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Texas Instruments ADS9110IRGER
- Part No.:
- ADS9110IRGER
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
ADS9110IRGER.pdf
- Description:
- IC ADC 18BIT SAR 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,580
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Product details
Overview
ADS9110IRGER from Texas Instruments is an 18-bit, 2MSPS successive approximation register (SAR) analog-to-digital converter optimized for high-precision, high-speed industrial data acquisition. It delivers ±0.5LSB INL, 100dB SNR, and –118dB THD at full throughput, with unipolar differential input range up to ±5V and operation across –40°C to +125°C. It serves as the core ADC in test equipment front-ends requiring low-latency, no-missing-code performance.
For engineers reviewing the ADS9110IRGER datasheet, ADS9110IRGER pinout, ADS9110IRGER application, or ADS9110IRGER equivalent, key selection criteria include its enhanced-SPI interface clocking at 40MHz (vs. 140MHz standard SPI), 15mW total power at 2MSPS, JESD8-7A-compliant 1.8V digital I/O, and VQFN-24 package with exposed thermal pad.
Technical Context
The ADS9110IRGER implements a charge-redistribution SAR architecture with internal conversion clocking, enabling deterministic 300–340ns conversion time and true no-latency output. Its converter module fully disconnects AINP/AINM during conversion and reacquires in <150ns, supporting oversampling for dynamic range enhancement.
The interface module integrates multiSPI™ (enhanced-SPI) with optional parity bit appending, source-synchronous modes (internal/external clock), and JESD8-7A-compliant 1.8V digital I/O. It supports three serial protocols-SPI-compatible, source-synchronous external clock, and source-synchronous internal clock-with RVS serving as status strobe or ADCST reflection depending on CS state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 18-bit - delivers 262,144 distinct codes with no missing codes guaranteed over temperature |
| Sample Rate | 2MSPS - enables real-time capture of signals up to 1MHz Nyquist bandwidth with oversampling capability |
| INL / DNL | ±0.5LSB / ±0.75LSB - ensures accurate DC measurement linearity and monotonicity critical for closed-loop control |
| SNR / THD | 100dB / –118dB - achieves >16.3 ENOB at 2kHz, supporting high-fidelity signal reconstruction in medical imaging |
| Power Dissipation | 15mW total at 2MSPS - splits as 9mW AVDD + 6mW DVDD/REF, enabling thermally constrained PCB layouts |
| Reference Range | 2.5V to 5V - independent of AVDD, allowing flexible scaling without external op-amp buffers |
| Operating Temp | –40°C to +125°C - fully specified for extended industrial and automotive under-hood environments |
Pinout & Package
ADS9110IRGER is housed in a 4mm × 4mm, 24-pin VQFN package (RGE) with an exposed thermal pad recommended to be connected to GND for optimal thermal performance (RθJB = 8.9°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINP / AINM | Analog input pair | Differential inputs accepting ±VREF unipolar range; internally disconnected during conversion to prevent sampling error |
| REFP / REFM | Reference voltage terminals | Accept 2.5V–5V reference independently of AVDD; REFM must be tied to system analog ground |
| CONVST | Conversion start trigger | Rising edge initiates acquisition-to-conversion transition; minimum pulse width 30ns |
| CS | Chip select | Active-low enable for serial interface; SDO-x tri-states when high; controls RVS functional mode |
| SCLK / SDI / SDO-0–3 / RVS | Enhanced-SPI interface | Supports 40MHz 3-wire enhanced-SPI (with parity) or 100MHz source-synchronous modes; RVS acts as data-ready strobe or ADCST monitor |
| RST | Asynchronous reset | Low pulse ≥100ns resets all registers to default; recovery time 1250µs before valid conversion |
| AVDD / DVDD / GND | Power supplies | Separate 1.8V analog/digital rails reduce noise coupling; dual AVDD pins (13,14) and dual GND (11,15) improve PSRR |
Key Features
| Feature | Design Value |
|---|---|
| No-latency output | Delivers completed conversion result immediately after tconv (300–340ns), eliminating pipeline delay for real-time control loops |
| Enhanced-SPI (multiSPI™) | Reduces required SCLK frequency to 40MHz at 2MSPS - simplifies PCB routing, lowers EMI, and eases FPGA timing closure |
| Data parity support | Appends parity bit to 18-bit output stream, enabling host-side validation of ADC data integrity in safety-critical systems |
| Flexible low-power modes | NAP mode draws 500µA and wakes in 300ns; PD mode draws 1µA with 250µs wake-up - enables adaptive power scaling per throughput demand |
| JESD8-7A-compliant I/O | Guarantees 1.8V digital interface compatibility with modern FPGAs and low-voltage microcontrollers without level-shifting |
Applications
| Test and Measurement | Motor Control |
|---|---|
|
Use Scenario: High-accuracy benchtop multimeters and automated test equipment capturing transient waveforms with minimal jitter. IC Role / Device Role / Timing Role: Primary high-speed sampling ADC acquiring synchronized voltage/current pairs at 2MSPS with deterministic latency. Use Value: ±0.5LSB INL and 100dB SNR ensure traceable metrology-grade measurements; no-latency output enables immediate post-processing. |
Use Scenario: Real-time current sensing in servo drives and inverters for field-oriented control (FOC) with fast loop closure. IC Role / Device Role / Timing Role: Dual-channel current feedback ADC interfacing directly to isolation amplifiers, delivering synchronized samples to DSP/FPGA. Use Value: 2MSPS rate supports >20kHz PWM switching harmonics; 18-bit resolution resolves sub-mA ripple in 50A phase currents. |
| Medical Imaging | High-Precision Industrial |
|
Use Scenario: Ultrasound beamformer front-end digitizing echo signals from phased-array transducers. IC Role / Device Role / Timing Role: Low-noise, low-distortion ADC capturing RF envelope data with wide dynamic range and minimal harmonic artifacts. Use Value: –118dB THD and 123dB SFDR suppress spurious tones that could mask weak tissue echoes; extended temp range supports portable units. |
Use Scenario: Precision weigh scales and strain-gauge-based load cells in factory automation requiring long-term stability. IC Role / Device Role / Timing Role: High-linearity ADC converting mV-level bridge outputs with integrated reference buffering and low-drift offset. Use Value: ±0.5LSB INL and <1μV/°C offset drift ensure <0.005%FS accuracy over temperature; 15mW power enables fanless enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS9120IRGER | 16-bit, 2.5MSPS, pin-compatible variant with lower resolution but higher throughput; same VQFN-24 package and multiSPI™ interface | Better suited for bandwidth-limited applications where 16-bit resolution suffices and >2MSPS is required | Select ADS9120IRGER when throughput >2MSPS is critical and ENOB ≥15.5 is acceptable |
| AD7606C-18BSTZ | 18-bit, 1MSPS, simultaneous-sampling 8-channel SAR ADC; requires external reference and separate power domains | Designed for multi-channel synchronized acquisition (e.g., power quality analyzers), not single-channel high-speed streaming | Choose AD7606C-18BSTZ only when 8-channel parallel sampling is mandatory and 1MSPS/channel meets timing needs |
Compared with ADS9110IRGER, ADS9120IRGER trades 2-bit resolution for +0.5MSPS throughput in identical layout, while AD7606C-18BSTZ provides channel count at half the sample rate and significantly higher system complexity - making ADS9110IRGER optimal for single-channel, low-latency, high-ENOB industrial DAQ.
Availability
ADS9110IRGER is available at Aetrix Electronics and suitable for test and measurement instrumentation, motor control feedback systems, and medical imaging subsystems requiring stable component supply and extended temperature qualification.
Supply support for ADS9110IRGER 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 ADS9110IRGER belongs to TI's high-performance SAR ADC product line, engineered specifically for applications demanding both speed (≥2MSPS) and resolution (≥18-bit) in thermally demanding, space-constrained industrial environments.
FAQ
What is the maximum supported reference voltage for the ADS9110IRGER?
The ADS9110IRGER accepts an external reference voltage from 2.5V to 5V applied between REFP and REFM pins. This range is independent of AVDD, allowing direct use of standard 5V references without level-shifting. At 5V reference, the device achieves full 18-bit performance with ±0.5LSB INL and 100dB SNR, as verified across –40°C to +125°C.
Does the ADS9110IRGER support true differential input operation?
Yes, the ADS9110IRGER supports unipolar fully differential analog input between AINP and AINM, with input range of ±VREF. The converter uses charge-redistribution architecture and disconnects both inputs during conversion to prevent sampling errors. Common-mode rejection is 80dB at DC–20kHz, and the device specifies CMRR vs. frequency up to 600kHz.
How does the enhanced-SPI (multiSPI™) interface of the ADS9110IRGER differ from standard SPI?
The ADS9110IRGER's enhanced-SPI reduces required SCLK frequency to 40MHz at 2MSPS (vs. 140MHz for standard SPI), achieved via optimized data framing and optional parity bit inclusion. It maintains full SPI protocol compatibility while simplifying board layout, lowering EMI, and easing timing closure on FPGAs - without requiring changes to host firmware logic.
What power-saving modes does the ADS9110IRGER offer, and how quickly can it resume conversion?
The ADS9110IRGER offers NAP (nap) and PD (power-down) modes. NAP draws 500µA and resumes conversion in 300ns; PD draws 1µA and requires 250µs wake-up time. Both modes retain register settings and reference bias. These are controlled via dedicated command sequences over the serial interface and enable adaptive power scaling based on real-time throughput demands.
Is the ADS9110IRGER pin-compatible with any other devices in the same family?
Yes, the ADS9110IRGER is pin-compatible with the ADS9120IRGER - a 16-bit, 2.5MSPS variant sharing identical VQFN-24 (RGE) packaging, pinout, power sequencing, and multiSPI™ interface. This allows hardware reuse across resolution-throughput trade-offs without PCB redesign, though firmware must accommodate the reduced data width.
ADS9110IRGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 18
- Sampling Rate (Per Second):
- 2M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 1.65V ~ 1.95V
- Voltage - Supply, Digital:
- 1.65V ~ 1.95V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-VQFN (4x4)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS9110IRGER FAQ
1.How can I place an order for ADS9110IRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS9110IRGER 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 ADS9110IRGER reliable?
The price and inventory of ADS9110IRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS9110IRGER is usually 5 days.
3.What payment methods are accepted for ADS9110IRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS9110IRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS9110IRGER?
ADS9110IRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS9110IRGER 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 ADS9110IRGER?
For technical support, including ADS9110IRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS9110IRGER requirements.
6.How does Aetrix verify that ADS9110IRGER is sourced from the original manufacturer or authorized distributors?
All ADS9110IRGER 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 ADS9110IRGER meets industry standards.
7.What is the process for return or replacement of ADS9110IRGER?
All ADS9110IRGER units undergo pre-shipment inspection (PSI). If there is an issue with ADS9110IRGER, 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 ADS9110IRGER part is unused and in its original packaging.
Return procedure for ADS9110IRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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