Burr Brown Products
from Texas Instruments
¨
SBAS344C – AUGUST 2005 – REVISED OCTOBER 2006
16-Bit, 10 MSPS
ANALOG-TO-DIGITAL CONVERTER
FEATURES
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High-Speed, Wide Bandwidth
∆Σ
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 3µs Group Delay
Parallel Interface
Directly Connects to TMS320 DSPs
Out-of-Range Alert Pin
The ADS1610
∆Σ
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.
AVDD VREFP VREFN VMID
RBIAS
VCAP
DVDD
PD
SYNC
CLK
AINP
AINN
Parallel
Interface
MODE0
MODE1
RD
DRDY
OTR
DOUT[15:0]
AGND
DGND
APPLICATIONS
Scientific Instruments
Test Equipment
Communications
DESCRIPTION
The ADS1610 is a high-speed, high-precision,
delta-sigma (∆Σ) 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.
Bias Circuits
∆Σ
Modulator
Digital
Filter
ADS1610
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.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2006, Texas Instruments Incorporated
BURR-BROWN [ BURR-BROWN CORPORATION ]
