MAX11014BGTM+ Maxim Integrated, MAX11014BGTM+ Datasheet - Page 40

• Manufacturer Part Number: MAX11014BGTM+
• Description: Special Purpose Amplifiers Auto RF MESFET Amp Drain-Current Cntrlr
• Manufacturer: Maxim Integrated
• Series: MAX11014, MAX11015r

Specifications of MAX11014BGTM+

• Rohs: yes
• Common Mode Rejection Ratio (min): 90 dB
• Operating Supply Voltage: 0.5 V to 11 V
• Supply Current: 2.8 mA
• Maximum Power Dissipation: 2162.2 mW
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-48
• Available Set Gain: 13.98 dB

Automatic RF MESFET Amplifier
Drain-Current Controllers
The hardware ALARM configuration register controls
the active states of the ALARM output. Set the com-
mand byte to 3Ch to write to the hardware ALARM con-
figuration register. Set the command byte to BCh to
read the hardware ALARM configuration register. Bits
D15–D12 are don’t care. Set the INTEMP bit, D11, to 1
to cause ALARM comparisons for channel 2 to use the
internal temperature conversion result. Set the
ALMCMP bit, D10, to 1 to set the ALARM output in
comparator mode. Set ALMCMP to 0 to set the ALARM
output in interrupt mode. See Figure 25.
When operating in windowing mode, set the
VGHYST1/0 bits, D9 and D8, to control the GATE_ volt-
age ALARM hysteresis level. This hysteresis level
applies to both channel 1 and channel 2. See Table
12a and Figure 25. When operating in windowing
Table 12. ALMHCFG (Read/Write)
40
ALM2CLMP1
ALM2CLMP0
ALM1CLMP1
ALM1CLMP0
BIT NAME
VGHYST1
VGHYST0
ALMCMP
ALMOPN
ALMPOL
ITHYST1
ITHYST0
INTEMP
______________________________________________________________________________________
X
DATA BIT
D15–D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
RESET
STATE
ALMHCFG (Read/Write)
X
0
0
0
0
0
0
0
0
0
0
0
0
Don’t care.
Internal temperature conversion bit. Set to 1 to cause ALARM comparisons for
channel 2 to use the internal temperature conversion result. Set to 0 to cause ALARM
comparisons for channel 2 to use the external temperature conversion result.
ALARM comparator bit. Set to 1 to configure the ALARM output in comparator mode.
Set to 0 to configure the ALARM output in interrupt mode.
GATE voltage hysteresis bits. The VGHYST_ bits control the built-in hysteresis level
when using the ALARM function in windowing mode for GATE voltage
measurements. The same value is used for the GATE voltage ALARM measurements
in both channels.
Sense voltage/temperature hysteresis bits. The ITHYST_ bits control the built-in
hysteresis level when using the ALARM function in windowing mode for sense
voltage and temperature measurements. The same value is used for the sense
voltage and temperature ALARM measurements in both channels.
Channel 2 ALARM clamp bits.
Channel 1 ALARM clamp bits.
ALARM polarity bit. Set to 1 to force the ALARM output to be active-low. Set to 0 to
force the ALARM output to be active-high.
ALARM open-drain/push-pull output bit. Set to 1 to configure the ALARM output as
open-drain. An external pullup or pulldown resistor is required. Multiple ALARM
outputs can be wired together onto a single line in open-drain mode. Set to 0 to
configure the ALARM output as a push-pull output (no external resistor required).
mode, set the ITHYST1/0 bits, D7 and D6, to control the
sense voltage and temperature ALARM hysteresis
level. This hysteresis level applies to both channel 1
and channel 2. See Table 12b.
Set the ALM2CLMP1/0 bits, D5 and D4, to control
whether or not the GATE2 output is clamped to the
external voltage at ACLAMP2. See Table 12c. Set the
ALM1CLMP1/0 bits, D3 and D2, to control whether or
not the GATE1 output is clamped to the external volt-
age at ACLAMP1. See Table 12c and the Automatic
GATE Clamping section. Set the ALMPOL bit, D1, to 1
make the ALARM output active-low. Set ALMPOL to 0
to make the ALARM output active-high. Set the
ALMOPN bit, D0, to 1 to make the ALARM output an
open-drain output. Set ALMOPN to 0 to force the
ALARM output to be push-pull.
FUNCTION