LM19

SNIS122E – MAY 2001 – REVISED MARCH 2013

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Electrical Characteristics

Unless otherwise noted, these specifications apply for V

+ = +2.7 V

DC. Boldface limits apply for TA = TJ = TMIN to TMAX ; all

other limits TA = TJ = 25°C; Unless otherwise noted.

Parameter

Conditions

Typical(1)

LM19C

Units

(Limit)

Limits(2)

Temperature to Voltage Error

TA = +25°C to +30°C

±2.5

°C (max)

VO = (−3.88×10

−6×T2)

TA = +130°C

±3.5

°C (max)

+ (

−1.15×10−2×T) + 1.8639V(3)

TA = +125°C

±3.5

°C (max)

TA = +100°C

±3.2

°C (max)

TA = +85°C

±3.1

°C (max)

TA = +80°C

±3.0

°C (max)

TA = 0°C

±2.9

°C (max)

TA = −30°C

±3.3

°C (min)

TA = −40°C

±3.5

°C (max)

TA = −55°C

±3.8

°C (max)

Output Voltage at 0°C

+1.8639

V

Variance from Curve

±1.0

°C

Non-Linearity(4)

−20°C ≤ TA ≤ +80°C

±0.4

%

Sensor Gain (Temperature Sensitivity

−30°C ≤ TA ≤ +100°C

−11.77

−11.0

mV/°C (min)

or Average Slope) to equation:

−12.6

mV/°C (max)

VO=−11.77 mV/°C×T+1.860V

Output Impedance

0

μA ≤ IL ≤ +16 μA

(5) (6)

160

Ω (max)

Load Regulation(7)

0

μA ≤ IL ≤ +16 μA

(5) (6)

−2.5

mV (max)

Line Regulation(8)

+2. 4 V

≤ V+ ≤ +5.0V

+3.7

mV/V (max)

+5.0 V

≤ V+ ≤ +5.5 V

+11

mV (max)

Quiescent Current

+2. 4 V

≤ V+ ≤ +5.0V

4.5

7

μA (max)

+5.0V

≤ V+ ≤ +5.5V

4.5

9

μA (max)

+2. 4 V

≤ V+ ≤ +5.0V

4.5

10

μA (max)

Change of Quiescent Current

+2. 4 V

≤ V+ ≤ +5.5V

+0.7

μA

Temperature Coefficient of Quiescent

−11

nA/°C

Current

Shutdown Current

V+

≤ +0.8 V

0.02

μA

(1)

Typicals are at TJ = TA = 25°C and represent most likely parametric norm.

(2)

Limits are ensured to AOQL (Average Outgoing Quality Level).

(3)

Accuracy is defined as the error between the measured and calculated output voltage at the specified conditions of voltage, current, and

temperature (expressed in°C).

(4)

Non-Linearity is defined as the deviation of the calculated output-voltage-versus-temperature curve from the best-fit straight line, over

the temperature range specified.

(5)

Negative currents are flowing into the LM19. Positive currents are flowing out of the LM19. Using this convention the LM19 can at most

sink

−1 μA and source +16 μA.

(6)

Load regulation or output impedance specifications apply over the supply voltage range of +2.4V to +5.5V.

(7)

Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output due to heating

effects can be computed by multiplying the internal dissipation by the thermal resistance.

(8)

Line regulation is calculated by subtracting the output voltage at the highest supply input voltage from the output voltage at the lowest

supply input voltage.

4

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