DS8102+ Maxim Integrated Products, DS8102+ Datasheet - Page 5

• Manufacturer Part Number: DS8102+
• Description: IC MODULATOR/DECODER 16-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: Modulatorr

Specifications of DS8102+

• Applications: Energy Measurement
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Duty Cycle (max): 40 % to 60 %
• Input Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Output Voltage: 0.4 V
• Supply Current: 3.5 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 90-08102+XPX

The DS8102 has two operating modes: shutdown (or
power-down) mode and active mode.
In shutdown mode, the DS8102 is in an inactive state
and consumes a minimal amount of current. No analog-
to-digital conversion or encoding is performed, and the
internal 8MHz oscillator and internal voltage reference
are disabled.
An integrated power-supply monitor holds the DS8102
in shutdown mode whenever V
the RST pin can be driven low by an external compan-
ion microcontroller (such as the MAXQ3108) to force the
DS8102 to remain in shutdown mode, regardless of the
supply level at V
urations (when a power supply is shared between the
DS8102 and the companion microcontroller) to reduce
the current consumption of the entire system. In this
scenario, the companion microcontroller would perform
this sequence of actions when entering stop mode:
Dual Delta-Sigma Modulator and Encoder
DD
_______________________________________________________________________________________
. This is useful in nonisolated config-
AN1+
AN0+
AN1-
AN0-
V
REF
G1
G0
Detailed Description
DD
Operating Modes
REFERENCE
INTERNAL
≤ V
Shutdown Mode
RST
16x, 32x
. Additionally,
1x, 4x,
REFERENCE
1x
APDREF
BUFFER
DELTA-SIGMA MODULATOR
DELTA-SIGMA MODULATOR
INTEGRATORS/
INTEGRATORS/
COMPARATOR
COMPARATOR
AGND
1) Drive the RST line on the DS8102 low to force the
2) Enter stop mode. Both the companion microcon-
3) Exit stop mode.
4) Drive the RST line on the DS8102 high to return the
Note: The RST line on the DS8102 does not include
a pullup. This means that if the RST line is not dri-
ven by a companion microcontroller, RST must be
connected to V
be left unconnected.
While the DS8102 is in shutdown mode, the levels on
the configuration input pins (APDREF, CLKSEL, G1,
and G0) can be changed if they are being driven by a
companion microcontroller instead of hardwired to V
or DGND. However, once the DS8102 enters active
mode, the levels on these pins must remain static for
proper operation.
DGND
DS8102 into shutdown mode.
troller and the DS8102 are now in their lowest cur-
rent consumption modes.
DS8102 to active mode.
RST
DS8102
MANCHESTER
OSCILLATOR
ENCODER
MONITOR
POWER
8MHz
V
DD
DD
for proper operation. RST cannot
Functional Diagram
CLKSEL
CLKIO
MNOUT
DD
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