Texas Instruments TLV0834IPW

Overview

TLV0834IPW from Texas Instruments is a 4-channel, 8-bit successive-approximation analog-to-digital converter (ADC) with serial interface, operating from 2.7 V to 3.6 V supply, delivering ±1 LSB total unadjusted error and 32 µs conversion time at 250 kHz clock. It supports single-ended or differential input configurations and is rated for –40°C to 85°C industrial temperature range.

For engineers reviewing the TLV0834IPW datasheet, TLV0834IPW pinout, TLV0834IPW application, or TLV0834IPW equivalent, key selection considerations include its TSSOP-16 package, ratiometric operation with V_CC reference, software-configurable multiplexer addressing, and compatibility with TTL/MOS logic levels in microprocessor-interfaced sensor acquisition systems.

Technical Context

The TLV0834IPW implements a sample-data comparator architecture with internal SAR logic and resistive ladder, enabling precise 8-bit quantization of analog inputs selected via 3–4 bit serial address words. Its serial control interface uses CS, CLK, DI, and DO lines to configure channel selection, input polarity, and single-ended/differential mode without external address decoding logic.

Conversion begins on CS assertion and proceeds over eight clock cycles, outputting MSB-first data followed by LSB-first data. The SARS signal indicates active conversion, while internal settling delay ensures stable multiplexer switching before sampling - critical for accurate digitization of low-noise sensor signals in embedded measurement systems.

Key Specifications

Pinout & Package

TLV0834IPW is housed in a 16-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm pitch, JEDEC MO-153 compliant, and RoHS-compliant NIPDAU lead finish. The package supports surface-mount reflow assembly per MSL Level-1 (260°C peak).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 4-channel, 8-bit serial ADC applications.

Compared with TLV0834CPW, TLV0834IPW provides guaranteed operation down to –40°C - essential for outdoor or engine-bay deployments - while ADC0834N demands higher voltage and lacks ratiometric flexibility, making TLV0834IPW the optimal choice for modern 3-V embedded systems requiring wide temperature resilience and supply simplicity.

Availability

TLV0834IPW is available at Aetrix Electronics and suitable for industrial sensor monitoring, automotive climate control, portable medical instrumentation, and smart energy metering subsystems requiring stable component supply and long-term manufacturability.

Supply support for TLV0834IPW 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 connectivity technologies, with decades of expertise in precision data converters and industrial-grade ICs.

The TLV0834IPW belongs to TI's low-voltage, serial-interface ADC product line designed specifically for cost-sensitive, space-constrained embedded systems needing reliable 8-bit digitization without external reference or complex interface logic.

FAQ

What is the maximum clock frequency supported by TLV0834IPW?

The TLV0834IPW supports up to 600 kHz clock frequency when operated at V_CC = 3.3 V, enabling faster conversion cycles than the base 250 kHz specification. At 2.7 V supply, maximum clock is limited to 250 kHz. These limits ensure proper internal timing margins for SAR logic and comparator settling, as verified in TI's SLAS147B datasheet timing tables.

Does TLV0834IPW require an external reference voltage?

No, TLV0834IPW does not require an external reference voltage. It operates ratiometrically using V_CC as the reference source, allowing full-scale input range of 0 V to V_CC. The REF pin may be left unconnected or tied to V_CC, simplifying design and reducing BOM count compared to reference-dependent ADCs.

Can TLV0834IPW perform differential measurements between arbitrary channels?

No, TLV0834IPW only supports differential measurements between adjacent channel pairs (e.g., CH0–CH1 or CH2–CH3), as defined by its internal multiplexer architecture. Non-adjacent or cross-pair differential configurations are not supported. This constraint is explicitly documented in the MUX-address control logic table of the TLV0834IPW datasheet.

What is the meaning of the "IPW" suffix in TLV0834IPW?

The "I" denotes –40°C to +85°C industrial temperature grade, and "PW" specifies the 16-pin TSSOP package. This distinguishes TLV0834IPW from commercial-grade variants like TLV0834CPW (0°C to 70°C) and SOIC-packaged versions such as TLV0834ID. The marking "TY0834" appears on the physical device body per TI's packaging addendum.

How does TLV0834IPW handle input overvoltage conditions?

TLV0834IPW includes on-chip diodes that conduct for analog inputs exceeding V_CC by more than ~50 mV, potentially causing errors near full scale. To maintain accuracy across the full 0–V_CC range, V_CC must be ≥3.25 V when using 3.3-V reference - a requirement confirmed in Note 3 of the SLAS147B datasheet under absolute maximum ratings.