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Texas Instruments TLV0834ID
- Part No.:
- TLV0834ID
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV0834ID.pdf
- Description:
- IC ADC 8BIT SAR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,495
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Product details
Overview
TLV0834ID 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 TLV0834ID datasheet, TLV0834ID pinout, TLV0834ID application, or TLV0834ID equivalent, this device is selected for low-voltage embedded sensor digitization where serial interface minimizes I/O count, ratiometric operation simplifies reference design, and multiplexer flexibility enables multi-sensor monitoring in space-constrained systems.
Technical Context
The TLV0834ID implements a sample-and-hold comparator-based successive-approximation architecture with an integrated 4-channel analog multiplexer controlled via 3–4 bit serial address words. Its serial interface uses CS, CLK, DI, DO, and SARS signals to support both MSB-first and LSB-first output formats, with SARS indicating active conversion status.
It accepts analog inputs from 0 V to VCC using either internal VCC as reference or external voltage applied to REF, enabling ratiometric measurement or full-scale encoding of sub-VCC spans. Input polarity and mode (SGL/DIF) are software-configurable per channel via serial command sequence.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete digital codes over full-scale input range |
| Supply Voltage Range | 2.7 V to 3.6 V - compatible with modern 3.3 V logic and battery-powered systems |
| Total Unadjusted Error | ±1 LSB - ensures monotonicity and ≤0.4% full-scale accuracy without calibration |
| Conversion Time | 32 µs at fCLK = 250 kHz - enables up to ~31.25 kSPS sustained sampling rate |
| Input Channels | 4-channel multiplexer - supports independent selection of CH0–CH3 with configurable polarity |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood environments |
| Reference Mode | Ratiometric or external REF - allows direct use of VCC or precision external reference for improved stability |
Pinout & Package
TLV0834ID is supplied in a 14-pin SOIC (D) package with 1.27 mm pitch, 8.65 mm × 3.91 mm body, and surface-mount footprint. Pin 1 is marked by a beveled corner or dot; pin numbering follows standard SOIC convention (counterclockwise from pin 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pad - must remain unconnected or grounded per layout best practice |
| 2 (CS) | Chip select | Active-low enable for serial interface and internal logic; must stay low during full conversion cycle |
| 3–6 (CH0–CH3) | Analog input channels | Configurable as single-ended (+), differential (–), or pseudodifferential inputs via serial address |
| 7 (DGTL GND) | Digital ground | Return path for digital logic; should be separated from analog ground with single-point connection |
| 8 (VCC) | Power supply | 2.7–3.6 V main supply; also serves as default reference when REF is unconnected |
| 9 (DI) | Serial data input | Accepts start bit + 3–4 bit address word to configure channel and mode before conversion |
| 10 (CLK) | Serial clock input | Drives internal shift register and SAR logic; supports 10–600 kHz depending on VCC |
| 11 (SARS) | Start/Busy indicator | High during conversion; used for polling or interrupt-driven synchronization |
| 12 (DO) | Serial data output | MSB-first output stream (8 bits), followed optionally by LSB-first format if enabled |
| 13 (REF) | Reference voltage input | Accepts external reference (1.3–5.9 kΩ input resistance); overrides VCC as conversion reference |
| 14 (ANLG GND) | Analog ground | Return path for analog inputs and reference; critical for noise immunity and accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Software-configurable input modes | Single-ended, differential, or pseudodifferential per channel - eliminates need for external signal conditioning circuitry |
| Serial interface with minimal pins | Uses only CS, CLK, DI, DO, and SARS - reduces microcontroller I/O usage and PCB routing complexity |
| True ratiometric operation | VCC serves as both supply and reference - maintains accuracy across supply variations without external regulator |
| Low-power consumption | 0.2–0.75 mA typical ICC - suitable for battery-operated sensors and portable instrumentation |
| Industrial temperature qualification | –40°C to +85°C operation - validated for deployment in harsh environmental conditions without derating |
Applications
| Temperature Monitoring System | Industrial Motor Control Feedback |
|---|---|
Use Scenario: Digitizing outputs from multiple NTC thermistors mounted across a PCB or enclosure. IC Role / Device Role / Timing Role: 4-channel ADC interfaces directly to thermistor voltage dividers; serial output reduces MCU pin count. Use Value: Enables compact, calibrated temperature mapping with ±1 LSB linearity error and no external reference required. | Use Scenario: Sampling current-sense resistor voltages and position encoder signals in BLDC motor drives. IC Role / Device Role / Timing Role: Simultaneous acquisition of phase currents and rotor position feedback via multiplexed analog inputs. Use Value: Supports real-time closed-loop control with 32 µs conversion time and deterministic timing via SARS signal. |
| Portable Data Logger | Smart Sensor Node |
Use Scenario: Battery-powered environmental logger capturing voltage outputs from humidity, pressure, and light sensors. IC Role / Device Role / Timing Role: Low-voltage ADC (2.7–3.6 V) with ratiometric reference ensures stable readings across battery discharge curve. Use Value: Eliminates need for precision voltage reference IC, reducing BOM cost and power budget by >100 µA. | Use Scenario: Wireless node measuring strain gauge bridges and thermocouple cold-junction compensation. IC Role / Device Role / Timing Role: Configures CH0–CH1 as differential pair for bridge output; CH2 as single-ended for RTD bias. Use Value: Achieves common-mode rejection >60 dB and <0.1% gain error without external instrumentation amplifier. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel, 8-bit serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV0834CD | Same architecture and pinout, but rated for 0°C to 70°C only | Not suitable for extended temperature deployments; lower cost for commercial-grade designs | Select TLV0834CD only when ambient operating temperature remains within 0–70°C and cost sensitivity outweighs thermal margin |
| ADC0834CN | Functionally equivalent at 3 V but includes internal Zener regulator network; requires 5 V supply for regulation | Higher supply overhead and power dissipation; incompatible with pure 3.3 V systems | Choose ADC0834CN only if legacy 5 V infrastructure exists and internal reference regulation is required |
Compared with TLV0834CD and ADC0834CN, the TLV0834ID offers guaranteed –40°C to 85°C operation without external regulation, making it the sole choice for industrial field equipment where thermal robustness and 3.3 V compatibility are mandatory.
Availability
TLV0834ID is available at Aetrix Electronics and suitable for industrial motor control, portable instrumentation, smart sensor nodes, and environmental monitoring systems requiring stable component supply across extended temperature ranges.
Supply support for TLV0834ID 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 over 50 years of innovation in precision data converters and industrial-grade ICs.
The TLV0834ID belongs to TI's TLV083x family of low-voltage serial ADCs, designed specifically for resource-constrained embedded systems needing flexible analog input handling, minimal I/O count, and reliable operation in demanding thermal environments.
FAQ
What is the maximum clock frequency supported by TLV0834ID?
The TLV0834ID supports up to 600 kHz clock frequency when operated at VCC = 3.3 V, and up to 250 kHz at VCC = 2.7 V. This variation is specified in the recommended operating conditions table. Exceeding these limits may cause timing violations or conversion errors. The TLV0834ID datasheet defines minimum pulse widths and setup/hold times that must be met regardless of clock rate.
Does TLV0834ID require an external reference voltage?
No, TLV0834ID does not require an external reference voltage. It operates ratiometrically using VCC as both supply and reference when the REF pin is left unconnected. An external reference can be applied to REF for improved accuracy or to encode sub-VCC spans, but it is optional. The TLV0834ID input resistance to REF is 1.3–5.9 kΩ.
Can TLV0834ID perform differential measurements between non-adjacent channels?
No, TLV0834ID only supports differential measurements between adjacent channel pairs: CH0–CH1 and CH2–CH3. The functional description explicitly states "differential inputs are assigned to adjacent channel pairs" and prohibits cross-pair differential operation. Pseudodifferential mode using the common terminal is not available on the TLV0834ID - that feature is exclusive to the 8-channel TLV0838 variant.
What is the meaning of the 'I' suffix in TLV0834ID?
The 'I' suffix in TLV0834ID denotes industrial temperature grade, specifying guaranteed operation from –40°C to +85°C. This is confirmed in the "AVAILABLE OPTIONS" table and absolute maximum ratings section. The 'D' suffix indicates SOIC (D) package. Together, TLV0834ID identifies the industrial-grade, 14-pin SOIC version of the TLV0834 4-channel ADC.
Is TLV0834ID pin-compatible with ADC0834?
Yes, TLV0834ID is functionally equivalent to ADC0834 at 3 V supply and shares identical pinout and serial protocol, but omits the internal Zener regulator network. The datasheet states: "Functionally Equivalent to the ADC0834 and ADC0838 at 3-V Supply Without the Internal Zener Regulator Network." No PCB changes are required when substituting TLV0834ID for ADC0834 in 3 V designs.
TLV0834ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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:
- -
TLV0834ID FAQ
1.How can I place an order for TLV0834ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV0834ID 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 TLV0834ID reliable?
The price and inventory of TLV0834ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV0834ID is usually 5 days.
3.What payment methods are accepted for TLV0834ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV0834ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV0834ID?
TLV0834ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV0834ID 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 TLV0834ID?
For technical support, including TLV0834ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV0834ID requirements.
6.How does Aetrix verify that TLV0834ID is sourced from the original manufacturer or authorized distributors?
All TLV0834ID 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 TLV0834ID meets industry standards.
7.What is the process for return or replacement of TLV0834ID?
All TLV0834ID units undergo pre-shipment inspection (PSI). If there is an issue with TLV0834ID, 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 TLV0834ID part is unused and in its original packaging.
Return procedure for TLV0834ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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