Texas Instruments ADS1610 User's Manual and Technical Specifications

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ADS1610

SBAS344A − AUGUST 2005 − REVISED SEPTEMBER 2005

16-Bit, 10MSPS

ANALOG-TO-DIGITAL CONVERTER

FEATURES DESCRIPTION

The ADS1610 is a high-speed, high-precision, delta-

High-Speed, Wide Bandwidth ∆Σ ADC sigma (∆Σ) analog-to-digital converter (ADC) with 16-bit

resolution operating from a +5V analog and a +3V digital

10MSPS Output Data Rate

supply. Featuring an advanced multi-stage analog

4.9MHz Signal Bandwidth modulator combined with an on-chip digital decimation

filter, the ADS1610 achieves 86d BFS signal-to-noise ratio

86d BFS Signal-to-Noise Ratio

(SNR) in a 5MHz signal bandwidth. The device offers

−94d B Total Harmonic Distortion outstanding performance at these speeds with a total

harmonic distortion of −94d B.

95d B Spurious-Free Dynamic Range

The ADS1610 ∆Σ topology provides key system-level

On-Chip Digital Filter Simplifies Anti-Alias

design advantages with respect to anti-alias filtering and

Requirements

clock jitter. The design of the anti-alias filter is simplified since the on-chip digital filter greatly attenuates

SYNC Pin for Simultaneous Sampling with

out-of-band signals. The ADS1601s filter has a brick wall

Multiple ADS1610s

response with a very flat passband (±0.0002d B of ripple)

Low 3µs Group Delay followed immediately by a very wide stop band (5MHz to

55MHz). Clock jitter becomes especially critical when

Parallel Interface

digitizing high frequency, large-amplitude signals. The

Directly Connects to TMS320 DSPs ADS1610 significantly reduces clock jitter sensitivity by an

effective averaging of clock jitter as a result of

Out-of-Range Alert Pin

oversampling the input signal.

Pin-Compatible with ADS1605 (5MSPS ADC)

Output data is supplied over a parallel interface and easily connects to TMS320 digital signal processors (DSPs). The power dissipation can be adjusted with an external resistor, allowing for reduction at lower operating speeds.

APPLICATIONS

With its outstanding high-speed performance, the ADS1610 is well-suited for demanding applications in data

Scientific Instruments acquisition, scientific instruments, test and measurement

equipment, and communications. The ADS1610 is offered

Test Equipment

in a TQFP-64 package and is specified from −40°C to

Communications +85°C.

VREFP VREFN VMID RBIAS VCAPAVDD DVDD

Bias Circuits

SYNC IE CLK CS

Parallel

AINP 2x MODE

Interface

∆Σ Digital

Modulator Filter

AINN DRDY

OTR DOUT[15:0]ADS1610

AGND DGND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Power PAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.

Copyright  2005, Texas Instruments Incorporated

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