6.4 Thermal Information

THERMAL METRIC(1)

PGA848

UNIT

RGT (VQFN)

16 PINS

RθJA

Junction-to-ambient thermal resistance

47.3

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

53.6

°C/W

RθJB

Junction-to-board thermal resistance

22.0

°C/W

ψJT

Junction-to-top characterization parameter

1.4

°C/W

ψJB

Junction-to-board characterization parameter

22.0

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

7.8

°C/W

(1)

For information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application note.

6.5 Electrical Characteristics

at TA = 25 °C, VS = VSOUT = ±15V, VICM = 0V, VREF = 0V, RL = 10kΩ connected to ground, and G = 1V/V (unless otherwise

noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT

VOS

Offset voltage (RTI)

G = 5 to 100

±50

±300

µV

G = 0.5, 1, 2

±100 / G

±700 / G

Offset voltage drift RTI)

TA = –40°C to +125°C

G > 1

±0.1

±1.0

µV/°C

G = 0.5, 1

±0.2

±2.0

PSRR

Power-supply rejection ratio

±4V ≤ VS ≤ ±18V, RTI

G = 0.5

108

124

dB

G = 1

114

128

G = 2

118

130

G ≥ 5

120

134

zid

Differential input impedance

100 || 1

GΩ || pF

TA = –40°C to +125°C

10 || 1

zic

Common-mode input impedance

100 || 7

VICM

Common-mode input voltage

VS = ±4.5V to ±18V, TA = –40°C to +125°C

(VS–) + 3

(VS+) – 3

V

VIN

Differential input voltage(1)

–20

+20

V

CMRR

Common-mode rejection ratio

At dc to 60Hz,

VICM = ±10V,

TA = –40°C to +125°C,

RTI

G = 0.5

69

82

dB

G = 1

75

88

G = 2

81

94

G = 5

88

100

G = 10

96

106

G = 20

102

112

G = 50

108

116

G = 100

116

124

BIAS CURRENT

IB

Input bias current

±0.5

±2

nA

TA = –40°C to +125°C

±1

±3.6

Input bias current drift

TA = –40°C to +125°C

±5

pA/°C

IOS

Input offset current

±0.5

±1

nA

TA = –40°C to +125°C

±1

±2

Input offset current drift

TA = –40°C to +125°C

±5

pA/°C

GAIN

Gain

0.5

100

V/V

GE

Gain error

G = 0.5, 1, 2

±0.005

±0.03

%

G = 5, 10, 20, 50

±0.015

±0.04

G = 100

±0.025

±0.05

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PGA848

SBOSAN4 – AUGUST 2025

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