MAX115 Maxim, MAX115 Datasheet
MAX115
Manufacturer Part Number
MAX115
Description
2x4-Channel / Simultaneous-Sampling 12-Bit ADCs
Manufacturer
Maxim
Datasheet
1.MAX115.pdf
(14 pages)
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________________General Description
The MAX115/MAX116 are high-speed, multichannel,
12-bit data-acquisition systems (DAS) with simultane-
ous track/holds (T/Hs). These devices contain a 12-bit,
2µs, successive-approximation analog-to-digital con-
verter (ADC), a +2.5V reference, a buffered reference
input, and a bank of four simultaneous-sampling T/H
amplifiers that preserve the relative phase information
of the sampled inputs. The MAX115/MAX116 have two
multiplexed inputs for each T/H, allowing a total of eight
inputs. In addition, the converter is overvoltage tolerant
to ±17V. A fault condition on any channel will not dam-
age the IC. Available input ranges are ±5V (MAX115)
and ±2.5V (MAX116).
The parallel interface’s data access and bus release
timing specifications are compatible with most popular
digital signal processors and 16-bit/32-bit microproces-
sors. The MAX115/MAX116 conversion results can be
accessed without resorting to wait-states.
________________________Applications
19-1928; Rev 0; 1/01
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
TOP VIEW
Multiphase Motor Control
Power-Grid Synchronization
Power-Factor Monitoring
Digital Signal Processing
Vibration and Waveform Analysis
D11 (MSB)
REFOUT
DGND
REFIN
AGND
CH2B
CH2A
CH1B
CH1A
DV
AV
D10
DD
D9
D8
D7
D6
D5
D4
DD
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
________________________________________________________________ Maxim Integrated Products
MAX115
MAX116
SSOP
2x4-Channel, Simultaneous-Sampling
Pin Configuration
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
AGND
CH3B
CH3A
CH4B
CH4A
AV
INT
CONVST
RD
WR
CS
CLK
A0
A1
D0/A2 (LSB)
D1/A3
D2
D3
SS
o Four Simultaneous-Sampling T/H Amplifiers with
o 2µs Conversion Time per Channel
o Throughput: 390ksps (1 Channel)
o Input Range: ± 5V (MAX115)
o Fault-Protected Input Multiplexer (±17V)
o Internal +2.5V or External Reference Operation
o Programmable On-Board Sequencer
o High-Speed Parallel DSP Interface
o Internal 10MHz Clock
____________________________Features
MAX115CAX
MAX115EAX
MAX116CAX
MAX116EAX
Two Multiplexed Inputs (Eight Single-Ended
Inputs Total)
PART
0.1µF
0.1µF
0.1µF
4.7µF
+5V
-5V
16MHz
Typical Operating Circuit
218ksps (2 Channels)
152ksps (3 Channels)
116ksps (4 Channels)
± 2.5V (MAX116)
AV
AGND
AV
REFIN
REFOUT
CLK
CH1A
CH1B
CH2A
CH2B
CH3A
CH3B
CH4A
CH4B
-40°C to +85°C
-40°C to +85°C
DD
SS
TEMP. RANGE
0°C to +70°C
0°C to +70°C
Ordering Information
CONVST
CONTROL INTERFACE
12-Bit ADCs
MAX115
MAX116
INT
CS
RD
D0/A2
D1/A3
WR
DGND
DV
D10
D11
PIN-PACKAGE
36 SSOP
36 SSOP
36 SSOP
36 SSOP
D2
D3
D4
D5
D6
D7
D8
D9
DD
A0
A1
+5V
0.1µF
1
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