(Hong Kong)
Product Summary
The AD7346ASTZ is a six-input channel analog front-end processor for general-purpose applications including industrial power metering or multichannel analog inputs. It features six 16-bit A/D conversion channels, each of which provides 72 dB signal-to-noise ratio over a dc-to-2 kHz signal bandwidth. Each channel also features a programmable input gain amplifier (PGA) with gain settings in eight stages from 0 dB to 38 dB. The AD7346ASTZ integrates 40K bytes of on-chip memory configured as 8K words (24-bit) of program RAM and 8K (16-bit) of data RAM. Power-down circuitry is also provided to meet the low power needs of battery-operated portable equipment. The AD7346ASTZ is available in a 119-ball PBGA package.
Parametrics
AD7346ASTZ absolute maximum ratings: (1)AVDD, DVDD to GND: –0.3 V to +4.6 V; (2)AGND to DGND: –0.3 V to +0.3 V; (3)Digital I/O Voltage to DGND: –0.3 V to DVDD + 0.3 V; (4)Analog I/O Voltage to AGND: –0.3 V to AVDD + 0.3 V; (5)Operating Temperature Range Industrial (B Version): –20°C to +85°C; (6)Storage Temperature Range: –20°C to +125°C; (7)Maximum Junction Temperature: 150°C; (8)PBGA, θJA Thermal Impedance: 25°C/W; (9)Maximum Temperature: 225°C; (10)Time at Maximum Temperature: 15 sec.
Features
AD7346ASTZ features: (1)AFE PERFORMANCE; (2)Six 16-Bit A/D Converters; (3)Programmable Input Sample Rate; (4)Simultaneous Sampling; (5)72 dB SNR; (6)64 kS/s Maximum Sample Rate; (7)–80 dB Crosstalk; (8)Low Group Delay (25 s Typ per ADC Channel); (9)Programmable Input Gain; (10)Single Supply Operation; (11)On-Chip Reference.
Diagrams
