AD9627-125EBZ Analog Devices Inc, AD9627-125EBZ Datasheet - Page 4

• Manufacturer Part Number: AD9627-125EBZ
• Description: 12Bit 125 Msps Dual 1.8V PB Free ADC
• Manufacturer: Analog Devices Inc

Specifications of AD9627-125EBZ

• Number Of Adc's: 2
• Number Of Bits: 12
• Sampling Rate (per Second): 125M
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: 2 Vpp
• Power (typ) @ Conditions: 900mW @ 125MSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9627
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9627
GENERAL DESCRIPTION
The AD9627 is a dual, 12-bit, 80 MSPS/105 MSPS/125 MSPS/
150 MSPS analog-to-digital converter (ADC). The AD9627 is
designed to support communications applications where low
cost, small size, and versatility are desired.
The dual ADC core features a multistage, differential pipelined
architecture with integrated output error correction logic. Each
ADC features wide bandwidth differential sample-and-hold
analog input amplifiers supporting a variety of user-selectable
input ranges. An integrated voltage reference eases design consid-
erations. A duty cycle stabilizer is provided to compensate for
variations in the ADC clock duty cycle, allowing the converters
to maintain excellent performance.
The AD9627 has several functions that simplify the automatic
gain control (AGC) function in the system receiver. The fast detect
feature allows fast overrange detection by outputting four bits of
input level information with very short latency.
In addition, the programmable threshold detector allows moni-
toring of the incoming signal power, using the four fast detect
bits of the ADC with very low latency. If the input signal level
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exceeds the programmable threshold, the coarse upper threshold
indicator goes high. Because this threshold indicator has very
low latency, the user can quickly turn down the system gain to
avoid an overrange condition.
The second AGC-related function is the signal monitor. This block
allows the user to monitor the composite magnitude of the
incoming signal, which aids in setting the gain to optimize the
dynamic range of the overall system.
The ADC output data can be routed directly to the two external
12-bit output ports. These outputs can be set from 1.8 V to 3.3 V
CMOS or 1.8 V LVDS.
Flexible power-down options allow significant power savings,
when desired.
Programming for setup and control is accomplished using a 3-bit
SPI-compatible serial interface.
The AD9627 is available in a 64-lead LFCSP and is specified over
the industrial temperature range of −40°C to +85°C.