±2.5 V / 5 V, 50 kSps, 24-bit, High-throughput ∆Σ ADC
Features & Description
Differential Analog Input
On-chip Buffers for High Input Impedance
Conversion Time = 20 µS
Settles in One Conversion
www.DataSheet4U.cLoimnearity Error = 0.0007%
Signal-to-Noise = 110 dB
24 Bits, No Missing Codes
- Maintains accuracy over time & temperature.
Simple three/four-wire serial interface
Power Supply Configurations:
- Analog: +5V/GND; IO: +1.8V to +3.3V
- Analog: ±2.5V; IO: +1.8V to +3.3V
- ADC Input Buffers On: 85 mW
- ADC Input Buffers Off: 70 mW
The CS5560 is a single-channel, 24-bit analog-to-digital
converter capable of 50 kSps conversion rate. The input
accepts a fully differential analog input signal. On-chip
buffers provide high input impedance for both the AIN in-
puts and the VREF+ input. This significantly reduces the
drive requirements of signal sources and reduces errors
due to source impedances. The CS5560 is a delta-sigma
converter capable of switching multiple input channels at
a high rate with no loss in throughput. The ADC uses a
low-latency digital filter architecture. The filter is designed
for fast settling and settles to full accuracy in one conver-
sion. The converter's 24-bit data output is in serial form,
with the serial port acting as either a master or a slave. The
converter is designed to support bipolar, ground-refer-
enced signals when operated from ±2.5V analog supplies.
The CS5560 uses self-calibration to achieve low offset and
gain errors. The converter achieves a S/N of 110 dB. Lin-
earity is ±0.0007% of full scale.
The converter can operate from an analog supply of 0-5V
or from ±2.5V. The digital interface supports standard log-
ic operating from 1.8, 2.5, or 3.3 V.
See Ordering Information on page 32.
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