a
Dual Channel, 14-Bit, 65 MSPS A/D Converter
with Analog Input Signal Conditioning
AD13465
state-of-the-art high-density circuit design and laser-trimmed
thin-film resistor networks to achieve exceptional channel
matching and impedance control, and provide for significant
board area savings.
Multiple options are provided for driving the analog input, includ-
ing single-ended, differential, and optional series filtering. The
AD13465 also offers the user a choice of analog input signal
ranges to further minimize additional external signal condition-
ing, while remaining general-purpose. The AD13465 operates
with
±
5.0 V for the analog signal conditioning, 5.0 V supply for
the analog-to-digital conversion, and 3.3 V digital supply for
the output stage. Each channel is completely independent, allow-
ing operation with independent Encode and Analog Inputs, while
maintaining minimal crosstalk and interference.
The AD13465 is packaged in a 68-lead ceramic gull wing
package. Manufacturing is done on Analog Devices’ MIL-
38534 Qualified Manufacturers Line (QML) and components
are available up to Class-H (–40°C to +85°C). The components
are manufactured using Analog Devices’ high-speed comple-
mentary bipolar process (XFCB).
PRODUCT HIGHLIGHTS
FEATURES
Dual, 65 MSPS Minimum Sample Rate
Channel-to-Channel Matching, 1% Gain Error
90 dB Channel-to-Channel Isolation
DC-Coupled Signal Conditioning
85 dB Spurious-Free Dynamic Range
Selectable Bipolar Inputs
( 1 V and 0.5 V Ranges)
Integral Two-Pole Low-Pass Nyquist Filter
Two’s Complement Output Format
3.3 V Compatible Outputs
1.8 W per Channel
Industrial and Military Grade
APPLICATIONS
Radar Processing
Optimized for I/Q Baseband Operation
Phased Array Receivers
Multichannel, Multimode Receivers
GPS Antijamming Receivers
Communications Receivers
PRODUCT DESCRIPTION
The AD13465 is a complete dual channel signal processing
solution including on-board amplifiers, references, ADCs,
and output termination components to provide optimized
system performance. The AD13465 has on-chip track-and-hold
circuitry and utilizes an innovative multipass architecture to
achieve 14-bit, 65 MSPS performance. The AD13465 uses
1. Guaranteed sample rate of 65 MSPS.
2. Input signal conditioning included; gain and impedance
matching.
3. Single-ended, differential, or off-module filter options.
4. Fully tested/characterized full channel performance
5. Pin compatible with 12-bit AD13280 product family.
AMP-IN-B-2
AMP-IN-B-1
FUNCTIONAL BLOCK DIAGRAM
AMP-IN-A-2
AMP-IN-A-1
AMP-OUT-A
A–IN
A+IN
DROUTA
(LSB) D0A
D1A
D2A
D3A
D4A
D5A
D6A
D7A
D8A
D9A
D10A
11
100
TIMING
VREF
DROUT
14
OUTPUT TERMINATORS
3
100
OUTPUT TERMINATORS
9
VREF
DROUT
14
5
AMP-OUT-B
B+IN
B–IN
AD13465
TIMING
DROUTB
ENC
ENC
D13B (MSB)
D12B
D11B
D10B
D9B
REV. 0
ENC
ENC
D11A D12A D13A
(MSB)
D0B D1B D2B D3B D4B D5B
(LSB)
D6B D7B D8B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
AD [ ANALOG DEVICES ]
