ADS-117 Ver la hoja de datos (PDF) - Murata Power Solutions
Número de pieza
componentes Descripción
Fabricante
ADS-117 Datasheet PDF : 6 Pages
| |||
www.murata-ps.com
ADS-117
12-Bit, 2MHz, Low-Power Sampling A/D Converters
FEATURES
12-bit resolution
No missing codes
2MHz minimum throughput
Functionally complete
Small 24-pin DDIP
Low-power, 1.6 Watts
Three-state output buffers
Samples to Nyquist frequencies
BLOCK DIAGRAM
PRODUCT OVERVIEW
DATEL's ADS-117 is a functionally complete,
12-bit, 2MHz, sampling A/D converter. Its stan-
dard, 24-pin, double-width DIP contains a fast-
settling sample-hold amplifier, a 12-bit subranging
(two-step) A/D converter, a precision reference,
three-state output register and all the timing and
control logic necessary to operate from a single
start convert pulse. Digital input and output levels
are TTL.
Total harmonic distortion (THD) and signal-
to-noise ratio (including distortion) typically run
–78dB and 70dB, respectively, with full scale
inputs up to 100kHz. The ADS-117 requires ±15V
and +5V power supplies and typically consumes
1.6 Watts. Models are available for use in either
commercial (0 to +70°C) or military (–55 to
+125°C) operating temperature ranges and
extended commerical (–40 to +85°C).
INPUT/OUTPUT CONNECTIONS
PIN FUNCTION
PIN FUNCTION
1 BIT 12 (LSB)
24 –15V Supply
2 BIT 11
23 ANALOG GROUND
3 BIT 10
22 +15V SUPPLY
4 BIT 9
21 +10V REFERENCE
5 BIT 8
20 BIPOLAR
6 BIT 7
19 ANALOG INPUT
7 BIT 6
18 COMP BIN
8 BIT 5
17 ENABLE (1-12)
9 BIT 4
16 START CONVERT
10 BIT 3
15 EOC
11 BIT 2
14 DIGITAL GROUND
12 BIT 1 (MSB)
13 +5V SUPPLY
+10V REF. 21
BIPOLAR 20
ANALOG INPUT 19
REF
S2
FLASH
S/H
ADC
S1
BUFFER
–
+
DAC
17 ENABLE (1-12)
12 BIT 1 (MSB)
11 BIT 2
10 BIT 3
9 BIT 4
8 BIT 5
7 BIT 6
6 BIT 7
5 BIT 8
4 BIT 9
3 BIT 10
2 BIT 11
1 BIT 12 (LSB)
COMP BIN 18
START CONVERT 16
EOC 15
TIMING AND
CONTROL LOGIC
13
+5V SUPPLY
For full details go to
www.murata-ps.com/rohs
14
DIGITAL GROUND
22
+15V SUPPLY
23
ANALOG GROUND
Figure 1. ADS-117 Functional Block Diagram
24
–15V SUPPLY
www.murata-ps.com
Technical enquiries email: data.acquisition@murata-ps.com, tel: +1 508 339 3000
MDA_ADS-117.B01 Page 1 of 6
Share Link: 