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ELECTRICAL CHARACTERISTICS: COMPARATOR

Hysteresis=V

V

THRESHOLD

InputVoltage

0.592

0.6

a)

CMP1

Hysteresis=V

V

THRESHOLD

InputVoltage

0.608

0.6

b)

CMP2

INA203

INA204

INA205

SBOS393 – MARCH 2007

Boldface limits apply over the specified temperature range: T

At T

CMP1 OUT and CMP2 OUT to V

INA203, INA204, INA205

COMPARATOR PARAMETERS

CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

Offset Voltage

Comparator Common-Mode Voltage = Threshold Voltage

2

mV

Offset Voltage Drift, Comparator 1

±2

µV/°C

Offset Voltage Drift, Comparator 2

+5.4

µV/°C

Threshold

590

600

610

mV

Over Temperature

586

614

mV

–8

mV

8

mV

CMP1 IN+, CMP2 IN+

0.005

10

nA

vs Temperature

15

nA

INPUT IMPEDANCE

Pins 3 and 6 (14-pin packages only)

10

k

Ω

INPUT RANGE

CMP1 IN+ and CMP2 IN+

V

V

OUTPUT

Large-Signal Differential Voltage Gain

200

V/mV

High-Level Output Current

0.0001

1

µA

Low-Level Output Voltage

220

300

mV

Comparator 1

1.3

µs

Comparator 2

1.3

µs

RESET

1.1

V

Logic Input Impedance

2

M

Ω

Minimum RESET Pulse Width

1.5

µs

RESET Propagation Delay

3

µs

µF

Comparator 2 Delay

0.5

s

(1)

Hysteresis refers to the threshold (the threshold specification applies to a rising edge of a noninverting input) of a falling edge on the

noninverting input of the comparator; refer to Figure 1.

(2)

Specified by design; not production tested.

(3)

(4)

The comparator response time specified is the interval between the input step function and the instant when the output crosses 1.4V.

(5)

The CMP1 RESET input has an internal 2M

Ω (typical) pull-down. Leaving the CMP1 RESET open results in a LOW state, with

transparent comparator operation.

(6)

The Comparator 2 delay applies to both rising and falling edges of the comparator output.

Figure 1. Comparator Hysteresis

4

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