CS5510 Datasheet, PDF (1/24 Pages) Cirrus Logic – 16-bit and 20-bit, 8-pin Sigma-Delta ADC

CS5510/11/12/13
16-bit and 20-bit, 8-pin ∆Σ ADC
Features
z Delta-sigma Analog-to-digital Converter
– Linearity Error: 0.0015% FS
– Noise-free Resolution: Up to 17 Bits
z Differential Bipolar Analog Inputs
z V_REF Input Range from 250 mV to 5 V
z 50/60 Hz Simultaneous Rejection
(CS5510/12)
z 16 to 326 Sps Output Word Rate
z On-chip Oscillator (CS5511/13)
z Power Supply Configurations:
– V+ = 5 V, V- = 0 V
– Multiple Dual-supply Arrangements
z Low Power Consumption
– Normal Mode, 2.5 mW
– Sleep Mode, 10 µW
z Low-cost, Compact, 8-pin Package
z Lead-free Device Package Options
General Description
The CS5510/11/12/13 are low-cost, easy-to-use, ∆Σ an-
alog-to-digital converters (ADCs) which use charge-
balance techniques to achieve 16-bit (CS5510/11) and
20-bit (CS5512/13) performance. The ADCs are avail-
able in a space-efficient, 8-pin SOIC package and are
optimized for measuring signals in weigh scale, process
control, and other industrial applications.
To accommodate these applications, the ADCs include
a fourth-order ∆Σ modulator and a digital filter. When
configured with an external master clock of 32.768 kHz,
the filter in the CS5510/12 provides better than 80 dB of
simultaneous 50 and 60 Hz line rejection, and outputs
conversion words at 53.5 Sps. The CS5511/13 include
an on-chip oscillator which eliminates the need for an ex-
ternal clock source.
Low-power, flexible supply configurations, compact pi-
nout, and ease of use make these products ideal
solutions for cost-conscience and space-constrained
applications.
ORDERING INFORMATION
See page 23.
AIN+
AIN-
VREF
1X
~0.8X
http://www.cirrus.com
V+
Differential
4th-order
Delta-sigma
Modulator
Digital Filter
Output
Control
Logic
CS
SDO
SCLK
Oscillator
(CS5511/13 only)
Clock
Gen.
(CS5510/12 only)
V-
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
AUG ‘05
DS337F3