Analog Devices Inc. LTC2310HMSE-14#PBF

Overview

LTC2310HMSE-14#PBF from Analog Devices (formerly Linear Technology) is a 14-bit + sign successive approximation register (SAR) analog-to-digital converter with differential inputs, 2 Msps throughput, ±2.5 LSB INL guaranteed over –40°C to 125°C, and integrated 4.096 V temperature-compensated reference. It operates from single 3.3 V or 5 V supply, delivers 82 dB SNR at 500 kHz input, and supports CMOS or LVDS serial interface - ideal for high-speed industrial data acquisition and motor control systems.

For engineers reviewing the LTC2310HMSE-14#PBF datasheet, LTC2310HMSE-14#PBF pinout, LTC2310HMSE-14#PBF application, or LTC2310HMSE-14#PBF equivalent, key selection criteria include guaranteed no-missing-codes performance at full temperature range, low-power nap/sleep modes, wide common-mode input range (0 V to VDD), and dual-mode I/O compatibility with FPGA or DSP host interfaces.

Technical Context

The LTC2310HMSE-14#PBF implements a 15-bit SAR architecture with internal sample-and-hold, delivering true 14-bit + sign resolution with no missing codes across its full –40°C to 125°C operating range. Its differential input stage accepts ±4.096 V full-scale swing (8 V_P-P) with 85 dB CMRR at 2.2 MHz and supports arbitrary common-mode voltages from 0 V to VDD without configuration.

It features dual-reference capability: an onboard 4.096 V (±20 ppm/°C max) buffered reference and a 1.25 V external reference input (REFIN), enabling flexible precision scaling. The SPI-compatible serial interface operates in CMOS (1.8 V–2.5 V OVDD) or LVDS mode (100 Ω termination), with no cycle latency and 220 ns conversion time.

Key Specifications

Pinout & Package

Package: 16-lead (4 mm × 5 mm) plastic MSOP with exposed pad (Pin 17), RoHS-compliant, lead-free finish. Thermal resistance θ_JA = 40°C/W; exposed pad must be soldered to PCB ground plane for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7980BRMZ-REEL and MAX11198ETE+, the LTC2310HMSE-14#PBF uniquely combines 2 Msps speed, H-grade temperature range, dual-reference flexibility, and LVDS/CMOS configurability - making it optimal for thermally demanding, noise-sensitive, high-throughput measurement systems requiring minimal external components.

Availability

LTC2310HMSE-14#PBF is available at Aetrix Electronics and suitable for high-speed motor control, industrial data acquisition, and automotive battery management requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2310HMSE-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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The LTC2310HMSE-14#PBF belongs to ADI's precision SAR ADC product line, designed specifically for high-speed, low-latency, wide-dynamic-range measurement applications where guaranteed performance across extreme temperatures and minimal external component count are critical.

FAQ

What is the guaranteed integral nonlinearity (INL) specification for the LTC2310HMSE-14#PBF over its full operating temperature range?

The LTC2310HMSE-14#PBF guarantees ±2.5 LSB INL over its full –40°C to +125°C operating range. This specification ensures monotonic behavior and accurate end-point linearity without calibration, supporting demanding closed-loop control applications such as servo positioning and power converter feedback where code-to-code consistency is critical. The value is tested and specified per the device's datasheet conditions.

Does the LTC2310HMSE-14#PBF support both CMOS and LVDS digital interfaces simultaneously?

No, the LTC2310HMSE-14#PBF does not support simultaneous CMOS and LVDS operation. Its interface mode is selected by the voltage applied to the CMOS/LVDS pin (Pin 10): grounded for CMOS, tied to OVDD for LVDS, or left floating for low-power LVDS. Each mode configures distinct driver circuitry and power consumption profiles - users must select one interface type per design and route accordingly.

Can the internal reference of the LTC2310HMSE-14#PBF be disabled to use an external reference source?

Yes, the internal 4.096 V reference buffer of the LTC2310HMSE-14#PBF can be disabled by grounding the REFIN pin (Pin 2). When REFIN = GND, the REFOUT pin (Pin 3) becomes high-impedance and may be driven by an external reference in the 1.25 V to VDD range. This allows system-level reference sharing or ultra-low-noise external references while retaining the LTC2310HMSE-14#PBF's full performance specifications.

What is the minimum acquisition time required for the LTC2310HMSE-14#PBF to achieve full 14-bit accuracy?

The LTC2310HMSE-14#PBF requires a minimum acquisition time of 280 ns to settle the internal sampling capacitor to 14-bit accuracy. This parameter is guaranteed over temperature and supply voltage and is independent of input signal slew rate. Designers must ensure the CNV pulse timing accommodates this window - typically achieved using the tACQ specification in conjunction with tCYC (500 ns minimum) to maintain 2 Msps throughput.

How does the nap mode power consumption of the LTC2310HMSE-14#PBF compare between 3.3 V and 5 V supply operation?

At 3.3 V supply, the LTC2310HMSE-14#PBF nap mode draws 2.8 mA to 4 mA (typical 3.4 mA); at 5 V supply, it draws 2.8 mA to 4 mA (typical 3.4 mA) - the nap current is supply-independent because it primarily powers the reference buffer and control logic, not the analog core. Sleep mode, however, drops to 0.1 µA at 3.3 V and 0.5 µA at 5 V, reflecting deeper power gating of bias circuits.