MAX11612EUA+ Maxim Integrated Products, MAX11612EUA+ Datasheet - Page 9

• Manufacturer Part Number: MAX11612EUA+
• Description: IC ADC SERIAL 12BIT 4CH 8-MSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX11612EUA+

• Number Of Bits: 12
• Sampling Rate (per Second): 94.4k
• Data Interface: I²C, Serial
• Number Of Converters: 1
• Power Dissipation (max): 362mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Resolution: 12 bit
• Interface Type: I2C
• Snr: 70 dB
• Voltage Reference: 4.096 V
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Power Dissipation: 470.6 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Input Voltage: 5 V
• Minimum Operating Temperature: - 40 C
• For Use With: MAXSPCSPARTAN6+ - ADC and DAC Eval Expansion Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 2. MAX11616/MAX11617 Simplified Functional Diagram
Figure 3. Load Circuit
The MAX11612–MAX11617 analog-to-digital converters
(ADCs) use successive-approximation conversion tech-
niques and fully differential input track/hold (T/H) cir-
cuitry to capture and convert an analog signal to a
serial 12-bit digital output. The MAX11612/MAX11613
are 4-channel ADCs, the MAX11614/MAX11615 are
8-channel ADCs, and the MAX11616/MAX11617 are
12-channel ADCs. These devices feature a high-speed,
SDA
_______________________________________________________________________________________
Detailed Description
V
DD
AIN11/REF
12-Bit ADCs in Ultra-Small Packages
I
I
AIN10
OL
OH
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
GND
SDA
SCL
V
DD
400pF
V
Low-Power, 4-/8-/12-Channel, I
OUT
CONFIGURATION REGISTER
ANALOG
INPUT
INPUT SHIFT REGISTER
MUX
SETUP REGISTER
REF
4.096V (MAX11616)
2.048V (MAX11617)
T/H
REFERENCE
12-BIT
2-wire serial interface supporting data rates up to
1.7MHz. Figure 2 shows the simplified internal structure
for the MAX11616/MAX11617.
The MAX11612–MAX11617 operate from a single sup-
ply and consume 670µA (typ) at sampling rates up to
94.4ksps. The MAX11613/MAX11615/MAX11617 fea-
ture a 2.048V internal reference and the MAX11612/
MAX11614/MAX11616 feature a 4.096V internal refer-
ence. All devices can be configured for use with an
external reference from 1V to V
The MAX11612–MAX11617 analog-input architecture
contains an analog-input multiplexer (mux), a fully dif-
ferential track-and-hold (T/H) capacitor, T/H switches, a
comparator, and a fully differential switched capacitive
digital-to-analog converter (DAC) (Figure 4).
In single-ended mode, the analog input multiplexer con-
nects C
CS[3:0] (see the Configuration/Setup Bytes (Write Cycle)
section) and GND (Table 3). In differential mode, the
analog-input multiplexer connects C
analog inputs selected by CS[3:0] (Table 4).
ADC
CONTROL
LOGIC
T/H
between the analog input selected by
MAX11616
MAX11617
OSCILLATOR
INTERNAL
OUTPUT SHIFT
Analog Input and Track/Hold
REGISTER
AND RAM
DD
.
T/H
Power Supply
to the + and -
2
C,
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