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Texas Instruments ADS61JB23IRHAR
- Part No.:
- ADS61JB23IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ADS61JB23IRHAR.pdf
- Description:
- IC ADC 12BIT PIPELINED 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,785
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Product details
Overview
ADS61JB23IRHAR from Texas Instruments is a 12-bit, 80 MSPS analog-to-digital converter with buffered analog inputs, JESD204A serial output interface (single- or dual-lane), 71.7 dBFS SNR at 70 MHz IF, 2 Vpp full-scale input range, and operation over –40°C to +85°C for wireless base-station infrastructure signal digitization.
For engineers reviewing the ADS61JB23IRHAR datasheet, ADS61JB23IRHAR pinout, ADS61JB23IRHAR application, or ADS61JB23IRHAR equivalent, this page delivers verified technical context, JESD204A lane configuration options, CML output drive settings, analog input buffer behavior, and industrial-temperature ADC performance metrics critical for RF sampling system design.
Technical Context
The ADS61JB23IRHAR integrates a buffered analog front-end isolating sample/hold switches from source impedance variations, enabling consistent 480 MHz analog input bandwidth and stable 2 Vpp FSR across frequency. Its digital core includes a programmable 0–6 dB fine gain stage and selectable offset binary/twos-complement output formatting.
JESD204A compliance supports both single-lane (20× serialization, up to 1.6 Gbps) and dual-lane (10× serialization, up to 800 MBPS per lane) modes, with configurable scrambling, frame alignment (K28.7), and synchronization via SYNC~P/M pins achieving 9-clock latency for K28.5 insertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution & Sampling Rate | 12-bit, 80 MSPS maximum - delivers Nyquist zone coverage up to 40 MHz with sufficient margin for IF sampling in LTE/WiMAX receivers. |
| SNR @ 70 MHz IF | 71.7 dBFS - enables high-fidelity digitization of narrowband RF signals with >10 ENOB in communication channel bandwidths. |
| JESD204A Data Rate | 1.6 Gbps (single-lane), 800 MBPS/lane (dual-lane) - matches TI TLK SERDES transceivers and reduces FPGA I/O count vs parallel LVDS interfaces. |
| Analog Input Interface | Buffered, 2 Vpp differential FSR, 480 MHz bandwidth - eliminates external driver requirements and maintains >90% amplitude flatness to 200 MHz. |
| Power Dissipation | 440 mW at 80 MSPS (single-lane) - scales linearly with clock rate, supporting dynamic power management in burst-mode systems. |
| Supply Voltages | AVDD = 1.8 V, AVDD_3V = 3.3 V (input buffer), DRVDD = 1.8 V, IOVDD = 1.2–1.9 V - separates analog/digital/CML domains to minimize noise coupling. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade deployment in outdoor base station cabinets and test equipment enclosures. |
Pinout & Package
ADS61JB23IRHAR is housed in a thermally enhanced 6 mm × 6 mm QFN-40 package (RHA suffix) with exposed thermal pad connected to DRGND. Pin 1 is top-left corner (SYNC~P), pin 40 is bottom-right (OVR); pin numbering follows standard QFN counter-clockwise layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKP / CLKM | Differential conversion clock input | Accepts LVDS/LVPECL/CMOS ac-coupled clocks; aperture jitter fixed at 125 fs RMS regardless of input frequency. |
| INP / INM | Differential analog input | High-impedance buffered inputs; common-mode voltage set by internal 1.95 V VCM or external 1.4 V reference. |
| ADC_OUTP<0> / ADC_OUTM<0> | Lane 1 CML data output | Programmable 2–32 mA current drive; requires 50 Ω termination to IOVDD for 0.4 V differential swing. |
| ADC_OUTP<1> / ADC_OUTM<1> | Lane 2 CML data output | Active only in dual-lane mode; identical electrical specs to Lane 1; enables 10× serialization for lower per-lane data rate. |
| SYNC~P / SYNC~M | Differential JESD synchronization request | Triggers K28.5 symbol insertion after 9-clock latency; supports deterministic multi-device frame alignment. |
| PDN / PDN_ANA | Power-down control inputs | PDN enables full chip shutdown (10 mW); PDN_ANA disables analog section only (210 mW), preserving JESD link state. |
| MODE / DFS_EXTREF | 4-level interface configuration pins | Set serial/parallel mode, output format (offset binary/twos-complement), and internal/external reference selection without register writes. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated analog input buffer | Eliminates need for external op-amp drivers; maintains >10 kΩ input impedance up to 200 MHz, reducing THD degradation from source mismatch. |
| JESD204A dual-lane support | Enables 10× serialization (800 MBPS/lane) - lowers PCB routing complexity and EMI vs single-lane 1.6 Gbps, while retaining same FPGA logic resource usage. |
| Programmable CML output current | 2–32 mA adjustment per lane - allows optimization of signal integrity across varying trace lengths and connector losses without external termination changes. |
| Digital fine gain (0–6 dB) | 0.5 dB steps applied post-conversion - compensates for variable RF gain stages without saturating ADC input or degrading SNR floor. |
| Signal level detect outputs (DETECT<3:0>) | Provides 4-bit low-latency ADC code or 16-level RMS power estimate - enables real-time AGC loop closure in under 100 ns. |
Applications
| Wireless Base Station Receiver | RF Test Equipment Digitizer |
|---|---|
Use Scenario: Digitizing 70 MHz IF signals from LTE macrocell downconverters with <1% EVM tolerance. IC Role / Device Role / Timing Role: Primary ADC capturing wide instantaneous bandwidth; JESD204A interface synchronizes with FPGA-based DDC and channelization logic. Use Value: 71.7 dBFS SNR ensures >12-bit effective resolution at IF, while buffered input rejects LO leakage-induced distortion from adjacent mixer stages. |
Use Scenario: High-speed waveform capture in vector signal analyzers requiring <100 fs jitter and repeatable amplitude accuracy. IC Role / Device Role / Timing Role: Front-end sampling engine feeding real-time FFT processing; SYNC~P/M enables sub-nanosecond timestamp alignment across multi-channel units. Use Value: 125 fs aperture jitter and 480 MHz analog bandwidth preserve signal fidelity for modulated waveforms up to 200 MHz carrier frequency. |
| Communications Radar IF Processor | Software-Defined Radio (SDR) Transceiver |
Use Scenario: Converting pulsed radar IF outputs (10–185 MHz) for pulse compression and Doppler analysis in defense EW systems. IC Role / Device Role / Timing Role: High-SFDR ADC operating in HIGH SFDR MODE (register 2h=71h); JESD204A lanes feed FPGA beamforming engines. Use Value: HD3 >80 dBc at 185 MHz enables clean detection of weak targets masked by strong clutter returns in pulse-Doppler processing. |
Use Scenario: Flexible wideband receiver in cognitive radio platforms supporting multiple air interfaces (LTE, 5G NR, Wi-Fi 6E) via reconfigurable sampling. IC Role / Device Role / Timing Role: Reconfigurable ADC with software-controllable gain, output format, and JESD lane count; MODE pin selects serial/parallel configuration. Use Value: Single-lane/dual-lane mode switching and 0–6 dB digital gain allow dynamic adaptation to varying channel bandwidths and signal strengths without hardware change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed JESD204A ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS42JB46IRGC | 14-bit, 250 MSPS, JESD204B, no input buffer, 3.3 V AVDD required | Higher resolution/speed but demands external driver and higher supply; lacks buffered input simplicity | Select when >12-bit ENOB at >100 MSPS is mandatory and board space permits driver circuitry. |
| AD9628BCPZ-125 | 12-bit, 125 MSPS, JESD204B, buffered input, 1.8 V only, no 3.3 V buffer supply | Higher sample rate and JESD204B compatibility, but requires redesign of analog input network due to missing 3.3 V buffer rail | Choose for future-proof JESD204B systems where 125 MSPS and simplified supply scheme outweigh loss of 3.3 V buffer headroom. |
Compared with ADS61JB23IRHAR, ADS42JB46IRGC trades input buffering and supply simplicity for higher speed/resolution, while AD9628BCPZ-125 upgrades JESD version and sample rate but removes the dedicated 3.3 V input buffer supply-requiring careful analog front-end re-biasing.
Availability
ADS61JB23IRHAR is available at Aetrix Electronics and suitable for wireless infrastructure, test instrumentation, radar IF processing, and SDR transceiver designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADS61JB23IRHAR 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 decades of leadership in high-performance data converters and interface solutions.
The ADS61JB23IRHAR belongs to TI's high-speed ADC portfolio designed specifically for RF-sampling architectures in communications infrastructure, where JESD204A integration, analog input buffering, and industrial temperature operation are essential.
FAQ
What is the maximum JESD204A data rate supported by the ADS61JB23IRHAR?
The ADS61JB23IRHAR supports up to 1.6 Gbps in single-lane JESD204A mode (20× serialization at 80 MSPS) and 800 MBPS per lane in dual-lane mode (10× serialization). Both configurations meet JESD204A specification timing margins and include CML output current programmability (2–32 mA) for robust signal integrity across PCB interconnects. This capability is fully documented in the ADS61JB23IRHAR datasheet SLOS755.
Does the ADS61JB23IRHAR require an external analog input driver?
No, the ADS61JB23IRHAR does not require an external analog input driver because it integrates a high-bandwidth (480 MHz) analog input buffer. This buffer provides stable 2 Vpp full-scale differential input range, high input impedance (>10 kΩ), and isolation from sample/hold switch nonlinearities-enabling direct connection to mixers or filters in wireless IF chains. The ADS61JB23IRHAR's buffered architecture is explicitly confirmed in its functional block diagram and description sections.
How does the SYNC~P/M interface function in the ADS61JB23IRHAR?
The SYNC~P/M differential pair in the ADS61JB23IRHAR initiates deterministic JESD204A frame alignment by triggering insertion of K28.5 synchronization characters after a fixed 9-clock latency. It supports both active (falling edge) and de-active (rising edge) requests, with defined setup/hold times relative to the internal clock (CLK_INT). This mechanism enables precise multi-device synchronization in phased-array or multi-channel systems, as detailed in Figures 5–6 and Tables 1–2 of the ADS61JB23IRHAR datasheet.
What power supply rails are required for the ADS61JB23IRHAR?
The ADS61JB23IRHAR requires four independent supply rails: AVDD = 1.8 V (analog core), AVDD_3V = 3.3 V (input buffer), DRVDD = 1.8 V (digital core), and IOVDD = 1.2–1.9 V (CML output buffers). Each rail serves a distinct functional domain to minimize noise coupling; the 3.3 V AVDD_3V rail is mandatory for proper input buffer biasing and cannot be omitted or replaced with 1.8 V. These requirements are specified in the Recommended Operating Conditions table of the ADS61JB23IRHAR datasheet.
Can the ADS61JB23IRHAR operate in both single-lane and dual-lane JESD204A modes?
Yes, the ADS61JB23IRHAR natively supports both single-lane (default) and dual-lane JESD204A output configurations. Lane count is selected via the MODE and SCLK_SERF0_SCR pins in parallel interface mode or through register A6<7:0> (F register) in serial mode. Dual-lane mode uses 10× serialization (800 MBPS/lane), reducing per-lane data rate and easing FPGA I/O constraints versus single-lane 1.6 Gbps operation. This dual-mode capability is validated in the JESD204A OUTPUT INTERFACE section of the ADS61JB23IRHAR datasheet.
ADS61JB23IRHAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- JESD204A
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V, 3V ~ 3.6V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 40-VQFN (6x6)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS61JB23IRHAR FAQ
1.How can I place an order for ADS61JB23IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS61JB23IRHAR 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 ADS61JB23IRHAR reliable?
The price and inventory of ADS61JB23IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS61JB23IRHAR is usually 5 days.
3.What payment methods are accepted for ADS61JB23IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS61JB23IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS61JB23IRHAR?
ADS61JB23IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS61JB23IRHAR 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 ADS61JB23IRHAR?
For technical support, including ADS61JB23IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS61JB23IRHAR requirements.
6.How does Aetrix verify that ADS61JB23IRHAR is sourced from the original manufacturer or authorized distributors?
All ADS61JB23IRHAR 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 ADS61JB23IRHAR meets industry standards.
7.What is the process for return or replacement of ADS61JB23IRHAR?
All ADS61JB23IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with ADS61JB23IRHAR, 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 ADS61JB23IRHAR part is unused and in its original packaging.
Return procedure for ADS61JB23IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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