MAX1462 Datasheet, PDF (16/16 Pages) Maxim Integrated Products – Low-Voltage, Low-Power, 16-Bit Smart ADC

Low-Voltage, Low-Power,
16-Bit Smart ADC
C_F
1µF
V_DD
R1
500k
OUT
R_D1
10k
UNFILTERED
BIT STREAM
AGND
R_D2
10k
R_F
500k
AMP-
MAX1462
OP AMP
AMP+
AMPOUT _FILTERED
ANALOG
OUTPUT
Figure 8. Filtering the Output DAC
N.C. 1
N.C. 2
AGND 3
START 4
I.C. 5
D6 6
D7 7
D8 8
D9 9
D10 10
D11 11
N.C. 12
Pin Configuration
MAX1462
36 N.C.
35 AMP-
34 AMP+
33 AMPOUT
32 N.C.
31 N.C.
30 OUT
29 D5
28 D4
27 D3
26 D2
25 D1
Functional Diagram
V_DD
10k
AGND
10k
2MHz RESONATOR _XIN
X₁
MAX1462
OSCILLATOR
V_DD
XOUT
V_DD
C1
0.1µF
CS1 CS2 START TEST RESET SDIO SDO EOC AMP- AMP+
16-BIT INTERFACE TO ALL SIGNALS
CONTROL
LOGIC
TEMPERATURE
SENSOR
EEPROM
CONFIGURATION
REGISTER
CORRECTION
COEFFICIENTS
REGISTERS
OP
AMP
INSTRUCTION
ROM
REF = V_DD
DAC
16-BIT
DIGITAL SIGNAL
PROCESSOR
(DSP)
12-BIT DIGITAL OUTPUT
INP
PGA &
COARSE
OFFSET
CORRECTION
INM
REF = V_DD
16-BIT ADC
MUX
TEMPERATURE &
SENSOR SIGNAL
REGISTERS
AMPOUT
OUT
D [11...0]
V_SS
SENSOR
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