|Category||Data Conversion => ADC (Analog to Digital Converters) => <10 bit|
|Description||Dual 8-Bit, 60 MSPS A/D Converter|
|Datasheet||Download AD9059 datasheet
|Cross ref.||Similar parts: HI5716, TDA8714|
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 +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
The is a dual 8-bit monolithic analog-to-digital converter 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 dynamic 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 +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 +3 V supplies. A power-down function may be exercised to bring total consumption 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 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 a 20-lead surface mount plastic package (20 SSOP) and is specified over the industrial temperature range.TOP VIEW 23 VDD D7A (MSB) 7 (Not to Scale) 22 D7B (MSB) 13 D0A (LSB) 15 D0B (LSB)
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. © Analog Devices, Inc., 1996 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703
Parameter RESOLUTION DC ACCURACY Differential Nonlinearity Integral Nonlinearity No Missing Codes Gain Error1+5 V, VDD +3 V; external reference; ENCODE = 60 MSPS unless otherwise noted)
Temp Test Level Min AD9059BRS Typ Max 8 +25°C Full +25°C Full +25°C Full
ANALOG INPUT Input Voltage Range (Centered +2.5 V) Input Offset Voltage Input Resistance Input Capacitance Input Bias Current Analog Bandwidth CHANNEL MATCHING to B) Gain Delta Input Offset Voltage Delta BANDGAP REFERENCE Output Voltage Temperature Coefficient SWITCHING PERFORMANCE Maximum Conversion Rate Minimum Conversion Rate Aperture Delay (tA) Aperture Uncertainty (Jitter) Output Valid Time (tV)2 Output Propagation Delay (tPD)2 DYNAMIC PERFORMANCE Transient Response Overvoltage Recovery Time Signal-to-Noise Ratio (SINAD) (with Harmonics) fIN = 10.3 MHz fIN = 76 MHz Effective Number of Bits fIN = 10.3 MHz fIN = 76 MHz Signal-to-Noise Ratio (SNR) (Without Harmonics) fIN = 10.3 MHz fIN = 76 MHz 2nd Harmonic Distortion fIN = 10.3 MHz fIN = 76 MHz 3rd Harmonic Distortion fIN = 10.3 MHz fIN = 76 MHz Two-Tone Intermodulation Distortion (IMD) Channel Crosstalk Rejection Differential Phase Differential Gain
Parameter DIGITAL INPUTS Logic "1" Voltage Logic "0" Voltage Logic "1" Current Logic "0" Current Input Capacitance Encode Pulse Width High (tEH) Encode Pulse Width Low (tEL) DIGITAL OUTPUTS Logic "1" Voltage (VDD +3 V) Logic "1" Voltage (VDD +5 V) Logic "0" Voltage (VDD +5 V) Output Coding POWER SUPPLY VD Supply Current (VD +5 V) VDD Supply Current (VDD +3 V)4Power Dissipation5, 6 Power-Down Dissipation Power Supply Rejection Ratio (PSRR)
NOTES 1 Gain error and gain temperature coefficient are based on the ADC only (with a fixed +2.5 V external reference). 2 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 a dc current ± 40 µA. 3 SNR/harmonics based on an analog input voltage of 0.5 dBFS referenced 1.0 V full-scale input range. 4 Digital supply current based +3 V output drive with <10 pF loading under dynamic test conditions. 5 Power dissipation is based on 60 MSPS encode and 10.3 MHz analog input dynamic test conditions ± 5%, VDD 5%). 6 Typical thermal impedance for the RS style (SSOP) 28-pin package: = 109°C/W. Specifications subject to change without notice.
Test Level 100% production tested. 100% production tested at +25°C and sample tested at specified temperatures. III Sample tested only. IV Parameter is guaranteed by design and characterization testing. V Parameter is a typical value only. 100% production tested at +25°C; guaranteed by design and characterization testing for industrial temperature range.
VD, VDD.+7 V Analog Inputs. 0.5 V Digital Inputs. 0.5 V VREF Input. 0.5 V Digital Output Current. 20 mA Operating Temperature. to +125°C Storage Temperature. 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.
CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high 4000 V 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 occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
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