MAX19710ETN+ Maxim Integrated Products, MAX19710ETN+ Datasheet - Page 22

• Manufacturer Part Number: MAX19710ETN+
• Description: IC ANLG FRONT END 7.5MSPS 56TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX19710ETN+

• Number Of Bits: 10
• Number Of Channels: 2
• Power (watts): 30mW
• Voltage - Supply, Analog: 3V
• Voltage - Supply, Digital: 3V
• Package / Case: 56-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10-Bit, 7.5Msps, Full-Duplex
Analog Front-End
In FAST Rx mode, the Tx DAC core is powered on. The
Tx DAC outputs are set to midscale. In this mode, the Tx
DAC input bus is disconnected from the DAC core and
DA0–DA9 are internally pulled to OV
digital bus is active and the ADC core is fully opera-
tional.
In FAST mode, the switching time from Tx to Rx, or Rx to
Tx is minimized because the converters are on and do
not have to recover from a power-down state. In FAST
mode, the switching time from Rx to Tx and Tx to Rx is
0.1µs. Power consumption is higher in FAST mode
because both Tx and Rx cores are always on.
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Table 5. MAX19710 Tx, Rx, and FD Control Using SPI Commands
A3
(16-Bit Mode)
______________________________________________________________________________________
______________________________________________________________________________________
(8-Bit Mode)
ADDRESS
A2
0000
1000
and
A1
A0
E2
0
1
1
1
1
DATA BITS
E1
1
0
0
1
1
E0
1
0
1
0
1
SPI1-Rx
SPI2-Tx
SPI3-Rx
SPI4-Tx
MODE
DD
FD
. The Rx ADC
(Tx-Rx SWITCHING SPEED)
FUNCTION
SLOW
SLOW
FAST
FAST
FAST
In SLOW Tx mode, the Rx ADC core is powered off and
the ADC digital outputs AD0–AD9 are tri-stated. The Tx
DAC digital bus is active and the DAC core is fully oper-
ational. In SLOW Rx mode, the Tx DAC core is powered
off. The Tx DAC outputs are set to 0. In SLOW Rx mode,
the Tx DAC input bus is disconnected from the DAC
core and DA0–DA9 are internally pulled to OV
Rx ADC digital bus is active and the ADC core is fully
operational. The switching times for SLOW modes are
5.2µs for Rx to Tx and 7.3µs for Tx to Rx.
Rx Mode:
Rx ADC = ON
Rx Bus = Enabled
Tx DAC = OFF
(Tx DAC outputs at 0V)
Tx Bus = OFF (all inputs
are pulled high)
Tx Mode:
Rx ADC = OFF
Rx Bus = Tri-state
Tx DAC = ON
Tx Bus = ON
Rx Mode:
Rx ADC = ON
Rx Bus = Enabled
Tx DAC = ON
(Tx DAC outputs at
midscale)
Tx Bus = OFF (all inputs
are pulled high)
Tx Mode:
Rx ADC = ON
Rx Bus = Tri-state
Tx DAC = ON
Tx Bus = ON
FD Mode:
Rx ADC = ON
Rx Bus = ON
Tx DAC = ON
Tx Bus = ON
DESCRIPTION
Fast transition to any
Slow transition to Rx
Slow transition to Tx
Fast transition to Rx
Fast transition to Tx
mode. Moderate
mode. Moderate
mode. Moderate
mode from this
mode from this
mode from this
mode from this
Default Mode
COMMENT
Low power.
Low power.
power.
power.
power.
mode.
mode.
DD
. The