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 & 5V / 214.65 / OFF / OFF / 1,
0.34 1.53 %
IB1/IB2 = 100 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.22 1 %
IB1/IB2 = 200 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.2 0.85 %
IB1/IB2 = 300 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.15 0.8 %
IB1/IB2 = 400 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.14 0.7 %
IB1/IB2 = 500 µA
IBMT IB1/IB2 Matching
3V & 5V / 214.65 / OFF / OFF / 1,
0.13 0.7 %
IB1/IB2 = 600 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.075 0.65 %
IB1/IB2 = 700 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.085 0.6 %
IB1/IB2 = 800 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.11 0.55 %
IB1/IB2 = 900 µA
3V & 5V / 214.65 / OFF / OFF / 1,
0.11 0.45 %
IB1/IB2 = 1000 µA
IB1/IB2 Matching VA = 3.0V & 5.0V, IB1/IB2 = 100 µA to
IBMTC 2 ppm/°C
Drfit 1000 µA
INTERNAL/EXTERNAL CLK
Internal Clock
CLKIN 893 kHz
Frequency
External Clock
CLKEXT See
(3)
1.8 3.5717 7.2 MHz
Frequency
Input Low Voltage 0 V
Input High Voltage 1 V
External Crystal
Frequency
Frequency 1.8 3.5717 7.2 MHz
Start-up time 7 ms
SCLK Serial Clock 10 MHz
Table 1. ENOB (Noise Free Resolution) vs. Sampling Rate and Gain at V
A
= V
IO
= V
REF
= 3V
Gain
ODR (SPS)
1 2 4 8 16 32 64 128
1.6775 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (15.5)
3.355 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (14.5)
6.71 16 (16) 16 (16) 16 (16) 16 (15.5) 16 (16) 16 (16) 16 (15) 16 (14.5)
13.42 16 (16) 16 (16) 16 (15.5) 16 (15) 16 (16) 16 (15.5) 16 (15) 16 (14)
26.83125 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (15.5) 16 (15)
53.6625 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (16) 16 (15) 16 (14.5)
107.325 16 (16) 16 (16) 16 (16) 16 (15.5) 16 (16) 16 (15.5) 16 (14.5) 16 (14)
214.65 16 (16) 16 (16) 16 (15.5) 16 (15) 16 (16) 16 (15) 16 (14.5) 16 (13.5)
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