Features: Throughput
1 MSPS (Warp Mode)
800 kSPS (Normal Mode)
INL: ±2.5 LSB Max (±0.0038% of Full Scale)
16-Bit Resolution with No Missing Codes
S/(N+D): 90 dB Typ @ 250 kHz
THD: 100 dB Typ @ 250 kHz
Analog Input Voltage Ranges
Bipolar: ±10 V,±5 V, ±2.5 V
Unipolar: 0 V to 10 V, 0 V to 5 V, 0 V to 2.5 V
Both AC and DC Specifications
No Pipeline Delay
Parallel (8/16 Bits) and Serial 5 V/3 V Interface
SPI®/QSPI™/MICROWIRE™/DSP Compatible
Single 5 V Supply Operation
Power Dissipation
112 mW Typical
15 W @ 100 SPS
Power-Down Mode: 7 W Max
Package: 48-Lead Quad Flatpack (LQFP)
Package: 48-Lead Chip Scale (LFCSP)
Pin-to-Pin Compatible Upgrade of the AD7665/AD7664ApplicationData Acquisition
Communication
Instrumentation
Spectrum Analysis
Medical Instruments
Process ControlPinout
Specificationsalog Inputs
IND2, INC2, INB2 . . . . . . . . . . . . . . . . . 11 V to +30 V
INA, REF, INGND, REFGND, AGND
. . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to AVDD + 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 . . . . . . . . . . . . . . . . . . . . . 150oC
Storage Temperature Range . . . . . . . 65oC to +150oC
Lead Temperature Range
(Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . 300oC
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.
2 See Analog Inputs section.
3 Specification is for device in free air: 48-Lead LQFP: JA = 91oC/W, JC = 30oC/W.
4 Specification is for device in free air: 48-Lead LFCSP: JA = 26oC/W.
| Resolution (Bits) |
16bit |
| T-Put Rate |
1MSPS |
| # Chan |
1 |
| Supply V |
Single(+5) |
| Pwr Diss (max) |
125mW |
| Interface |
Par,Ser,SPI |
| Ain Range |
Bip (Vref),Bip (Vref) x 2,Bip (Vref) x 4,Uni (Vref),Uni (Vref) x 2,Uni (Vref) x 4 |
| SNR (dB) |
90dB |
| Pkg Type |
CSP,QFP |
DescriptionThe AD7671 is a 16-bit, 1 MSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. It contains a high speed 16-bit sampling ADC, a resistor input scaler that allows various input ranges, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.
The AD7671 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.
AD7671 features a very high sampling rate mode (Warp), a fast mode (Normal) for asynchronous conversion rate applications, and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput.
AD7671 Data Sheet
