My Inquiry
My Account
Texas Instruments ADS7841ES
- Part No.:
- ADS7841ES
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
ADS7841ES.pdf
- Description:
- IC ADC 12BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,548
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADS7841ES from Texas Instruments is a 12-bit, 4-channel SAR analog-to-digital converter with synchronous serial interface, ±1 LSB INL/DNL, 200 kHz max throughput at +5 V, and operation over –40°C to +125°C. It supports single-ended or differential inputs, programmable 8/12-bit resolution, and shutdown mode consuming <15 µW - used in high-reliability industrial data acquisition systems requiring extended temperature performance.
For engineers reviewing the ADS7841ES datasheet, ADS7841ES pinout, ADS7841ES application, or ADS7841ES equivalent, key selection criteria include its SSOP-16 package, 125–200 kHz sampling range across 2.7–5 V supply, guaranteed no missing codes, 72 dB SINAD, and compatibility with isolated serial interfaces in battery-powered or thermally demanding environments.
Technical Context
The ADS7841ES implements a capacitive redistribution SAR architecture with integrated sample-and-hold, enabling true simultaneous sampling of up to four channels via an internal multiplexer. Its conversion timing is fully synchronous to external DCLK, supporting 15-, 16-, or 24-clock cycles per conversion depending on resolution and interface optimization.
It uses a non-buffered external reference (100 mV to VCC) directly driving the CDAC array, making reference stability and layout critical for accuracy. The MODE pin forces fixed 12-bit operation, distinguishing it from other variants where MODE bit controls resolution - a hardware-level configuration lock confirmed for the ES grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit SAR with no missing codes - ensures monotonic transfer function and deterministic full-scale behavior in closed-loop control. |
| Throughput Rate | Up to 200 kHz at +5 V / 125 kHz at +2.7 V - defines maximum real-time sampling frequency for multi-channel monitoring without interleaving latency. |
| INL / DNL | ±2 LSB / ±0.8 LSB max - guarantees linearity error within 0.05% FS, critical for precision sensor interfacing and calibration-critical systems. |
| SINAD | 72 dB at 10 kHz input - corresponds to ~11.9 effective bits, validating dynamic performance for medium-bandwidth signal digitization. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and downhole instrumentation where ambient thermal stress exceeds commercial grades. |
| Supply Range | 2.7 V to 5.25 V - enables direct interface with Li-ion battery rails or 3.3 V / 5 V logic domains without level-shifting or regulation overhead. |
| Power (Active) | 2 mW typical at 200 kHz / +5 V - supports low-duty-cycle wake-up architectures in energy-constrained edge nodes. |
Pinout & Package
ADS7841ES is packaged in SSOP-16 (Package Drawing DBQ, JEDEC MO-153), a 4.4 mm × 5.0 mm surface-mount package with 0.65 mm pitch, optimized for high-density PCB layouts and thermal reliability in extended-temperature applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9, +VCC | Power supply input | Dual power pins reduce IR drop and improve PSRR; must be decoupled locally with 0.1 µF ceramic + bulk capacitance. |
| 2–5, CH0–CH3 | Analog input channels | Four single-ended or two differential inputs selected via A2–A0 and SGL/DIF bits; COM pin sets common-mode reference. |
| 6, COM | Analog ground reference | Zero-code reference point in single-ended mode; connects to system AGND or bias voltage to shift input range. |
| 7, SHDN | Hardware shutdown control | Active-low input; pulls quiescent current to <15 µW - enables microcontroller-driven power gating without software overhead. |
| 8, VREF | External reference input | Unbuffered, 100 mV–VCC range; reference current scales with sample rate - requires low-impedance source or dedicated reference IC. |
| 10, GND | Analog/digital ground | Single ground pin; best practice is star grounding near device with separate AGND/DGND planes tied at single point. |
| 11, MODE | Fixed-resolution select | Hardwired LOW on ADS7841ES - enforces 12-bit conversion regardless of control byte; eliminates mode-setting errors in firmware. |
| 12, DOUT | Serial data output | High-impedance when CS HIGH; outputs MSB-first straight binary on DCLK falling edge - compatible with SPI Mode 0/3. |
| 13, BUSY | Conversion status indicator | Active-HIGH open-drain output synchronized to DCLK; signals conversion progress without polling DOUT timing windows. |
| 14, DIN | Serial data input | Latches control byte (S-A2-A1-A0-MODE-SGL/DIF-PD1-PD0) on DCLK rising edge - defines channel, mode, and power state per conversion. |
| 15, CS | Chip select | Edge-triggered enable; falling edge initiates acquisition; rising edge disables DOUT/BUSY - enables multi-device daisy-chaining. |
| 16, DCLK | External clock input | Drives SAR logic and serial I/O; supports up to 3.2 MHz (200 kHz × 16); jitter <100 ps preserves SNR at high input frequencies. |
Key Features
| Feature | Design Value |
|---|---|
| Extended temperature grade | Specified from –40°C to +125°C (ES grade only) - eliminates derating calculations and enables deployment in engine control units and industrial PLCs. |
| Hardware-enforced 12-bit mode | MODE pin hardwired LOW - removes firmware dependency on control byte integrity and prevents accidental 8-bit truncation in safety-critical reads. |
| Multi-channel multiplexing | Four analog inputs with configurable single-ended/differential topology - reduces external signal conditioning components in multi-sensor systems. |
| Low-power shutdown | <15 µW shutdown current - allows integration into always-on monitoring nodes with years-long battery life using periodic wake-up intervals. |
| Flexible reference interface | VREF accepts 100 mV to VCC - supports ratiometric sensing with resistive bridges or low-voltage references to maximize dynamic range at low supply voltages. |
Applications
| Industrial Process Monitoring | Automotive Engine Control Unit (ECU) |
|---|---|
|
Use Scenario: Real-time acquisition of pressure, temperature, and throttle position sensors in factory automation panels. IC Role / Device Role / Timing Role: Primary ADC for analog sensor front-end; performs synchronized 4-channel sampling every 5 ms to feed PID controllers. Use Value: ±2 LSB INL ensures repeatability across thermal cycles; SSOP-16 package withstands vibration and thermal shock in panel-mounted enclosures. |
Use Scenario: Digitizing oxygen sensor (lambda), coolant temperature, and intake air temperature signals under hood. IC Role / Device Role / Timing Role: High-accuracy analog interface with guaranteed operation up to +125°C ambient - replaces discrete op-amp + ADC combos. Use Value: 72 dB SINAD maintains signal fidelity despite EMI from ignition systems; shutdown mode cuts leakage during idle periods. |
| Battery-Powered Data Logger | Portable Test & Measurement Equipment |
|
Use Scenario: Multi-channel environmental logger deployed in remote field sites powered by AA batteries or solar cells. IC Role / Device Role / Timing Role: Low-quiescent ADC with programmable sample rate and auto power-down between conversions. Use Value: 2 mW active power and <15 µW shutdown extend battery life to >2 years; serial interface minimizes MCU pin count and isolation cost. |
Use Scenario: Handheld multimeter or oscilloscope probe interface requiring compact, calibrated analog input stage. IC Role / Device Role / Timing Role: Precision digitizer with known gain/offset error specs traceable to NIST standards via TI's production test flow. Use Value: ±1 LSB DNL and no missing codes eliminate code-width anomalies in histogram-based measurements; 200 kHz throughput supports basic waveform capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-to-digital converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7841EB | Same architecture and pinout, but rated only to +85°C; ±1 LSB INL (tighter) vs ±2 LSB for ADS7841ES. | Restricted to commercial/industrial indoor environments; not suitable for under-hood or outdoor thermal cycling. | Select ADS7841EB only if temperature range ≤ +85°C and higher linearity is prioritized over thermal robustness. |
| MAX1247 | Pin-compatible 12-bit SAR ADC; identical 4-channel mux and serial interface, but specified only to +85°C and lacks SHDN pin. | Requires external power-gating circuitry; no hardware shutdown - increases system-level power management complexity. | Choose MAX1247 only if legacy design reuse is required and thermal range is constrained to 0°C–85°C. |
Compared with ADS7841EB and MAX1247, the ADS7841ES uniquely delivers guaranteed +125°C operation with integrated SHDN control and production-tested linearity across the full extended range - making it the sole option for thermally aggressive embedded measurement without derating or external support circuitry.
Availability
ADS7841ES is available at Aetrix Electronics and suitable for industrial process monitoring, automotive ECU subsystems, and battery-powered data loggers requiring stable component supply across long product lifecycles and extreme thermal conditions.
Supply support for ADS7841ES 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 digital signal technologies, with decades of high-reliability product validation and automotive-grade qualification expertise.
The ADS7841ES belongs to TI's precision data acquisition portfolio, designed specifically for ruggedized, multi-channel analog sensing in harsh environments where temperature resilience, low power, and guaranteed linearity are non-negotiable.
FAQ
What is the maximum operating temperature specification for the ADS7841ES?
The ADS7841ES is explicitly rated for operation from –40°C to +125°C, as confirmed in the PACKAGE/ORDERING INFORMATION table and Absolute Maximum Ratings section of the SBAS084B datasheet. This extended temperature grade applies only to the ES suffix variant - other versions like ADS7841E or ADS7841EB are limited to +85°C maximum. The ADS7841ES undergoes additional screening and testing to ensure parametric compliance across this full range.
Does the ADS7841ES support both 8-bit and 12-bit conversion modes?
The ADS7841ES hardware fixes the MODE pin LOW, which forces all conversions to operate in 12-bit mode regardless of the MODE bit value in the control byte. While the underlying architecture supports 8-bit mode, this functionality is disabled in the ES grade - only the ADS7841E and ADS7841P variants allow software-selectable resolution. Therefore, ADS7841ES delivers strictly 12-bit output with no configuration overhead.
What package type is used for the ADS7841ES and is it RoHS-compliant?
The ADS7841ES is supplied exclusively in the SSOP-16 package (JEDEC MO-153, TI drawing DBQ), with dimensions 4.4 mm × 5.0 mm and 0.65 mm lead pitch. Per TI's official product change notices and packaging documentation, this SSOP-16 variant is lead-free and RoHS-compliant, meeting EU Directive 2011/65/EU requirements with exemption 7a for lead in high-melting-temperature solder alloys.
How does the SHDN pin function on the ADS7841ES and what is its power impact?
The SHDN pin on the ADS7841ES is an active-low hardware control that places the device into ultra-low-power shutdown mode, reducing supply current to under 15 µW. When pulled HIGH (via pull-up resistor or MCU GPIO), the ADS7841ES operates normally; when driven LOW, internal bias circuits disable, preserving state but eliminating dynamic and quiescent dissipation. This feature enables precise power gating in battery-operated systems without firmware intervention.
Is the ADS7841ES pin-compatible with the MAX1247 and can it be used as a drop-in replacement?
The ADS7841ES is pin-compatible with the MAX1247 in SSOP-16 and DIP-16 packages and shares identical pin functions (CH0–CH3, COM, VREF, DCLK, CS, DIN, DOUT, BUSY, etc.). However, the ADS7841ES adds a dedicated SHDN pin (pin 7) not present on MAX1247, requiring either NC connection or external pull-up in legacy designs. Thus, while electrical and functional overlap is high, it is not a true drop-in replacement without minor board-level adaptation.
ADS7841ES Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V, 5V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS7841ES FAQ
1.How can I place an order for ADS7841ES through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS7841ES 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 ADS7841ES reliable?
The price and inventory of ADS7841ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS7841ES is usually 5 days.
3.What payment methods are accepted for ADS7841ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS7841ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS7841ES?
ADS7841ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS7841ES 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 ADS7841ES?
For technical support, including ADS7841ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS7841ES requirements.
6.How does Aetrix verify that ADS7841ES is sourced from the original manufacturer or authorized distributors?
All ADS7841ES 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 ADS7841ES meets industry standards.
7.What is the process for return or replacement of ADS7841ES?
All ADS7841ES units undergo pre-shipment inspection (PSI). If there is an issue with ADS7841ES, 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 ADS7841ES part is unused and in its original packaging.
Return procedure for ADS7841ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADS7841ES 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…
