Texas Instruments ADS1610IPAPT

Overview

ADS1610IPAPT from Texas Instruments is a 16-bit, 10 MSPS delta-sigma analog-to-digital converter (ADC) with 4.9 MHz signal bandwidth, 86 dBFS SNR, –94 dB THD, and 95 dB SFDR. It features an on-chip digital filter, parallel 16-bit output interface, and SYNC pin for multi-device synchronization. Designed for high-fidelity data acquisition in scientific instruments and test equipment.

For engineers reviewing the ADS1610IPAPT datasheet, ADS1610IPAPT pinout, ADS1610IPAPT application, or ADS1610IPAPT equivalent, key selection considerations include its 60 MHz clock input tolerance, differential analog input architecture (AINP/AINN), dual-supply operation (5V AVDD / 3V DVDD), and TQFP-64 package compatibility with TMS320 DSP interfacing.

Technical Context

The ADS1610IPAPT employs a multi-stage pipelined delta-sigma modulator sampling at 60 MSPS, decimated by an on-chip linear-phase digital filter to deliver 10 MSPS output data. Its brick-wall filter response provides ±0.0002 dB passband ripple and >80 dB stopband attenuation from 5.6 MHz to 54.4 MHz.

It supports four output modes via MODE[1:0], uses external RBIAS (19 kΩ typical) to adjust power dissipation, and integrates dedicated OTR (out-of-range) and DRDY (data-ready) status pins. The device requires separate analog (AGND/AVDD) and digital (DGND/DVDD) supplies with strict ±0.3 V AGND–DGND offset limit.

Key Specifications

Pinout & Package

ADS1610IPAPT is housed in a 64-pin HTQFP (TQFP-64) package with exposed thermal pad. Pin functions are validated per TI SBAS344C datasheet (Rev. October 2006).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed delta-sigma ADC applications.

Compared with ADS1610IPAPT, ADS1602IPAPT trades speed and sync capability for power efficiency and cost, while AD9266BCPZ-10 sacrifices noise performance and jitter immunity for ultra-low latency - making ADS1610IPAPT optimal for wideband, high-SNR, synchronized acquisition where deterministic filtering and multi-unit coherence are required.

Availability

ADS1610IPAPT is available at Aetrix Electronics and suitable for high-speed data acquisition, scientific instrumentation, automated test equipment, and communications signal analysis requiring stable component supply and long-term design-in support.

Supply support for ADS1610IPAPT 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 signal chain solutions.

The ADS1610IPAPT belongs to TI's high-performance delta-sigma ADC product line, engineered specifically for demanding applications requiring wide bandwidth, exceptional SNR, and deterministic digital filtering - targeting test & measurement, scientific research, and high-fidelity communications infrastructure.

FAQ

What is the maximum allowable clock jitter for ADS1610IPAPT when digitizing a 4 MHz, –1 dBFS input signal?

The maximum allowable clock source jitter for ADS1610IPAPT under those conditions is 1.6 ps RMS, as specified in Table 1 of the SBAS344C datasheet. Exceeding this value degrades SNR below the rated 86 dBFS. The ADS1610IPAPT's oversampling architecture reduces jitter sensitivity by √6 versus Nyquist converters, but tight jitter control remains essential for full performance at high input frequencies and amplitudes.

How does the SYNC pin function in ADS1610IPAPT, and what is the required settling time after assertion?

The SYNC pin on ADS1610IPAPT provides asynchronous reset: pulling it low forces DOUT[15:0] to zero and DRDY high. After releasing SYNC on the falling edge of CLK, the ADS1610IPAPT requires exactly 55 DRDY cycles for the on-chip digital filter to fully settle before valid data appears. At 10 MSPS, this equals 5.5 µs - a fixed, deterministic delay critical for multi-device synchronization in ADS1610IPAPT-based systems.

Can ADS1610IPAPT operate with a single-ended analog input, and if so, how is it implemented?

ADS1610IPAPT requires differential analog input (AINP/AINN) for optimum performance and specifies no guaranteed operation with single-ended drive. However, TI's recommended implementation (Figure 27) uses a THS4503 differential amplifier to convert single-ended signals: –VIN is grounded, and VIN drives AINP while AINN receives the inverted, buffered complement. This preserves common-mode rejection and avoids violating the ±VREF differential input range requirement of ADS1610IPAPT.

What are the supply voltage requirements and grounding constraints for ADS1610IPAPT?

ADS1610IPAPT requires AVDD = 4.9–5.1 V (analog) and DVDD = 2.7–3.6 V (digital), with strict AGND–DGND offset limited to ±0.3 V. Separate analog (AGND) and digital (DGND) ground planes must be connected at a single point near the device. Violating the AGND–DGND voltage limit risks increased noise coupling and degraded THD/SFDR performance in ADS1610IPAPT operation.

How is power dissipation adjusted on ADS1610IPAPT, and what is the effect on performance?

ADS1610IPAPT power dissipation is adjusted via external RBIAS resistor connected to pin 8: 19 kΩ yields nominal 170 mA AVDD current (1100 mW total), while increasing RBIAS reduces both current and output data rate. For example, 37 kΩ lowers AVDD current to ~130 mA and data rate to ~6 MSPS. This trade-off directly impacts SNR (–1.5 dB per 10 MSPS step) and THD, allowing system-level optimization of thermal, power, and performance in ADS1610IPAPT designs.