Texas Instruments ADS58H43IZCR

Overview

ADS58H43IZCR from Texas Instruments is a quad-channel, 14-bit, 250-MSPS analog-to-digital converter optimized for wideband receiver and feedback paths in multi-carrier cellular infrastructure. It delivers 70.5 dBFS SNR in 90-MHz bandwidth with SNRBoost3G+, 85 dBc SFDR at 170 MHz IF, and operates in three configurable modes (11-bit, 11-bit SNRBoost3G+, or 14-bit burst) - enabling flexible trade-offs between resolution, bandwidth, and power in active antenna arrays and base station transceivers.

For engineers reviewing the ADS58H43IZCR datasheet, ADS58H43IZCR pinout, ADS58H43IZCR application, or ADS58H43IZCR equivalent, this page provides verified technical context, validated pin functions, real-world spectral performance data at 170 MHz IF, DDR LVDS interface timing, and confirmed alternative options for multi-mode wireless infrastructure signal chain design.

Technical Context

The ADS58H43IZCR integrates four 14-bit ADC cores split into two independent processing blocks (A/B and C/D), each supporting three operating modes via register configuration: full 14-bit burst mode (250 MSPS), standard 11-bit mode (250 MSPS), or 11-bit SNRBoost3G+ mode delivering enhanced SNR up to 90 MHz bandwidth. Its digital processing includes programmable digital gain, offset correction, and SNRBoost3G+ filtering - all implemented on-chip without external FPGA resources.

It employs a DDR LVDS output interface with dual clock pairs (CLKOUTABP/M for channels A/B; CLKOUTCDP/M for C/D), supports 1.5-VPP differential clock input, and features channel-level power-down control (PDN), hardware reset (RESET), and burst-triggering logic (TRIG_EN/ TRIG_RDY). The device uses separate analog (AVDD33, AVDD, AVSS) and digital (DRVDD, DRVSS) supply domains to isolate noise-sensitive sampling circuitry.

Key Specifications

Pinout & Package

ADS58H43IZCR is housed in a 144-pin BGA package (ZCR, 10 mm × 10 mm, 0.8-mm pitch) with exposed thermal pad. Pin functions are validated per TI SBAS598 datasheet Figure 10 and Pin Functions table (pp. 11–12).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS58H43IZCR, ADS58H40IZCR offers identical packaging and pinout but removes SNRBoost3G+ flexibility, while AD9694BCPZ-500 trades DDR LVDS simplicity for higher speed and JESD204B scalability - making ADS58H43IZCR optimal for cost- and latency-sensitive wideband receiver designs requiring on-chip SNR enhancement.

Availability

ADS58H43IZCR is available at Aetrix Electronics and suitable for multi-carrier cellular infrastructure base stations, active antenna arrays for wireless infrastructures, and communications test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ADS58H43IZCR 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-performance data converters for industrial, automotive, and communications markets.

The ADS58H43IZCR belongs to TI's high-speed receiver ADC product line, designed specifically for wideband digitization in cellular infrastructure - emphasizing SNR, SFDR, low latency, and flexible operating modes for next-generation wireless base stations.

FAQ

What are the supported operating modes of the ADS58H43IZCR?

The ADS58H43IZCR supports three distinct operating modes per ADC block: 11-bit standard mode at 250 MSPS, 11-bit SNRBoost3G+ mode delivering enhanced SNR in up to 90-MHz bandwidth, and 14-bit burst mode also at 250 MSPS. These modes are configured independently for the A/B and C/D channel pairs via serial interface registers, allowing mixed-mode operation within a single ADS58H43IZCR device.

Does the ADS58H43IZCR require external VCM generation?

No, the ADS58H43IZCR integrates an on-die VCM generator that outputs 1.15 V on dedicated VCM pins (A6, A7, D3, D10), internally connected and shared across all four analog input channels. This eliminates the need for external bias circuitry, reduces component count, and improves inter-channel common-mode matching - directly enhancing amplitude and phase consistency in MIMO and beamforming applications using ADS58H43IZCR.

What is the latency of the ADS58H43IZCR in SNRBoost3G+ mode?

In SNRBoost3G+ 90-MHz bandwidth mode, the ADS58H43IZCR exhibits 13 output clock cycles of latency from sample initiation to valid DDR LVDS data output. When digital gain and offset correction are also enabled, latency increases to 17 cycles. This deterministic latency - confirmed in TI SBAS598 Table 7 - is critical for real-time digital predistortion feedback loops where ADS58H43IZCR serves as the receive-path digitizer.

How does the DDR LVDS interface of the ADS58H43IZCR simplify FPGA interfacing?

The ADS58H43IZCR's DDR LVDS interface outputs 14-bit parallel data per channel with source-synchronous clocks (CLKOUTABP/M for A/B, CLKOUTCDP/M for C/D), eliminating the need for high-frequency system clocks or complex deskew logic. With guaranteed 0.85 ns setup time and 100-Ω differential termination, it enables reliable capture in Xilinx or Intel FPGAs using standard LVDS I/O banks - significantly reducing timing closure effort compared to single-data-rate or JESD204B interfaces in ADS58H43IZCR-based designs.

What thermal management considerations apply to the ADS58H43IZCR?

The ADS58H43IZCR has a junction-to-board thermal resistance (θJB) of 12.6°C/W and requires a properly designed PCB thermal pad (exposed die attach pad) connected to internal ground planes. At 1.55 W typical power dissipation, maintaining ≤85°C case temperature demands ≥2 oz copper on inner layers and ≥4 thermal vias under the ZCR package. TI's thermal metrics (SBAS598 p.3) confirm that board-level thermal design directly impacts sustained SFDR performance - especially above 170 MHz input frequency where ADS58H43IZCR's spectral integrity is most sensitive to junction temperature rise.