AD7660*

Features:

Throughput: 100 kSPS
INL: ±3 LSB Max (±0.0046% of Full-Scale)
16 Bits Resolution with No Missing Codes
S/(N+D): 87 dB Min, 90 dB Typ @ 10 kHz
THD: 96 dB Max @ 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
Single 5 V Supply Operation
21 mW Typical Power Dissipation, 21 W @ 100 SPS
Power-Down Mode: 7 W Max
Package: 48-Lead Quad Flatpack (LQFP)
Pin-to-Pin Compatible with the AD7664


Application

Data Acquisition
Battery-Powered Systems
PCMCIA
Instrumentation
Automatic Test Equipment
Scanners
Medical Instruments
Process Control


Pinout




Specifications

Analog Inputs
IN², REF . . . . . . . . . .. . .  . AVDD + 0.3 V to AGND 0.3 V
INGND, REFGND . . . . . . . . . . . . . . . .. . .  . . AGND ± 0.3 V
Ground Voltage Differences
AGND, DGND, OGND . . . . . . . . . . . . . .. . .  . . . .. . . ±0.3 V
Supply Voltages
AVDD, DVDD, OVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
AVDD to DVDD, AVDD to OVDD . . . . . . . . . . . . . . . . . ±7 V
DVDD to OVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±7 V
Digital Inputs
Except the Data Bus D(7:4) . . . 0.3 V to DVDD + 0.3 V
Data Bus Inputs D(7:4) . . . . . . 0.3 V to OVDD + 0.3 V
Internal Power Dissipation3 . . . . . . . . . . . . . . . . . . 700 mW
Junction Temperature . . . . . . . . . . . . .. . . . . . . . . . . 150°C
Storage Temperature Range . . . . . . . .  65°C to +150°C
Lead Temperature Range
(Soldering 10 sec) . . . . . . . . . . . .  . . . . . . . . . . . 300°C




Description

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 such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.
AD7660 is fabricated using Analog Devices' high-performance, 0.6 micron CMOS process with correspondingly low cost, and is available in a 48-lead LQFP with operation specified from 40°C to +85°C.