My Inquiry
My Account
Texas Instruments ADS4242IRGCT
- Part No.:
- ADS4242IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
ADS4242IRGCT.pdf
- Description:
- IC ADC 14BIT PIPELINED 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,177
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADS4242IRGCT from Texas Instruments is a dual-channel, 14-bit, 65 MSPS analog-to-digital converter optimized for ultralow-power operation on a single 1.8-V supply. It delivers 71.4-dBFS SNR and 88-dBc SFDR at 170 MHz input frequency, supports DDR LVDS or parallel CMOS output interfaces, and integrates DC offset correction for wireless infrastructure receiver chains.
For engineers reviewing the ADS4242IRGCT datasheet, ADS4242IRGCT pinout, ADS4242IRGCT application, or ADS4242IRGCT equivalent, this page provides verified specifications, validated pin functions in both LVDS and CMOS modes, industrial-temperature operation (–40°C to 85°C), VQFN-64 package details, and real-world trade-offs between power, SNR, and SFDR at 65 MSPS sampling rate.
Technical Context
The ADS4242IRGCT implements a dual-sampling architecture with independent analog front-ends per channel, each featuring differential inputs (INP_A/INM_A, INP_B/INM_B) and programmable gain up to 6 dB to optimize SNR/SFDR balance. Its internal reference eliminates external reference pins and decoupling capacitors.
It supports two digital output configurations: 1.8-V parallel CMOS (14-bit × 2 channels, multiplexed or non-multiplexed) and DDR LVDS with selectable swing (350 mV standard or 200 mV low), all operating from DRVDD = 1.8 V and AVDD = 1.8 V with separate AGND/DRGND grounds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 discrete amplitude levels per sample for high-fidelity signal capture in wideband receivers. |
| Sampling Rate | 65 MSPS - enables Nyquist-limited bandwidth up to 32.5 MHz, suitable for multi-carrier GSM/UMTS/LTE baseband digitization. |
| SNR @ 170 MHz | 71.4 dBFS - defines usable dynamic range for detecting weak signals amid noise floor in RF receiver IF stages. |
| SFDR @ 170 MHz | 88 dBc - indicates spurious-free performance critical for adjacent-channel interference suppression in dense spectrum environments. |
| Total Power @ 65 MSPS | 183 mW - enables thermal-constrained designs in compact wireless infrastructure modules without active cooling. |
| Supply Voltage | 1.8 V (AVDD & DRVDD) - simplifies power delivery with single-rail LDOs and reduces board-level voltage conversion complexity. |
| Crosstalk | >90 dB @ 185 MHz - ensures minimal inter-channel coupling during simultaneous dual-band or MIMO sampling. |
Pinout & Package
VQFN-64 (RGC) package, 9.00 mm × 9.00 mm body size with exposed thermal pad connected to DRGND. Pinout differs between LVDS and CMOS interface modes; both validated per TI SBAS533E datasheet Figures 6-1 and 6-3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP_A / INM_A INP_B / INM_B | Differential analog inputs (Ch A & Ch B) | Accept ±VREF full-scale differential signals; require external AC-coupling or biasing via VCM (0.95 V output). |
| CLKP / CLKM | Differential sampling clock input | Accept low-amplitude clocks down to 200 mVPP; enable jitter-insensitive sampling synchronized across both channels. |
| DA0P–DA12P / DA0M–DA12M DB0P–DB12P / DB0M–DB12M | Lvds data outputs (Ch A & Ch B) | DDR LVDS pairs carry time-multiplexed 14-bit samples; DA12/DB12 present only on ADS424x family (including ADS4242IRGCT). |
| DA0–DA13 / DB0–DB13 | CMOS data outputs (Ch A & Ch B) | Parallel 14-bit outputs in CMOS mode; DA13/DB13 available only on ADS424x variants, confirming full 14-bit resolution support. |
| VCM | Common-mode voltage reference | Provides stable 0.95-V output to bias differential input pairs-eliminates need for external resistive dividers or op-amp buffers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow power at 65 MSPS | 183 mW total consumption enables fanless deployment in remote radio units and small-cell base stations. |
| Programmable gain (0–6 dB) | Adjusts input sensitivity to maximize SNR for low-level signals or improve SFDR for high-amplitude inputs without hardware changes. |
| Integrated DC offset correction | Automatically nulls channel-specific DC offsets in real time-reduces post-processing burden in digital baseband engines. |
| Dual output interface support | Hardware-selectable LVDS or CMOS mode allows optimization for noise immunity (LVDS) or logic compatibility (CMOS) without redesign. |
| Internal reference architecture | Removes external reference IC and associated decoupling, reducing BOM count and PCB area in space-constrained RF modules. |
Applications
| Wireless Base Station Receiver | Software-Defined Radio (SDR) Front End |
|---|---|
Use Scenario: Digitizing dual IF signals from heterodyne receiver chains in macrocell BTS supporting LTE-Advanced carrier aggregation. IC Role / Device Role / Timing Role: Dual-channel ADC capturing synchronized I/Q data streams at 65 MSPS with <90 dB crosstalk to preserve MIMO channel separation. Use Value: 71.4-dBFS SNR ensures detection of low-SNR control channels; 183-mW power enables dense integration of multiple ADCs per RU board. | Use Scenario: Reconfigurable wideband digitization in military/comms SDR platforms requiring field-upgradable bandwidth and modulation schemes. IC Role / Device Role / Timing Role: High-fidelity signal acquisition engine with programmable gain and DC offset correction to adapt to varying antenna signal levels and front-end drift. Use Value: 88-dBc SFDR prevents spectral regrowth masking adjacent channels during high-PAPR waveforms like OFDM; LVDS interface rejects board-level noise in mixed-signal environments. |
| Power Amplifier Linearization | Multi-Carrier Transceiver Monitoring |
Use Scenario: Capturing feedback path signals for digital predistortion (DPD) in GaN-based PA modules used in 5G massive MIMO arrays. IC Role / Device Role / Timing Role: Low-latency, high-linearity ADC sampling PA output with precise timing alignment to transmitter LO via CLKP/CLKM differential clock input. Use Value: >90 dB crosstalk prevents leakage from main transmit path corrupting DPD error signal; 1.8-V CMOS output simplifies connection to FPGA-based DPD processors. | Use Scenario: Real-time monitoring of multiple uplink/downlink carriers in distributed antenna systems (DAS) with shared RF front ends. IC Role / Device Role / Timing Role: Simultaneous dual-channel sampling of composite RF spectra to feed spectrum sensing and interference mapping algorithms. Use Value: 65 MSPS rate supports instantaneous bandwidth sufficient for 2×20 MHz LTE carriers; internal reference ensures consistent gain calibration across temperature without recalibration cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 14-bit, sub-100 MSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS4245IRGCT | Higher sampling rate (125 MSPS); same 14-bit resolution, VQFN-64 package, and LVDS/CMOS interface options. | Supports wider instantaneous bandwidth (up to 62.5 MHz) for advanced LTE-A and 5G NR FR1 monitoring. | Select when system requires >65 MSPS while retaining identical pinout, power architecture, and feature set. |
| ADS4222IRGCT | 12-bit resolution, 65 MSPS, same package and interface-but lower SNR (67.5 dBFS) and SFDR (82 dBc) at 170 MHz. | Targeted at cost-sensitive, lower-dynamic-range applications such as narrowband IoT gateways or legacy 3G monitoring. | Choose for reduced BOM cost where 14-bit fidelity is unnecessary and SNR margin can be relaxed by ≥4 dB. |
Compared with ADS4245IRGCT, the ADS4242IRGCT trades 60 MSPS of sampling headroom for lower power (183 mW vs. 277 mW) and simpler clocking; versus ADS4222IRGCT, it adds 2 bits of resolution and +6 dB SFDR at identical 65 MSPS, enabling higher-order modulation support in same-footprint upgrades.
Availability
ADS4242IRGCT is available at Aetrix Electronics and suitable for wireless infrastructure, software-defined radio, and power amplifier linearization applications requiring stable component supply, long-term industrial temperature support (–40°C to 85°C), and qualified sourcing for production ramp.
Supply support for ADS4242IRGCT 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 high-performance data converters for industrial, communications, and automotive markets.
The ADS42xx family-including ADS4242IRGCT-is designed specifically for ultralow-power, high-dynamic-range digitization in multi-carrier wireless infrastructure, emphasizing thermal efficiency, integrated references, and flexible digital interfacing without sacrificing SNR or SFDR.
FAQ
What is the maximum input frequency supported by the ADS4242IRGCT while maintaining specified SNR and SFDR?
The ADS4242IRGCT achieves 71.4-dBFS SNR and 88-dBc SFDR at a 170-MHz input frequency, as measured and guaranteed in the TI SBAS533E datasheet. Performance remains valid across the device's full –40°C to 85°C industrial temperature range, with no derating required up to this frequency under recommended operating conditions.
Does the ADS4242IRGCT require an external reference voltage source?
No, the ADS4242IRGCT does not require an external reference. It features an internal reference architecture that eliminates dedicated reference pins and associated decoupling capacitors. The VCM pin outputs a stable 0.95-V common-mode voltage used to bias the differential analog inputs, simplifying system design and reducing component count.
How does the programmable gain function impact the ADS4242IRGCT's dynamic performance?
The ADS4242IRGCT's programmable gain (0–6 dB) allows trade-offs between SNR and SFDR based on input signal level. At higher gain settings, SNR improves for low-amplitude signals, while SFDR may decrease slightly due to increased distortion near full scale. This adjustment is implemented digitally via register control and does not require external components.
What are the key differences between LVDS and CMOS output modes on the ADS4242IRGCT?
In LVDS mode, the ADS4242IRGCT outputs DDR data on differential pairs (e.g., DA0P/DA0M) with selectable swing (350 mV or 200 mV), offering superior noise immunity and lower EMI. In CMOS mode, it drives single-ended 1.8-V logic levels on pins DA0–DA13/DB0–DB13, simplifying interface to FPGAs without differential receivers but consuming more current and radiating more noise.
Is the ADS4242IRGCT pin-compatible with other devices in the ADS42xx family?
Yes, the ADS4242IRGCT shares the same VQFN-64 (RGC) package and pinout with ADS4245IRGCT and ADS4246IRGCT, including identical placement of analog inputs, clock, power, and control pins. LVDS/CMOS data pins are fully aligned, though ADS4242IRGCT uses DA12P/DA12M and DB12P/DB12M (not present on ADS422x variants), confirming functional compatibility within the ADS424x subgroup.
ADS4242IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 65M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-VQFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS4242IRGCT FAQ
1.How can I place an order for ADS4242IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS4242IRGCT 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 ADS4242IRGCT reliable?
The price and inventory of ADS4242IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS4242IRGCT is usually 5 days.
3.What payment methods are accepted for ADS4242IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS4242IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS4242IRGCT?
ADS4242IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS4242IRGCT 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 ADS4242IRGCT?
For technical support, including ADS4242IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS4242IRGCT requirements.
6.How does Aetrix verify that ADS4242IRGCT is sourced from the original manufacturer or authorized distributors?
All ADS4242IRGCT 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 ADS4242IRGCT meets industry standards.
7.What is the process for return or replacement of ADS4242IRGCT?
All ADS4242IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with ADS4242IRGCT, 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 ADS4242IRGCT part is unused and in its original packaging.
Return procedure for ADS4242IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADS4242IRGCT 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…
