PGA112

,, PGA113

PGA116, PGA117

PGA112, PGA113

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

Input Offset Voltage

±25

±100

µV

±75

±325

µV

vs Temperature, –40°C to +125°C

0.35

1.2

µV/°C

vs Temperature, –40°C to +85°C

0.15

0.9

µV/°C

vs Temperature, –40°C to +125°C

0.6

1.8

µV/°C

vs Temperature, –40°C to +85°C

0.3

1.3

µV/°C

vs Power Supply

PSRR

5

20

µV/V

Over Temperature, –40°C to +125°C

5

40

µV/V

INPUT ON-CHANNEL CURRENT

Input On-Channel Current (Ch0, Ch1)

±1.5

±5

nA

Over Temperature, –40°C to +125°C

See Typical Characteristics

nA

INPUT VOLTAGE RANGE

Input Voltage Range

(1)

GND – 0.1

V

Overvoltage Input Range

No Output Phase Reversal

(2)

GND – 0.3

V

INPUT IMPEDANCE (Channel On)

(3)

Channel Input Capacitance

2

pF

Channel Switch Resistance

150

Ω

Amplifier Input Capacitance

3

pF

Amplifier Input Resistance

Input Resistance to GND

10

G

Ω

CAL1 or CAL2 Selected

100

k

Ω

GAIN SELECTIONS

Nominal Gains

Binary gains: 1, 2, 4, 8, 16, 32, 64, 128

1

128

Scope gains: 1, 2, 5, 10, 20, 50, 100, 200

1

200

DC Gain Error

G = 1

0.006

0.1

%

1 < G

≤ 32

0.1

%

G

≥ 50

0.3

%

DC Gain Drift

G = 1

0.5

ppm/°C

1 < G

≤ 32

2

ppm/°C

G

≥ 50

6

ppm/°C

CAL2 DC Gain Error

(4)

0.02

%

CAL2 DC Gain Drift

(4)

2

ppm/°C

CAL3 DC Gain Error

(4)

0.02

%

CAL3 DC Gain Drift

(4)

2

ppm/°C

INPUT IMPEDANCE (Channel Off)

(3)

Input Impedance

See Figure 1

2

pF

INPUT OFF-CHANNEL CURRENT

Input Off-Channel Current (Ch0, Ch1)

(5)

±0.05

±1

nA

Over Temperature, –40°C to +125°C

See Typical Characteristics

Channel-to-Channel Crosstalk

130

dB

(1)

Gain error is a function of the input voltage. Gain error outside of the range (GND + 85mV

(typical).

(2)

Input voltages beyond this range must be current limited to < |10mA| through the input protection diodes on each channel to prevent

permanent destruction of the device.

(3)

See Figure 1.

(4)

(5)

Maximum specification limitation limited by final test time and capability.

Copyright © 2008, Texas Instruments Incorporated

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