AD7660 16-Bit 100 kSPS CMOS Successive Approximation PulSAR® ADC with No Missing Codes

Fast throughput The AD7660 is a 100 kSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry. Superior INL The AD7660 has a maximum integral nonlinearity of 3 LSBs with no missing 16-bit code. Single-supply operation The AD7660 operates from a single 5 V supply and only dissipates 21 µW typical. Its power dissipation decreases with the throughput to, for instance, only 21 µW at a 100 SPS throughput. It consumes 7 µW maximum when in power-down. Serial or parallel interface Versatile parallel or 2-wire serial interface arrangement compatible with both 3 V or 5 V logic.

The AD7660 is a 16-bit, 100 kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.

The AD7660 is hardware factory-calibrated and is comprehensively tested to ensure ac parameters such as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.

It is fabricated using Analog Devices’ high performance, 0.6 micron CMOS process with correspondingly low cost and is available in a 48-lead LQFP and a tiny 48-lead LFCSP with operation specified from –40°C to +85°C.

Product Highlights

Applications

Features and Benefits

Throughput: 100 kSPS
INL: 3 LSB max (0.0046% of full-scale)
16-bit resolution with no missing codes
S/(N+D): 87 dB min at 10 kHz, 90 dB typ at 45 kHz
THD: –96 dB max at 10 kHz
Analog input voltage range: 0 V to 2.5 V
Both AC and DC specifications
No pipeline delay

Parallel and serial 5 V/3 V interface: SPI^®/QSPI™/
MICROWIRE™/ DSP compatible
Single 5 V supply operation
21 mW typical power dissipation, 21 W at 100 SPS
Power-down mode: 7 µW max
Package: 48-lead quad flatpack (LQFP)
48-Lead chip scale package (LFCSP)
Pin-to-pin compatible with the AD7664

Analog to Digital Converters

A/D Converters

Data Sheets

Document	note
AD7660: 16-Bit, 100 kSPS PulSAR® Unipolar CMOS ADC Data Sheet (Rev. E)	PDF 388.36 K

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
AD7660ACPZRL Last Time Buy	48 ld LFCSP (7x7x.85mm w/5.1mm Pad)	REEL 2500	-40 to 85C	0	8	Y
AD7660ASTZ Production	48 ld LQFP	OTH 250	-40 to 85C	9.51	8.6	Y
AD7660ASTZRL Production	48 ld LQFP	REEL 2000	-40 to 85C	0	8.6	Y