ADS42B49
- Maximum Sample Rate: 250 MSPS
- Ultralow Power:
- 850-mW Total Power at 250 MSPS
- Integrated Analog Input Buffer:
- Input Capacitance: 2.2 pF at 170 MHz
- Input Resistance: 1.1 kΩ at 170 MHz
- High Dynamic Performance:
- 85-dBc SFDR at 170 MHz
- 70.7-dBFS SNR at 170 MHz
- Crosstalk: > 85 dB at 185 MHz
- Programmable Gain Up to 6 dB for
SNR and SFDR Trade-off - DC Offset Correction
- Output Interface Options:
- 1.8-V Parallel CMOS Interface
- Double Data Rate (DDR) LVDS with
Programmable Swing:- Standard Swing: 350 mV
- Low Swing: 200 mV
- Supports Low Input Clock Amplitude
Down to 200 mVPP - Package: 9.00 mm × 9.00 mm, 64-Pin Quad Flat
No-Lead (VQFN) Package
The ADS42B49 is an ultralow-power dual-channel, 14-bit analog-to-digital converter (ADC) featuring integrated analog input buffers. It uses innovative design techniques to achieve high dynamic performance, while consuming extremely low power. The presence of analog input buffers makes this device easy to drive and helps achieve high performance over a wide frequency range. The ADS42B49 is well-suited for multi-carrier, wide bandwidth communications applications.
The ADS42B49 has gain options that can be used to improve SFDR performance at lower full-scale input ranges. This device also includes a dc offset correction loop that can be used to cancel the ADC offset. Both DDR LVDS and parallel CMOS digital output interfaces are available in a compact VQFN-64 PowerPAD™ package.
The device includes internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. The ADS42B49 is specified over the industrial temperature range (–40°C to 8°C).
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS42B49 Dual-Channel, 14-Bit, 250-MSPS Ultralow-Power ADC with Analog Input Buffer datasheet (Rev. C) | PDF | HTML | 30 Mar 2016 |
Application note | Design Considerations for Avoiding Timing Errors during High-Speed ADC, LVDS Dat (Rev. A) | 22 May 2015 | ||
User guide | ADS42B4x - User's Guide (Rev. A) | 30 Jan 2015 | ||
Application note | Why Use Oversampling when Undersampling Can Do the Job? (Rev. A) | 19 Jul 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS42B49EVM — ADS42B49 evaluation module for dual channel, buffered ADC inputs up to 250 MSPS
The ADS42B49EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS42B49 device, an extremely low power dual channel 14-bit 250 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a (...)
DATACONVERTERPRO-SW — High Speed Data Converter Pro GUI Installer, v5.20
This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)
Supported products & hardware
Products
High-speed DACs (>10 MSPS)
Transmitters
Receivers
High-speed ADCs (≥10 MSPS)
Ultrasound AFEs
RF-sampling transceivers
Hardware development
Evaluation board
Software
Support software
SLAC546 — ADS42B49EVM GUI
Supported products & hardware
Products
High-speed ADCs (≥10 MSPS)
Hardware development
Evaluation board
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
SBAC119 — TIGAR (Texas Instruments Graphical Evaluation of ADC Response Tool)
Supported products & hardware
Products
Receivers
High-speed ADCs (≥10 MSPS)
Hardware development
Evaluation board
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RGC) | 64 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Support & training
TI E2E™ forums with technical support from TI engineers
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