Features: Throughput: 100 kSPS
INL: ±1.5 LSB Max (±0.0015% of Full Scale)
16 Bits Resolution with No Missing Codes
S/(N+D): 94 dB Typ @ 45 kHz
THD: 110 dB Typ @ 45 kHz
Differential Input Range: 2.5 V
Both AC and DC Specifications
No Pipeline Delay
Parallel (8 Bits/16 Bits) and Serial 5 V/3 V Interface
SPI™/QSPI™/MICROWIRE™/DSP Compatible
Single 5 V Supply Operation
15 mW Typical Power Dissipation, 15 W @ 100 SPS
Power-Down Mode: 7W Max
Packages: 48-Lead Quad Flatpack (LQFP),
46-Lead Frame Chip Scale (LFCSP)
Pin-to-Pin Compatible with the AD7660
Replacement of AD676, AD677ApplicationCT Scanners
Data Acquisition
Instrumentation
Spectrum Analysis
Medical Instruments
Battery-Powered Systems
Process ControlPinout
SpecificationsAnalog Inputs
IN+2, IN2, REF, REFGND . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . AVDD + 0.3 V to AGND 0.3 V
Ground Voltage Differences
AGND, DGND, OGND . . . . . . . . . . . . . . . . . . . . ±0.3 V
Supply Voltages
AVDD, DVDD, OVDD . . . . . . . . . . . . . . . 0.3 V to +7 V
AVDD to DVDD, AVDD to OVDD . . . . . . . . . . . . . . ±7 V
DVDD to OVDD . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
Digital Inputs . . . . . . . . . . . . . . 0.3 V to DVDD + 0.3 V
Internal Power Dissipation3 . . . . . . . . . . . . . . 700 mW
Internal Power Dissipation4 . . . . . . . . . . .. . . . . . 2.5 W
Junction Temperature . . . . . . . . . . . . . . . . . . . . 150° C
Storage Temperature Range . . . . . . . 65°C to +150°C
Lead Temperature Range
(Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . 300°C
NOTES
1Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
2See Analog Input section.
3Specification is for device in free air: 48-Lead LQFP: JA = 91°C/W, JC = 30°C/W.
4Specification is for device in free air: LFCSP: JA = 26°C/W
DescriptionThe AD7675 is a 16-bit, 100 kSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates from a single 5 V power supply. The part contains a high speed 16-bit sampling ADC, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.
The AD7675 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.
AD7675 is fabricated using Analog Devices' high performance, 0.6 micron CMOS process and is available in a 48-lead LQFP or a tiny 48-lead LFCSP with operation specified from 40°C to +85°C.
AD7675 Data Sheet
