AD7693
AD7693 is 500 kSPS PulSAR Differential ADC manufactured by Analog Devices.
FEATURES
16-bit resolution with no missing codes Throughput: 500 k SPS INL/DNL: ±0.25 LSB typ, ±0.5 LSB max (±8 ppm of FSR) Dynamic range: 96.5 d B SINAD: 96 d B at 1 k Hz THD:
- 120 d B at 1 k Hz True differential analog input range: ±VREF
0 V to VREF with VREF up to VDD on both inputs No pipeline delay Single-supply 5 V operation with
1.8 V/2.5 V/3 V/5 V logic interface Proprietary serial interface
SPI®-/QSPI™-/MICROWIRE™-/DSP-patible1 Daisy-chain multiple ADCs, selectable busy indicator Power dissipation: 40 n J/conversion
40 μW at 5 V/1 k SPS 4 m W at 5 V/100 k SPS 18 m W at 5 V/500 k SPS Standby current: 1 n A 10-lead package: MSOP (MSOP-8 size) Pin-for-pin patible with the 16-bit AD7687 and AD7688 and the 18-bit AD7690 and AD7691
APPLICATIONS
Battery-powered equipment Data acquisitions Seismic data acquisition systems DVMs Instrumentation Medical instruments
POSITIVE INL = +0.17LSB
NEGATIVE INL =
- 0.17LSB
- 0.2
- 0.4
- 0.6
- 0.8
- 1.0 0
CODE
Figure 1. Integral Nonlinearity vs. Code
INL (LSB)
06394-001
APPLICATION DIAGRAM
+2.5V TO +5V +5V
±10V, ±5V, ... ADA4941-1
REF VDD VIO
IN+
AD7693 SCK
IN- GND
SDO...
