Bandpass ⌺⌬ Modulator
Variable-Gain Preamplifier with 13 dB of AGC Range
Op Amp for LNA Biasing
ECL-to-CMOS Level Translator
Ultralow Power Design
2.7 V Operating Voltage
4.8 mA Current Consumption
Small 20-Lead SSOP Package
FLEX™, ReFLEX™ Receivers
Bandpass ⌺⌬ IF Subsystem
The AD6140 is a bandpass Σ∆ ADC IF IC for receivers requiring
a high dynamic range and multiple filter bandwidths. With an
external decimation filter, it creates a multibit analog-to-digital
converter. The AD6140 consists of a variable gain, low noise
preamplifier, mixer, AGC detector, bandpass Σ∆ modulator, an
ECL-to-CMOS level translator for the system clock, and an
auxiliary amplifier for use in biasing a discrete LNA. It is de-
signed to operate with Motorola’s ReFLEX chipset solution.
Contact Motorola directly for more information about the
ReFLEX chipset solution. With data and clock outputs at CMOS
logic levels, it interfaces to an external decimation filter. It comes in
a 20-lead plastic SSOP and operates over the –40°C to +85°C
industrial temperature range at 2.7 V.
FUNCTIONAL BLOCK DIAGRAM
AVDD AGND DGND DVDD POWER_DOWN
FLEX and ReFLEX are trademarks of Motorola, Inc.
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