AD7683BRMZ Datasheet, PDF (1/16 Pages) Analog Devices – 16-Bit, 100 kSPS, Single-Ended PulSAR ADC in MSOP/QFN

FEATURES
16-bit resolution with no missing codes
Throughput: 100 kSPS
INL: ±1 LSB typical, ±3 LSB maximum
Pseudo differential analog input range
0 V to VREF with VREF up to VDD
Single-supply operation: 2.7 V to 5.5 V
Serial interface SPI/QSPI/MICROWIRE/DSP compatible
Power dissipation: 4 mW @ 5 V, 1.5 mW @ 2.7 V,
150 μW @ 2.7 V/10 kSPS
Standby current: 1 nA
8-lead packages:
MSOP
3 mm × 3 mm QFN (LFCSP) (SOT-23 size)
Improved second source to ADS8320 and ADS8325
APPLICATIONS
Battery-powered equipment
Data acquisition
Instrumentation
Medical instruments
Process control
GENERAL DESCRIPTION
The AD7683 is a 16-bit, charge redistribution, successive
approximation, PulSAR® analog-to-digital converter (ADC)
that operates from a single power supply, VDD, between 2.7 V
and 5.5 V. It contains a low power, high speed, 16-bit sampling
ADC with no missing codes (B grade), an internal conversion
clock, and a serial, SPI-compatible interface port. The part also
contains a low noise, wide bandwidth, short aperture delay,
16-Bit, 100 kSPS, Single-Ended
PulSAR ADC in MSOP/QFN
AD7683
APPLICATION DIAGRAM
0.5V TO VDD 2.7V TO 5.5V
0V TO V_REF
REF
VDD
+IN
DCLOCK
–IN ^AD7683 DOUT
GND
CS
Figure 1.
3-WIRE SPI
INTERFACE
Table 1. MSOP, QFN (LFCSP)/SOT-23, 14-/16-/18-Bit
PulSAR ADC
Type
100
kSPS
250
kSPS
400 kSPS
to
≥1000
500 kSPS kSPS
ADC
Driver
18-Bit True
Differential
AD7691 AD7690 AD7982 ADA4941
AD7984 ADA4841
16-Bit True AD7684 AD7687 AD7688
Differential
AD7693
ADA4941
ADA4841
16-Bit Pseudo AD7680 AD7685 AD7686 AD7980 ADA4841
Differential AD7683 AD7694
14-Bit Pseudo AD7940 AD7942 AD7946
Differential
ADA4841
track-and-hold circuit. On the CS falling edge, it samples an
analog input, +IN, between 0 V to REF with respect to a ground
sense, –IN. The reference voltage, REF, is applied externally and
can be set up to the supply voltage. Its power scales linearly with
throughput.
The AD7683 is housed in an 8-lead MSOP or an 8-lead QFN
(LFCSP) package, with an operating temperature specified from
−40°C to +85°C.
Rev. A
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