AD9059BRS Fast Delivery |IC PHOENIX CO.,LIMITED

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AD9059BRS
Dual 8-Bit, 60 MSPS A/D Converter
REV.0Dual 8-Bit, 60 MSPS A/D Converter
FUNCTIONAL BLOCK DIAGRAM
AINA
AINB
VREF
GND
PWRDN
VDD
D7A–D0A
D7B–D0B
FEATURES
Dual 8-Bit ADCs on a Single Chip
Low Power: 400 mW Typical
On-Chip +2.5 V Reference and T/Hs
1 V p-p Analog Input Range
Single +5 V Supply Operation
+5 V or +3 V Logic Interface
120 MHz Analog Bandwidth
Power-Down Mode: < 12 mW
APPLICATIONS
Digital Communications (QAM Demodulators)
RGB & YC/Composite Video Processing
Digital Data Storage Read Channels
Medical Imaging
Digital Instrumentation
PRODUCT DESCRIPTION
The AD9059 is a dual 8-bit monolithic analog-to-digital con-
verter optimized for low cost, low power, small size, and ease of
use. With a 60 MSPS encode rate capability and full-power
analog bandwidth of 120 MHz typical, the component is ideal
for applications requiring multiple ADCs with excellent dy-
namic performance.
To minimize system cost and power dissipation, the AD9059
includes an internal +2.5 V reference and dual track-and-hold
circuits. The ADC requires only a +5 V power supply and an
encode clock. No external reference or driver components are
required for many applications.
The AD9059’s single encode input is TTL/CMOS compatible
and simultaneously controls both internal ADC channels. The
parallel 8-bit digital outputs can be operated from +5 V or +3 V
supplies. A power-down function may be exercised to bring to-
tal consumption to < 12 mW when ADC data is not required
for lengthy periods of time. In power-down mode the digital
outputs are driven to a high impedance state.
Fabricated on an advanced BiCMOS process, the AD9059
is available in a space saving 28-lead surface mount plastic
package (28 SSOP) and is specified over the industrial
(–40°C to +85°C) temperature range.
Customers desiring single channel digitization may consider the
AD9057, a single 8-bit, 60 MSPS monolithic based on the
AD9059 ADC core. The AD9057 is available in a 20-lead sur-
face mount plastic package (20 SSOP) and is specified over the
industrial temperature range.
PIN CONFIGURATION
AD9059–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(VD = +5 V, VDD = +3 V; external reference; ENCODE = 60 MSPS unless otherwise noted)
NOTESGain error and gain temperature coefficient are based on the ADC only (with a fixed +2.5 V external reference).tV and tPD are measured from the 1.5 V level of the ENCODE to the 10%/90% levels of the digital output swing. The digital output load during test is not to exceed
an ac load of 10 pF or a dc current of ±40 μA.SNR/harmonics based on an analog input voltage of –0.5 dBFS referenced to a 1.0 V full-scale input range.Digital supply current based on VDD = +3 V output drive with <10 pF loading under dynamic test conditions.Power dissipation is based on 60 MSPS encode and 10.3 MHz analog input dynamic test conditions (VD = +5 V ± 5%, VDD = +3 V ± 5%).Typical thermal impedance for the RS style (SSOP) 28-pin package: θJC = 39°C/W, θCA = 70°C/W, θJA = 109°C/W.
Specifications subject to change without notice.
AD9059
EXPLANATION OF TEST LEVELS
Test Level–100% production tested.–100% production tested at +25°C and sample tested at
specified temperatures.
III–Sample tested only.–Parameter is guaranteed by design and characteriza-
tion testing.–Parameter is a typical value only.–100% production tested at +25°C; guaranteed by
design and characterization testing for industrial tem-
perature range.
ABSOLUTE MAXIMUM RATINGS*
VD, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7 V
Analog Inputs . . . . . . . . . . . . . . . . . . . . .–0.5 V to VD + 0.5 V
Digital Inputs . . . . . . . . . . . . . . . . . . . . . .–0.5 V to VD + 0.5 V
VREF Input . . . . . . . . . . . . . . . . . . . . . . . .–0.5 V to VD + 0.5 V
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . .20 mA
Operating Temperature . . . . . . . . . . . . . . . . .–55°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . .–65°C to +150°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Exposure to absolute
maximum ratings for extended periods may affect device reliability.
ORDERING GUIDE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD9059 features proprietary ESD protection circuitry, permanent damage may
AD9059
PIN DESCRIPTIONS
Table I.Digital Coding (VREF = +2.5 V)N + 3N + 5
N + 1
N + 2
N + 4
tPDN – 1N + 2
ENCODE
AIN
DIGITAL
OUTPUTS
Figure 1.Timing Diagram
PIN CONFIGURATION
AINA
ENCODE
GND
AINB
VREF
PWRDN
D7B (MSB)
VDD
GNDGND
VDD
D7A (MSB)
D6A
D5A
D4AD4B
D5B
D6B
D3A
D2A
D1A
D0A (LSB)
D3B
D0B (LSB)
D1B
D2B
FREQUENCY – MHz
030
Figure 2.FFT Spectral Plot 60 MSPS, 10.3 MHz
FREQUENCY – MHz
030
Figure 3.Spectral Plot 60 MSPS, 76 MHz
ANALOG INPUT FREQUENCY – MHz16020406080100120140
Figure 4.SINAD/SNR vs. AIN Frequency
Figure 5.Harmonic Distortion vs. AIN Frequency
Figure 6.Two-Tone IMD
Figure 7.SINAD/SNR vs. Encode Rate
AD9059
ENCODE RATE – MSPS
POWER – mW
450
Figure 8.Power Dissipation vs. Encode Rate
TEMPERATURE – °C
44.0
Figure 9.SINAD/SNR vs. Temperature
TEMPERATURE – °C
GAIN ERROR – %
–1.0
Figure 10.ADC Gain vs. Temperature (With External
+2.5 V Reference)
Figure 11.tPD vs. Temperature/Supply (+3 V/+5 V)
Figure 12.SINAD/SNR vs. Encode Pulse Width
ANALOG FREQUENCY – MHz
ADC GAIN – dB50010100
–102050200
Figure 13.ADC Frequency Response

Partno	Mfg	Dc	Qty	Available	Descript
AD9059BRS	ANALOG	N/a	29	avai	Dual 8-Bit, 60 MSPS A/D Converter