CS5012A CS5014 CS5016
16-, 14-, & 12-bit Self-calibrating A/D Converters
Features
Description
Monolithic CMOS A/D Converters
The CS5012A/14/16 are 12-, 14-, and 16-bit monolithic analog to digital converters with conversion
times of 7.2 µs, 14.25 µs and 16.25 µs. Unique selfcalibration circuitry ensures excellent linearity and
differential nonlinearity, with no missing codes. Offset and full-scale errors are kept within 1/2 LSB
(CS5012A/14) and 1 LSB (CS5016), eliminating the
need for calibration. Unipolar and bipolar input
ranges are digitally selectable.
– Microprocessor Compatible
– Parallel & Serial Output
– Inherent Track/Hold Input
True 12-bit, 14-bit, and 16-bit Precision
Conversion Times
– CS5016: 16.25 µs
– CS5014: 14.25 µs
– CS5012A: 7.20 µs
The pin compatible CS5012A/14/16 consist of a
DAC, conversion and calibration microcontroller,
oscillator, comparator, microprocessor-compatible
3-state I/O, and calibration circuitry. The input
track-and-hold, inherent to the devices’ sampling
architecture, acquires the input signal after each
conversion using a fast-slewing, on-chip buffer amplifier. This allows throughput rates up to
100 kSps(CS5012A), 56 kSps (CS5014), and
50 kSps (CS5016).
Linearity Error: ±0.001% FS
– Guaranteed No Missing Codes
Self-calibration Maintains Accuracy
– Accurate Over Time & Temperature
Low Power Consumption
– 150 mW
ORDERING INFORMATION
Low Distortion
See “Ordering Information” on page39.
I
HOLD CS
1
CLKIN
REFBUF
VREF
AIN
AGND
23
RD
24
25
A0 BP/UP RST BW INTRLV CAL
26
27
Clock
Generator
+
30
38
39
Calibration
Memory
+
29
37
VA+
http://www.cirrus.com
42
43
44
Microcontroller
+
28
41
Control
32
31
36
EOT EOC SCLK SDATA
Charge
Redistribution
DAC
+
Comparator
Status Register
34
VA-
12
VD+
40
VD-
11
DGND
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
35
2
3
4
5
6
7
8
10
14
16
17
18
19
20
21
22
D0 (LSB) CS5016
D1
D2 (LSB) CS5014
D3
D4 (LSB) CS5012A
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15 (MSB)
TST
AUG ‘05
DS14F9
