Texas Instruments TLV0834IPWRG4

Overview

TLV0834IPWRG4 from Texas Instruments is a 4-channel, 8-bit successive-approximation analog-to-digital converter (ADC) operating from 2.7 V to 3.6 V, featuring serial control interface, ratiometric operation with V_CC reference, and ±1 LSB total unadjusted error. 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 TLV0834IPWRG4 datasheet, TLV0834IPWRG4 pinout, TLV0834IPWRG4 application, or TLV0834IPWRG4 equivalent, this page delivers verified technical context, validated pin functions, confirmed timing behavior at 250 kHz clock, real-world multiplexer addressing logic, and direct alternatives for 3-V ADC system design in sensor interfaces and embedded data acquisition.

Technical Context

The TLV0834IPWRG4 implements a sample-data-comparator SAR architecture with integrated 4-channel analog multiplexer controlled via 5-bit serial address word. Conversion initiates on CS low, uses external clock (up to 250 kHz at 2.7 V), and outputs MSB-first data with automatic 1-clock-cycle multiplexer settling delay.

It supports software-configurable input polarity per channel pair (e.g., CH0/CH1 as differential), enables remote sensor digitization via serial link, and allows V_REF adjustment to encode sub-full-scale analog spans across all 8 bits - critical for precision offset-referenced measurements.

Key Specifications

Pinout & Package

TSSOP-16 package (PW), 5.0 mm × 4.4 mm body, 0.65 mm pitch, exposed pad optional, 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, TLV0834IPWRG4 adds guaranteed operation down to –40°C - essential for outdoor or industrial deployments - while maintaining identical conversion speed, resolution, and serial interface behavior. Against ADC0834CN, it eliminates the internal Zener, enabling true 3-V operation and reducing supply complexity.

Availability

TLV0834IPWRG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin monitoring systems, and portable data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV0834IPWRG4 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 TLV0834IPWRG4 belongs to TI's legacy low-voltage SAR ADC product line, engineered for cost-sensitive, space-constrained embedded systems needing reliable 8-bit digitization with minimal external components and flexible input configuration.

FAQ

What is the maximum clock frequency supported by TLV0834IPWRG4 at 3.3 V?

The TLV0834IPWRG4 supports up to 600 kHz clock frequency when operated at V_CC = 3.3 V, as specified in the recommended operating conditions table. At 2.7 V, the maximum clock drops to 250 kHz. This frequency directly determines conversion throughput: 600 kHz yields ~74 kSPS (excluding address setup time), making TLV0834IPWRG4 suitable for moderate-speed sensor sampling in real-time control applications.

Does TLV0834IPWRG4 require an external reference voltage?

No, TLV0834IPWRG4 does not require an external reference voltage. It operates ratiometrically using V_CC as the reference, enabling accurate conversions as long as the supply is stable. However, the REF pin accepts an external reference (0 V to V_CC) to encode custom input spans - for example, a 2.5-V reference allows full 8-bit resolution over 0–2.5 V instead of 0–3.3 V, improving effective resolution for narrow-range signals.

How is differential input configured on TLV0834IPWRG4?

Differential input on TLV0834IPWRG4 is configured via the 5-bit serial address word shifted into the device during CS low. Adjacent channels (CH0/CH1 or CH2/CH3) form differential pairs; the ODD/EVEN and SGL/DIF bits in the address determine polarity and mode. For instance, setting SGL/DIF = H and ODD/EVEN = L selects CH0(+) and CH1(–). The functional description confirms polarity is software-assignable per pair, and the MUX-address table in the datasheet provides exact bit mappings for all 16 combinations.

Is TLV0834IPWRG4 pin-compatible with TLV0834CPWR?

Yes, TLV0834IPWRG4 is pin-compatible with TLV0834CPWR - both use the TSSOP-16 (PW) package with identical pinout, including NC pins at positions 1, 8, and 16. The only differences are temperature rating (–40°C to +85°C vs. 0°C to +70°C) and part marking (TY0834 vs. TV0834). No PCB redesign is needed when upgrading from CPWR to IPWRG4 for extended-temperature deployment.

What is the purpose of the SARS pin on TLV0834IPWRG4?

The SARS (Successive Approximation Register Status) pin on TLV0834IPWRG4 is an open-drain active-high output that goes high when conversion starts and returns low upon completion. It provides hardware handshaking to indicate conversion progress - useful for triggering interrupts, synchronizing data reads, or gating DO access in microcontroller firmware. Its timing aligns precisely with the 8-clock conversion window, enabling deterministic polling or interrupt-driven operation without relying solely on clock counting.