Product Summary

The cs5451-bs is a highly integrated Delta-Sigma Analog- to-Digital Converter (ADC) developed for the Power Measurement Industry. The cs5451-bs combines six ADCs, decimation filters, and a serial interface on a single chip. The cs5451-bs interfaces directly to a current transformer or shunt to measure current, and resistive divider or transformer to measure voltage. The product features a serial interface for communication with a micro- controller or DSP. The product is initialized and fully functional upon reset, and includes a Voltage Reference.

Parametrics

cs5451-bs absolute maximum ratings: (1)Input Current, Any Pin Except Supplies (Note 9 and 10)IIN: ±10 mA; (2)Output Current IOUT: ±25 mA; (3)Power Dissipation (Note 11)PDN: 500 mW; (4)Analog Input Voltage All Analog Pins VINA VA: - 0.3 - (VA+)+ 0.3 V; (5)Digital Input Voltage All Digital Pins VIND: -0.3 - (VD+)+ 0.3 V; (6)Ambient Operating Temperature TA: -40 to 85 °C; (7)Storage Temperature Tstg: -65 to 150 °C.

Features

cs5451-bs features: (1)Conforms to TIA/EIA-232-E and CCITT V.28 specifications; (2)Operates with single +3.3V power supply; (3)Low power requirement—ICC 20 mA maximum; (4)SHUTDOWN mode—ICX 10 μA maximum; (5)One Receiver (R5)active during SHUTDOWN; (6)Operates up to 128 kbps—Lap-Link Compatible; (7)Flow through pinout; (8)4V/μs minimum Slew Rate guaranteed; (9)Inter-operates with +5V UARTs; (10)Available i28-lead SSOP EIAJ Type II package.

Diagrams

cs5451-bs pin connection