a
Dual Channel, 14-Bit, 65 MSPS A/D Converter
with Analog Input Signal Conditioning
AD10465
utilize an innovative multipass architecture to achieve 14-bit,
65 MSPS performance. The AD10465 uses innovative high-
density circuit design and laser-trimmed thin-film resistor networks
to achieve exceptional matching and performance, while still
maintaining excellent isolation and providing for significant
board area savings.
The AD10465 operates with
±5.0
V for the analog signal condi-
tioning with a separate 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, allowing operation with
independent encode and analog inputs. The AD10465 also
offers the user a choice of analog input signal ranges to fur-
ther minimize additional external signal conditioning, while
still remaining general-purpose.
The AD10465 is packaged in a 68-lead Ceramic Gull Wing
package, footprint-compatible with the earlier generation AD10242
(12-bit, 40 MSPS) and AD10265 (12-bit, 65 MSPS). Manufac-
turing is done on Analog Devices, Inc. Mil-38534 Qualified
Manufacturers Line (QML) and components are available up to
Class-H (–40°C to +85°C). The AD6644 internal components
are manufactured on Analog Devices, Inc. high-speed comple-
mentary bipolar process (XFCB).
PRODUCT HIGHLIGHTS
FEATURES
Dual, 65 MSPS Minimum Sample Rate
Channel-to-Channel Matching, 0.5% Gain Error
Channel-to-Channel Isolation, >90 dB
DC-Coupled Signal Conditioning Included
Selectable Bipolar Input Voltage Range
( 0.5 V, 1.0 V, 2.0 V)
Gain Flatness up to 25 MHz: < 0.2 dB
80 dB Spurious-Free Dynamic Range
Two’s Complement Output Format
3.3 V or 5 V CMOS-Compatible Output Levels
1.75 W per Channel
Industrial and Military Grade
APPLICATIONS
Phased Array Receivers
Communications Receivers
FLIR Processing
Secure Communications
GPS Antijamming Receivers
Multichannel, Multimode Receivers
PRODUCT DESCRIPTION
The AD10465 is a full channel ADC solution with on-module
signal conditioning for improved dynamic performance and fully
matched channel-to-channel performance. The module includes
two wide dynamic range AD6644 ADCs. Each AD6644 has a dc-
coupled amplifier front end including an AD8037 low distortion,
high bandwidth amplifier, providing a high input impedance
and gain, and driving the AD8138 single-to-differential ampli-
fier. The AD6644s have on-chip track-and-hold circuitry and
1. Guaranteed sample rate of 65 MSPS.
2. Input amplitude options, user configurable.
3. Input signal conditioning included; both channels matched
for gain.
4. Fully tested/characterized performance.
5. Footprint compatible family; 68-lead LCC.
FUNCTIONAL BLOCK DIAGRAM
A
IN
A3 A
IN
A2 A
IN
A1
REF A
A
IN
B3 A
IN
B2 A
IN
B1
DRAOUT
D0A (LSB)
D1A
D2A
D3A
D4A
D5A
D6A
D7A
D8A
D9A
D10A
TIMING
ENC
ENC
11
VREF
DROUT
14
OUTPUT BUFFERING
3
VREF
DROUT
14
OUTPUT BUFFERING
9
5
REF B
DRBOUT
AD10465
ENC
TIMING
ENC
D13B
D12B
D11B
D10B
D9B
D11A D12A D13A (MSB)
D0B (LSB) D1B D2B D3B D4B D5B
D6B D7B D8B
REV. 0
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
which 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
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
AD [ ANALOG DEVICES ]
