Texas Instruments TLV0834IPWR

Overview

TLV0834IPWR 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, differential, and pseudodifferential input configurations and is rated for –40°C to 85°C industrial temperature range.

For engineers reviewing the TLV0834IPWR datasheet, TLV0834IPWR pinout, TLV0834IPWR application, or TLV0834IPWR equivalent, key selection considerations include its TSSOP-16 package, ratiometric operation with V_CC or external reference, software-configurable multiplexer addressing, and compatibility with TTL/MOS logic levels in microprocessor-interfaced sensor acquisition systems.

Technical Context

The TLV0834IPWR implements a sample-data comparator architecture with an internal SAR engine and 5-bit shift register for multiplexer control. Its serial protocol uses a start bit followed by a 3–4-bit address word to select channel and input mode (SGL/DIF, ODD/EVEN polarity), enabling flexible analog front-end configuration without parallel bus overhead.

Conversion begins after CS assertion and address latching; SARS goes high during conversion, and DO outputs MSB-first data over eight clock cycles. The device features separate analog and digital ground pins (ANLG GND, DGTL GND), dual reference capability (V_CC or external REF), and high-impedance outputs when CS is high.

Key Specifications

Pinout & Package

TSSOP-16 package (PW), 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not present, RoHS-compliant NIPDAU finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV0834CPWR and ADC0834CN, the TLV0834IPWR uniquely combines 3-V operation, industrial temperature range, and software-configurable differential inputs-making it optimal for new designs targeting compact, low-power, noise-immune analog acquisition in harsh environments.

Availability

TLV0834IPWR is available at Aetrix Electronics and suitable for industrial automation, motor control feedback, and portable instrumentation requiring stable component supply and long-term manufacturability.

Supply support for TLV0834IPWR 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 power management technologies, with decades of expertise in precision data converters.

The TLV0834IPWR belongs to TI's low-voltage, serial-interface ADC product line designed for space-constrained, noise-sensitive industrial and sensor interface applications where simplicity, reliability, and 3-V compatibility are critical.

FAQ

What is the maximum clock frequency supported by TLV0834IPWR at 3.3 V supply?

The TLV0834IPWR supports up to 600 kHz clock frequency when V_CC = 3.3 V, per the recommended operating conditions table. At this rate, conversion time reduces to approximately 13.3 µs (8 clock periods), enabling higher sampling throughput while maintaining ±1 LSB accuracy and proper timing margins for setup/hold requirements.

Does TLV0834IPWR require an external reference voltage, or can it use VCC?

The TLV0834IPWR operates ratiometrically using V_CC as the reference, eliminating the need for an external reference in many applications. It also accepts an external voltage applied to the REF pin, allowing full-scale adjustment down to any value between 0 V and V_CC, which is useful for optimizing resolution over a sub-range analog signal.

Can TLV0834IPWR perform differential measurements between non-adjacent channels?

No. The TLV0834IPWR only supports differential measurements between adjacent channel pairs (e.g., CH0–CH1 or CH2–CH3), as defined by its internal multiplexer architecture and address logic table. Pseudodifferential mode using the common-mode input is not available on the TLV0834IPWR - that feature is exclusive to the 8-channel TLV0838 variants.

What is the purpose of the SARS pin on TLV0834IPWR?

The SARS (Start of Acquisition and Result Status) pin on TLV0834IPWR is an open-drain output that goes high when conversion begins and returns low when conversion completes. It provides hardware handshaking to synchronize host processor read operations and avoids polling DO, improving system efficiency in interrupt-driven firmware designs.

Is TLV0834IPWR pin-compatible with TLV0834CPWR?

Yes, TLV0834IPWR and TLV0834CPWR share identical TSSOP-16 pinout, electrical characteristics, and functional behavior. The only difference is the operating temperature range: TLV0834IPWR is rated for –40°C to 85°C, while TLV0834CPWR is rated for 0°C to 70°C. No PCB layout change is required when substituting for industrial-grade qualification.