MAX1428

♦  80Msps Minimum Sampling Rate
♦  -78.4dBFS Noise Floor
♦  Excellent Dynamic Performance 73.9dB SNR at f_IN = 70MHz and A_IN = -2dBFS 83dBc/91dBc Single-Tone SFDR1/SFDR2 at f_IN = 70MHz and A_IN = -2dBFS -    82dB Multitone SFDR at f_IN1 = 69MHz and f_IN2 = 71MHz
♦  Less than 0.25ps Sampling Jitter
♦  Fully Differential Analog Input Voltage Range of 2.56V_P-P
♦  CMOS-Compatible Two's-Complement Data Output
♦  Separate Data Valid Clock and Overrange Outputs
♦ Flexible-Input Clock Buffer
♦ EV Kit Available for MAX1428 (Order MAX1427EVKIT)

AV_CC, DV_CC, DRV_CC to GND.................................. ..-0.3V to +6V
INP, INN, CLKP, CLKN, CM to GND............-0.3V to (AVCC + 0.3V)
D0D14, DAV, DOR to GND.....................-0.3V to (DRVCC + 0.3V)
Continuous Power Dissipation (T_A = +70°C)
56-Pin Thin QFN (derate 47.6mW/°C above +70°C) ...3809.5mW
Operating Temperature Range ............................-40°C to +85°C
Thermal Resistance J_A.....................................................21°C/W
Junction Temperature.......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) ..................................+300°C

The MAX1428 is a 5V, high-speed, high-performance analog-to-digital converter (ADC) featuring a fully differential wideband track-and-hold (T/H) and a 15-bit converter core. It is optimized for multichannel, multimode receivers, which require the ADC to meet very stringent dynamic performance requirements. With a noise floor of -78.4dBFS, the device allows for the design of receivers with superior sensitivity.

The MAX1428 achieves two-tone, spurious-free dynamic range (SFDR) of -82dBc for input tones of 69MHz and 71MHz. Its excellent signal-to-noise ratio (SNR) of 73.9dB and single-tone SFDR performance (SFDR1/SFDR2) of 83dBc/91dBc at f_IN = 70MHz and a sampling rate of 80Msps make this part ideal for high-performance digital receivers.

The MAX1428 operates from an analog 5V and a digital 3V supply, features a 2.56V_P-P full-scale input range, and allows for a sampling speed of up to 80Msps. The input T/H operates with a -1dB full-power bandwidth of 260MHz.

The MAX1428 features parallel, CMOS-compatible outputs in two's-complement format. To enable the interface with a wide range of logic devices, this ADC provides a separate output driver power-supply range of 2.3V to 3.5V. The device is manufactured in an 8mm x 8mm, 56-pin thin QFN package with exposed paddle (EP) for low thermal resistance, and is specified for the extended industrial (-40°C to +85°C) temperature range.

Note that IF parts MAX1418, MAX1428, and MAX1430 (see Pin-Compatible Higher/Lower Speed Versions Selection table) are recommended for applications that require high dynamic performance for input frequencies greater than f_CLK/3. Unlike its baseband counterpart MAX1427, the MAX1428 is optimized for input frequencies greater than f_CLK/3.