Octal, 10-Bit, 40 MSPS/65 MSPS,
Serial LVDS, 1.8 V ADC
Data Sheet
AD9212
FEATURES
FUNCTIONAL BLOCK DIAGRAM
AVDD
PDWN
DRVDD
DRGND
8 analog-to-digital converters (ADCs) integrated into 1 package
100 mW ADC power per channel at 65 MSPS
SNR = 60.8 dB (to Nyquist)
ENOB = 9.8 bits
SFDR = 80 dBc (to Nyquist)
AD9212
10
VIN + A
VIN – A
D + A
D – A
SERIAL
LVDS
ADC
ADC
10
10
VIN + B
VIN – B
D + B
D – B
SERIAL
LVDS
Excellent linearity
DNL = 0.3 LSB (typical); INL = 0.4 LSB (typical)
Serial LVDS (ANSI-644, default)
Low power, reduced signal option (similar to IEEE 1596.3)
Data and frame clock outputs
325 MHz, full-power analog bandwidth
2 V p-p input voltage range
VIN + C
VIN – C
D + C
D – C
SERIAL
LVDS
ADC
10
10
VIN + D
VIN – D
D + D
D – D
SERIAL
LVDS
ADC
ADC
ADC
VIN + E
VIN – E
SERIAL
LVDS
D + E
D – E
1.8 V supply operation
Serial port control
10
10
VIN + F
VIN – F
D + F
D – F
SERIAL
LVDS
Full-chip and individual-channel power-down modes
Flexible bit orientation
Built-in and custom digital test pattern generation
Programmable clock and data alignment
Programmable output resolution
Standby mode
VIN + G
VIN – G
D + G
D – G
SERIAL
LVDS
ADC
ADC
10
VIN + H
VIN – H
D + H
D – H
SERIAL
LVDS
VREF
FCO+
FCO–
SENSE
APPLICATIONS
0.5V
DATA RATE
MULTIPLIER
Medical imaging and nondestructive ultrasound
Portable ultrasound and digital beam-forming systems
Quadrature radio receivers
Diversity radio receivers
Tape drives
Optical networking
REFT
REFB
REF
SELECT
SERIAL PORT
INTERFACE
DCO+
DCO–
SCLK/
DTP
RBIAS AGND CSB SDIO/
ODM
CLK+
CLK–
Figure 1.
The ADC contains several features designed to maximize
Test equipment
flexibility and minimize system cost, such as programmable
clock and data alignment and programmable digital test pattern
generation. The available digital test patterns include built-in
deterministic and pseudorandom patterns, along with custom user-
defined test patterns entered via the serial port interface (SPI).
GENERAL DESCRIPTION
The AD9212 is an octal, 10-bit, 40 MSPS/65 MSPS ADC with an
on-chip sample-and-hold circuit designed for low cost, low power,
small size, and ease of use. Operating at a conversion rate of up to
65 MSPS, it is optimized for outstanding dynamic performance
and low power in applications where a small package size is critical.
The AD9212 is available in a RoHS-compliant, 64-lead LFCSP. It is
specified over the industrial temperature range of −40°C to +85°C.
The ADC requires a single 1.8 V power supply and LVPECL-/
CMOS-/LVDS-compatible sample rate clock for full performance
operation. No external reference or driver components are
required for many applications.
PRODUCT HIGHLIGHTS
1. Small Footprint. Eight ADCs are contained in a small package.
2. Low Power of 100 mW per Channel at 65 MSPS.
3. Ease of Use. A data clock output (DCO) operates up to
300 MHz and supports double data rate (DDR) operation.
4. User Flexibility. SPI control offers a wide range of flexible
features to meet specific system requirements.
The ADC automatically multiplies the sample rate clock for
the appropriate LVDS serial data rate. A data clock (DCO)
for capturing data on the output and a frame clock (FCO) for
signaling a new output byte are provided. Individual channel
power-down is supported and typically consumes less than
2 mW when all channels are disabled.
5. Pin-Compatible Family. This includes the AD9222 (12-bit)
and AD9252 (14-bit).
Rev. E
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