My Inquiry
My Account
Texas Instruments TLV0834IDR
- Part No.:
- TLV0834IDR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV0834IDR.pdf
- Description:
- IC ADC 8BIT SAR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,193
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV0834IDR 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 supply, featuring serial control interface, ratiometric operation with VCC 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. Used in sensor signal conditioning, battery-powered data acquisition, and microcontroller-peripheral interfacing.
For engineers reviewing the TLV0834IDR datasheet, TLV0834IDR pinout, TLV0834IDR application, or TLV0834IDR equivalent, key selection considerations include its 3-V serial ADC architecture, 14-pin SOIC (D) package, 32 µs conversion time at 250 kHz clock, software-configurable multiplexer, and compatibility with TTL/MOS logic levels.
Technical Context
The TLV0834IDR implements a sample-data-comparator SAR architecture with an integrated 4-channel analog multiplexer controlled via 5-bit serial address word. Conversion initiation requires CS low followed by start bit and channel/address bits on DI, with MSB-first output on DO and SARS indicating active conversion.
It supports three input modes: single-ended (CH0–CH3 to AGND), true differential (adjacent pairs like CH0/CH1), and pseudodifferential (common-mode reference on REF). The internal resistive ladder and comparator operate ratiometrically against VCC or external REF, enabling full-scale encoding of sub-VCC analog spans.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete digital codes over full input range |
| Supply Voltage Range | 2.7 V to 3.6 V - enables direct integration into 3-V systems without level-shifting |
| Conversion Time | 32 µs at fCLK = 250 kHz - fixed 8-clock-cycle cycle for deterministic timing |
| Total Unadjusted Error | ±1 LSB - includes offset, full-scale, linearity, and multiplexer errors without calibration |
| Input Channels | 4-channel software-configurable MUX - supports single-ended, differential, or pseudodifferential assignments per conversion |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments with no derating required |
| Serial Interface | 3-wire SPI-compatible (CS, CLK, DI/DO) - enables bidirectional single-wire operation using high-impedance DO |
Pinout & Package
TLV0834IDR is housed in a 14-pin SOIC (D) package with 1.27 mm pitch, JEDEC MS-012AC compliant, RoHS-compliant NIPDAU lead finish, and moisture sensitivity level (MSL) 1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pad; must be left floating or tied to GND per layout best practice |
| 2 (CS) | Chip select | Active-low enable for serial interface and internal logic; must remain low during full conversion sequence |
| 3–6 (CH0–CH3) | Analog input channels | Configurable as positive inputs for single-ended, differential, or pseudodifferential modes |
| 7 (DGTL GND) | Digital ground | Reference for digital I/O; should be star-connected to AGND at single point near device |
| 8 (VCC) | Power supply | 2.7–3.6 V analog/digital supply; also serves as default voltage reference when REF is unconnected |
| 9 (DI) | Serial data input | Accepts 5-bit address word (start bit + 4-bit config); sampled on CLK rising edge |
| 10 (CLK) | Serial clock input | Drives internal shift register and SAR timing; supports 10–250 kHz (2.7 V) or up to 600 kHz (3.3 V) |
| 11 (SARS) | SAR status output | Active-high open-drain signal indicating conversion in progress; used for handshaking |
| 12 (DO) | Serial data output | MSB-first 8-bit result; tri-states when CS high or during addressing phase |
| 13 (REF) | Reference voltage input | Accepts external 0–VCC reference to scale full-scale range; internally buffered |
| 14 (ANLG GND) | Analog ground | Reference for analog inputs and internal ladder; isolated from DGTL GND to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ratiometric operation with VCC | Eliminates need for precision external reference; full-scale accuracy maintained across VCC variation (±1/4 LSB) |
| Software-configurable input topology | Single-ended, differential (adjacent pairs), or pseudodifferential mode selected per conversion via serial command |
| Low-power serial interface | Typical ICC = 0.75 mA at 3.3 V; standby current <1 µA per off-channel; suitable for battery-operated systems |
| TTL/MOS logic compatibility | VIH ≥ 2 V, VIL ≤ 0.8 V, VOH ≥ 2.4 V, VOL ≤ 0.4 V - interoperable with legacy and modern microcontrollers |
| Remote sensor digitization | Serial link allows placement at analog source (e.g., thermistor, strain gauge), minimizing noise-prone analog trace lengths |
Applications
| Industrial Sensor Interface | Portable Data Logger |
|---|---|
|
Use Scenario: Monitoring temperature, pressure, and humidity sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: 4-channel ADC digitizing multiple analog sensor outputs with configurable gain and common-mode rejection. Use Value: Enables single-chip acquisition of four independent industrial signals while maintaining ±1 LSB accuracy across –40°C to 85°C. |
Use Scenario: Battery-powered environmental monitoring unit logging soil moisture and ambient light over weeks. IC Role / Device Role / Timing Role: Low-voltage ADC interfacing with MSP430 or similar ultra-low-power MCU via 3-wire serial link. Use Value: 2.7–3.6 V operation and sub-1 mA typical supply current extend battery life; serial interface reduces GPIO count. |
| Motor Control Feedback | Medical Instrument Front-End |
|
Use Scenario: Sampling current-sense amplifier outputs and potentiometer position feedback in BLDC motor drives. IC Role / Device Role / Timing Role: Simultaneous sampling of two differential current channels and one single-ended position input. Use Value: Differential mode rejects common-mode noise from PWM switching; 32 µs conversion ensures real-time loop response. |
Use Scenario: Analog front-end for portable ECG or pulse oximeter devices requiring compact, reliable signal digitization. IC Role / Device Role / Timing Role: Isolated ADC converting biopotential signals referenced to patient-specific common-mode voltage. Use Value: Pseudodifferential mode accepts non-ground-referenced biosignals; ratiometric scaling maintains accuracy despite battery droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel, 3-V serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV0834CDR | Same silicon, 0°C to 70°C temperature grade; identical pinout, timing, and electrical specs | Restricted to commercial temperature range; unsuitable for extended industrial environments | Select TLV0834CDR only for cost-sensitive consumer or lab-grade applications with ambient thermal control. |
| ADC0834CN | Legacy 5-V part with internal Zener regulator; not 3-V compatible; requires external 5-V supply and level translation | Lacks ratiometric operation; higher power; incompatible with 3-V microcontrollers without interface logic | Choose ADC0834CN only for legacy 5-V system upgrades where supply infrastructure cannot be modified. |
Compared with TLV0834IDR, TLV0834CDR offers identical functionality at lower cost but sacrifices industrial temperature support, while ADC0834CN requires full system voltage redesign and adds interface complexity-neither provides drop-in replacement capability.
Availability
TLV0834IDR is available at Aetrix Electronics and suitable for industrial sensor interface, portable data logging, and motor control feedback applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for TLV0834IDR 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 and embedded processing technologies, with decades of expertise in precision data converters and industrial-grade IC design.
The TLV0834IDR belongs to TI's low-voltage precision ADC product line, engineered for robust performance in resource-constrained, battery-powered, and harsh-environment applications where 3-V operation and serial simplicity are critical.
FAQ
What is the maximum clock frequency supported by TLV0834IDR at 3.3 V?
The TLV0834IDR supports up to 600 kHz clock frequency when operated at VCC = 3.3 V, as specified in the recommended operating conditions table. At 2.7 V, the maximum clock frequency is reduced to 250 kHz. Exceeding these limits may cause timing violations or conversion errors, and the device does not guarantee operation beyond these values.
Does TLV0834IDR require an external reference voltage?
No, TLV0834IDR does not require an external reference voltage. It operates ratiometrically using VCC as the reference by default. The REF pin may be left unconnected or tied to VCC; an external reference between 0 V and VCC can be applied to scale the full-scale range, but it is optional-not mandatory-for basic operation.
Can TLV0834IDR perform differential measurements between non-adjacent channels?
No, TLV0834IDR only supports differential measurements between adjacent channel pairs (e.g., CH0/CH1 or CH2/CH3). The functional description explicitly states that differential inputs are assigned to adjacent pairs and cannot act differentially with any other channel. Non-adjacent differential operation is not supported by the internal multiplexer architecture.
What is the meaning of the ".A" suffix in some TLV0834IDR part markings?
The ".A" suffix in TLV0834IDR.A denotes the extended temperature grade marking variant, indicating the device is characterized for –40°C to +85°C operation. This marking appears on units shipped in tape-and-reel format with full industrial temperature qualification; the base TLV0834IDR part number refers to the same silicon and package but may ship without the explicit ".A" marking depending on packaging configuration.
How is the TLV0834IDR's 4-channel multiplexer configured during operation?
The TLV0834IDR's 4-channel multiplexer is configured via a 5-bit serial command sent on the DI line: one start bit followed by four configuration bits defining channel selection (CH0–CH3), single-ended/differential mode, and polarity. This command is shifted in on CLK rising edges before conversion begins; no external hardware configuration is required.
TLV0834IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 41k
- Number of Inputs:
- 2, 3, 4
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 14-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
TLV0834IDR FAQ
1.How can I place an order for TLV0834IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV0834IDR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLV0834IDR reliable?
The price and inventory of TLV0834IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV0834IDR is usually 5 days.
3.What payment methods are accepted for TLV0834IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV0834IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV0834IDR?
TLV0834IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV0834IDR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLV0834IDR?
For technical support, including TLV0834IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV0834IDR requirements.
6.How does Aetrix verify that TLV0834IDR is sourced from the original manufacturer or authorized distributors?
All TLV0834IDR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLV0834IDR meets industry standards.
7.What is the process for return or replacement of TLV0834IDR?
All TLV0834IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV0834IDR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLV0834IDR part is unused and in its original packaging.
Return procedure for TLV0834IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV0834IDR Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
