Datasheet

LMP90077, LMP90078, LMP90079, LMP90080
www.ti.com SNAS521F –JULY 2011–REVISED MARCH 2013
Electrical Characteristics (continued)
Unless otherwise noted, the key for the condition is (VA = VIO = VREF) / ODR (SPS) / buffer / calibration / gain . Boldface
limits apply for T
MIN
≤ T
A
≤ T
MAX
; the typical values apply for T
A
= +25°C.
Symbol Parameter Conditions Min Typ Max Units
3V / 214.65 / OFF / OFF / 1 95 136 dB
Cross-talk
5V / 214.65 / OFF / OFF / 1 95 143 dB
POWER SUPPLY CHARACTERISTICS
Analog Supply
VA 2.85 3.0 5.5 V
Voltage
Digital Supply
VIO 2.7 3.3 5.5 V
Voltage
3V / 13.42 / OFF / OFF / 1, ext. CLK 400 500 µA
5V / 13.42 / OFF / OFF / 1, ext. CLK 464 555 µA
3V / 13.42 / ON / OFF / 64, ext. CLK 600 700 µA
5V / 13.42 / ON / OFF / 64, ext. CLK 690 800 µA
3V / 214.65 / ON / OFF / 64, int. CLK 1547 1700 µA
5V / 214.65 / ON / OFF / 64, int. CLK 1760 2000 µA
3V / 214.65 / OFF / OFF / 1, int. CLK 826 1000 µA
Analog Supply
IVA
Current
5V / 214.65 / OFF / OFF / 1, int. CLK 941 1100 µA
Standby, 3V , int. CLK 3 10 µA
Standby, 3V , ext. CLK 257 µA
Standby, 5V, int. CLK 5 15 µA
Standby, 3V, ext. CLK 300 µA
Power-down, 3V, int/ext CLK 2.6 5 µA
Power-down, 5V, int/ext CLK 4.6 9 µA
REFERENCE INPUT
VREFP Positive Reference VREFN + 0.5 VA V
Negative
VREFN GND VREFP - 0.5 V
Reference
Differential
VREF VREF = VREFP - VREFN 0.5 VA V
Reference
Reference
ZREF 3V / 13.42 / OFF / OFF / 1 10 MOhm
Impedance
IREF Reference Input 3V / 13.42 / ON or OFF /ON or OFF/all ±2 µA
Capacitance of the
CREFP gain = 1
(2)
6 pF
Positive Reference
Capacitance of the
CREFN Negative gain = 1
(2)
6 pF
Reference
Reference
ILREF Power-down 1 nA
Leakage Current
ANALOG INPUT
Gain = 1-8, buffer ON GND + 0.1 VA - 0.1 V
VINP Positive Input Gain = 16 - 128, buffer ON GND + 0.4 VA - 1.5 V
Gain = 1-8, buffer OFF GND VA V
Gain = 1-8, buffer ON GND + 0.1 VA - 0.1 V
VINN Negative Input Gain = 16 - 128, buffer ON GND + 0.4 VA - 1.5 V
Gain = 1-8, buffer OFF GND VA V
VIN Differential Input VIN = VINP - VINN ±VREF / PGA
Differential Input
ZIN ODR = 13.42 SPS 15.4 MOhm
Impedance
(2) This parameter is specified by design and/or characterization and is not tested in production.
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