FEATURES

· High-Speed, Wide Bandwidth DS ADC

· 10MSPS Output Data Rate

· 4.9MHz Signal Bandwidth

· 86dBFS Signal-to-Noise Ratio

· –94dB Total Harmonic Distortion

· 95dB Spurious-Free Dynamic Range

· On-Chip Digital Filter Simplifies Anti-Alias

Requirements

· SYNC Pin for Simultaneous Sampling with

Multiple ADS1610s

· Low 3ms Group Delay

· Parallel Interface

· Directly Connects to TMS320 DSPs

· Out-of-Range Alert Pin

APPLICATIONS

· Scientific Instruments

· Test Equipment

· Communications

DESCRIPTION

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

delta-sigma (DS) analog-to-digital converter (ADC)

with 16-bit resolution operating from a 5V analog and

a 3V digital supply. Featuring an advanced

multi-stage analog modulator combined with an

on-chip digital decimation filter, the ADS1610

achieves 86 dBFS signal-to-noise ratio (SNR) in a

5MHz signal bandwidth; while the total harmonic

distortion is -94dB.

The ADS1610 DS topology provides key system-level

design advantages with respect to anti-alias filtering

and clock jitter. The design of the user's front-end

anti-alias filter is simplified since the on-chip digital

filter greatly attenuates out-of-band signals. The

ADS1610s filter has a brick wall response with a very

flat passband (±0.0002dB of ripple) followed

immediately by a very wide stop band (5MHz to

55MHz). Clock jitter becomes especially critical when

digitizing high frequency, large-amplitude signals.

The ADS1610 significantly reduces clock jitter

sensitivity by an effective averaging of clock jitter as

a result of oversampling the input signal.

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.

With its outstanding high-speed performance, the

ADS1610 is well-suited for demanding applications in

data acquisition, scientific instruments, test and

measurement equipment, and communications. The ADS1610 is offered in a TQFP64 package and is

specified from –40°C to 85°C.