AD7678 18-Bit,100 kSPS PulSAR® A/D Converter _ BDTIC a Leading Distributor in China

AD7678 18-Bit,100 kSPS PulSAR® A/D Converter

The AD7678 is an 18-bit, 100 kSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates on a single 5 V power supply. The part contains a high speed 18-bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports.

The part is available in 48-lead LQFP or 48-lead LFCSP packages with operation specified from –40°C to +85°C.

Features and Benefits

18-bit resolution with no missing codes

No pipeline delay (SAR architecture)

Differential input range: ±VREF (VREF up to 5 V)

Throughput: 100 kSPS

INL: ±2.5 LSB max (±9.5 ppm of full scale)

Dynamic range: 103 dB typ (VREF = 5 V)

S/(N+D): 100 dB typ @ 2 kHz (VREF = 5 V)

See data sheet for additional features

Analog to Digital Converters

A/D Converters

Data Sheets

Document	note
AD7678: 18-Bit, 2.5 LSB INL, 100 kSPS SAR ADC Data Sheet (Rev. A)	PDF 1160 kB

Application Notes

Document	note
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)	PDF 299 kB
AN-932: Power Supply Sequencing (Rev. 0)	PDF 95 kB

Product Highlight

Document	note
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog	PDF 1885 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD7678ACPZ Production	48 ld LFCSP 7x7mm (5.1EP)	OTH 260	-40 to 85C	25.47	22.73	Y
AD7678ASTZ Production	48 ld LQFP	OTH 250	-40 to 85C	25.47	22.73	Y
AD7678ASTZRL Production	48 ld LQFP	REEL 2000	-40 to 85C	0	22.73	Y