FEATURES
C0068 High-Speed, Wide Bandwidth ∆Σ ADC
C0068 10MSPS Output Data Rate
C0068 4.9MHz Signal Bandwidth
C0068 86dBFS Signal-to-Noise Ratio
C0068 −94dB Total Harmonic Distortion
C0068 95dB Spurious-Free Dynamic Range
C0068 On-Chip Digital Filter Simplifies Anti-Alias
Requirements
C0068 SYNC Pin for Simultaneous Sampling with
Multiple ADS1610s
C0068 Low 3µs Group Delay
C0068 Parallel Interface
C0068 Directly Connects to TMS320 DSPs
C0068 Out-of-Range Alert Pin
C0068 Pin-Compatible with ADS1605 (5MSPS ADC)
APPLICATIONS
C0068 Scientific Instruments
C0068 Test Equipment
C0068 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 86dBFS signal-to-noise ratio
(SNR) in a 5MHz signal bandwidth. The device offers
outstanding performance at these speeds with a total
harmonic distortion of −94dB.
The ADS1610 ∆Σ topology provides key system-level
design advantages with respect to anti-alias filtering and
clock jitter. The design of the anti-alias filter is simplified
since the on-chip digital filter greatly attenuates
out-of-band signals. The ADS1601s 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 TQFP-64 package and is specified from −40°C to
+85°C.
VREFP
AINP
AINN
VREFN
∆Σ
Modulator
Digital
Filter
Parallel
Interface
Bias Circuits
VMID RBIAS VCAPAVDD
AGND DGND
DVDD
PD
SYNC
CLK
CS
2xMODE
RD
DRDY
OTR
DOUT[15:0]
ADS1610
PRODUCT PREVIEW
ADS1610
SBAS344A − AUGUST 2005 − REVISED SEPTEMBER 2005
16-Bit, 10MSPS
ANALOG-TO-DIGITAL CONVERTER
¨
C0080C0082C0079C0068C0085C0067C0084 C0080C0082C0069C0086C0073C0069C0087 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0099C0111C0110C0099C0101C0114C0110C0115 C0112C0114C0111C0100C0117C0099C0116C0115 C0105C0110 C0116C0104C0101 C0102C0111C0114C0109C0097C0116C0105C0118C0101 C0111C0114 C0100C0101C0115C0105C0103C0110
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Copyright  2005, Texas Instruments Incorporated
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 registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.