CS5016 CS5014 CS5012A
Semiconductor Corporation
16, 14 & 12-Bit, Self-Calibrating A/D Converters
Features
General Description
The CS5012A/14/16 are 12, 14 and 16-bit monolithic
analog to digital converters with conversion times of
7.2µs, 14.25µs and 16.25µs. Unique self-calibration cir-
cuitry insures excellent linearity and differential non-
linearity, 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 select-
able.
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, in-
herent 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 kHz (CS5012A), 56 kHz (CS5014) and
50 kHz (CS5016).
An evaluation board (CDB5012/14/16) is available
which allows fast evaluation of ADC performance.
ORDERING INFORMATION:
Pages 2-45, 2-46, & 2-47
BP/UP RST
24
32
BW INTRLV CAL
33
34
35
EOT
37
EOC SCLK SDATA
38
39
40
•
Monolithic CMOS A/D Converters
Microprocessor Compatible
Parallel and Serial Output
Inherent Track/Hold Input
•
True 12, 14 and 16-Bit Precision
•
Conversion Times:
µs
CS5016 16.25
CS5014 14.25
µs
CS5012A 7.20
µs
Maintains Accuracy
•
Self Calibration Temperature
Over Time and
•
Low Power Dissipation:
•
Low Distortion
HOLD CS
1
21
RD
22
A0
23
150 mW
2
3
4
D0 (LSB) CS5016
D1
D2 (LSB) CS5014
D3
D4 (LSB) CS5012A
D5
D6
D7
D8
D9
D10
D11
CLKIN
20
CLOCK
GENERATOR
CONTROL
5
6
7
8
9
12
13
REFBUF
29
-
+
CALIBRATION
MEMORY
MICROCONTROLLER
VREF
28
AIN
26
-
+
CHARGE
REDISTRIBUTION
DAC
-
+
14
15
16
17
18
19
COMPARATOR
AGND
27
-
+
D12
D13
D14
D15 (MSB)
STATUS REGISTER
25
VA+
30
VA-
11
VD+
36
VD-
10
DGND
31
TST
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
(512) 445 7222 FAX: (512) 445 7581
Copyright
©
Crystal Semiconductor Corporation 1995
(All Rights Reserved)
MAR ’95
DS14F6
2-7
CIRRUS [ CIRRUS LOGIC ]
