined analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 67.5dB SNR at 140MHz input and 80dB SFDR up to 170MHz, with ultralow 0.15psRMS aperture jitter. Its flexible LVDS/CMOS outputs, ±0.5V or ±1V selectable input range, and 775MHz full-power bandwidth support demanding IF sampling in wireless base stations and cable head-end systems.

For engineers reviewing the LTC2220IUP-1#TRPBF datasheet, LTC2220IUP-1#TRPBF pinout, LTC2220IUP-1#TRPBF application, or LTC2220IUP-1#TRPBF equivalent, key selection criteria include its guaranteed no-missing-codes performance over –40°C to +85°C, dual-supply operation (3.3V VDD / 0.5–3.6V OVDD), clock duty cycle stabilizer, and 64-pin 9mm × 9mm QFN package with exposed thermal pad.

Technical Context

The LTC2220IUP-1#TRPBF implements a five-stage CMOS pipelined ADC architecture with integrated sample-and-hold, correction logic, and flexible output drivers. Its differential analog input path supports common-mode rejection of 80dB and full-scale bandwidth of 775MHz, enabling undersampling of IF signals without external filtering.

It features dual-reference architecture with programmable SENSE pin for ±0.5V or ±1V input ranges, MODE pin for 2's complement/offset binary format selection and clock duty cycle stabilization, and LVDS pin for output mode configuration (LVDS, full-rate CMOS, or demultiplexed CMOS with interleaved/simultaneous update).

Key Specifications

Pinout & Package

Package: 64-lead 9mm × 9mm plastic QFN with exposed thermal pad (Pin 65 = GND, must be soldered to PCB).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9230-170EBZ and ADS5463IPFP, the LTC2220IUP-1#TRPBF uniquely combines 185Msps speed, industrial temperature rating, on-chip clock duty cycle stabilization, and pin-selectable input range-making it optimal for cost-constrained, thermally constrained communications infrastructure where flexibility and guaranteed performance over temperature are critical.

Availability

LTC2220IUP-1#TRPBF is available at Aetrix Electronics and suitable for wireless infrastructure, cable access equipment, and automated test systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2220IUP-1#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving communications, industrial, automotive, and healthcare markets.

The LTC2220IUP-1#TRPBF belongs to ADI's high-speed data converter product line, engineered specifically for broadband communications infrastructure where dynamic range, jitter performance, and configurability are essential for next-generation RF systems.

FAQ

What is the operating temperature range for the LTC2220IUP-1#TRPBF?

The LTC2220IUP-1#TRPBF is rated for industrial operation from –40°C to +85°C, as confirmed by its "I" grade designation and absolute maximum ratings table. This range is validated across all electrical specifications including INL, DNL, SNR, and SFDR, making LTC2220IUP-1#TRPBF suitable for outdoor base station cabinets and industrial test environments without derating.

Does the LTC2220IUP-1#TRPBF support both differential and single-ended analog inputs?

Yes, the LTC2220IUP-1#TRPBF supports both configurations. Differential input (AIN+/AIN–) is recommended for optimal AC performance, delivering 80dB SFDR and 80dB CMRR. Single-ended input is supported with degraded harmonic distortion but retains full DC accuracy; the datasheet specifies separate INL/DNL values for each mode. LTC2220IUP-1#TRPBF does not require external baluns or termination networks for differential drive.

How does the SENSE pin configure the input range on the LTC2220IUP-1#TRPBF?

The SENSE pin on the LTC2220IUP-1#TRPBF directly programs the full-scale input range: connecting SENSE to VCM selects ±0.5V, to VDD selects ±1V, and to an external voltage between 0.5V and 1V selects ±VSENSE. This eliminates external resistor dividers or DAC-controlled references. The LTC2220IUP-1#TRPBF guarantees monotonicity and no missing codes across all configured ranges within its specified temperature range.

What are the power supply requirements for the LTC2220IUP-1#TRPBF?

The LTC2220IUP-1#TRPBF requires two supplies: a 3.3V analog supply (VDD, Pins 13/14/15/62/63) and a configurable digital output supply (OVDD, Pins 26/34/42/49) ranging from 0.5V to 3.6V for CMOS mode or 3.0–3.6V for LVDS mode. Total power dissipation is 910mW in CMOS mode and 1221mW in LVDS mode at 185Msps, with dedicated OGND and GND pins for noise isolation. LTC2220IUP-1#TRPBF specifies strict decoupling requirements per pin group.

Can the LTC2220IUP-1#TRPBF operate with a non-50% duty cycle clock?

Yes, the LTC2220IUP-1#TRPBF includes an optional clock duty cycle stabilizer enabled via the MODE pin. When activated, it corrects duty cycle deviations across the full 1–185MHz encode frequency range, maintaining full AC performance without requiring external clock conditioning circuits. The stabilizer is disabled by default and consumes negligible additional power when inactive. LTC2220IUP-1#TRPBF specifies timing parameters for both stabilized and unstabilized operation.