LINEAR TECHNOLOGY LT1789-1, LT1789-10 Technical data

LT1789-1/LT1789-10

Micropower,

Single Supply Rail-to-Rail

Output Instrumentation Amplifi ers

FEATURES

n

Micropower: 95μA Supply Current Max

n

Low Input Offset Voltage: 100μV Max

n

Low Input Offset Voltage Drift: 0.5μV/°C Max

n

Single Gain Set Resistor:

G = 1 to 1000 (LT1789-1)
G = 10 to 1000 (LT1789-10)

n

Inputs Common Mode to V

n

Wide Supply Range: 2.2V to 36V Total Supply

n

CMRR at G = 10: 96dB Min

n

Gain Error: G = 10, 0.25% Max

n

Gain Nonlinearity: G = 10, 40ppm Max

n

Input Bias Current: 40nA Max

n

PSRR at G = 10: 100dB Min

n

1kHz Voltage Noise: 48nV/√Hz

n

0.1Hz to 10Hz Noise: 1.5μV

–

P-P

APPLICATIONS

n

Portable Instrumentation

n

Bridge Amplifi ers

n

Strain Gauge Amplifi ers

n

Thermocouple Amplifi ers

n

Differential to Single-Ended Converters

n

Medical Instrumentation

DESCRIPTION

The LT®1789-1/LT1789-10 are micropower, precision
instrumentation amplifi ers that are optimized for single
supply operation from 2.2V to 36V. The quiescent current
is 95μA max, the inputs common mode to ground and the
output swings within 110mV of ground. The gain is set
with a single external resistor for a gain range of 1 to 1000
for the LT1789-1 and 10 to 1000 for the LT1789-10.

The high accuracy of the LT1789-1 (40ppm maximum non­linearity and 0.25% max gain error) is unmatched by other
micropower instrumentation amplifi ers. The LT1789-10
maximizes both the input common mode range and dynamic
output range when an amplifi cation of 10 or greater is required,
allowing precise signal processing where other instrumenta­tion amplifi ers fail to operate. The LT1789-1/LT1789-10 are
laser trimmed for very low input offset voltage, low input
offset voltage drift, high CMRR and high PSRR. The output
can handle capacitive loads up to 400pF (LT1789-1), 1000pF
(LT1789-10) in any gain confi guration while the inputs are
ESD protected up to 10kV (human body).

The LT1789-1/LT1789-10 are offered in the 8-pin SO
package, requiring signifi cantly less PC board area than
discrete multi op amp and resistor designs.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.

TYPICAL APPLICATION

90.9k

V

IN

VS = 3.3V TO 32V

V

IN

=

I

LOAD

R

• 10

SENSE

= 1A PER VOLT AS SHOWN

RISE TIME ≈ 250μs, 10% TO 90%,
1A TO 2A OUTPUT STEP INTO 0.25Ω LOAD

0.5A to 4A Voltage Controlled Current Source

C1

4700pF

V

R1

R2

10k

S

–

7

2

4

R4

10k

C2
3300pF

6

5

LT1636

+

3

C3

0.1μF
R3

100Ω

V

S

7

6

LT1789-1

REF

5

4

120Ω

8k

3

+

8

1

–

2

V

S

TIP127*

* ENSURE ADEQUATE POWER
DISSIPATION CAPABILITY AT
HIGHER VOLTAGES,

3

CURRENTS AND DUTY CYCLES

1

R

*

SENSE

0.1Ω

I

LOAD

2

4

R

*

LOAD

1789 TA01

1789fb

1

LT1789-1/LT1789-10

PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS

(Note 1)

Supply Voltage (V+ to V–)..........................................36V

Input Differential Voltage...........................................36V

Input Current (Note 3) ..........................................±20mA

Output Short-Circuit Duration .......................... Indefi nite

Operating Temperature Range.................. –40°C to 85°C

Specifi ed Temperature Range (Note 4)

LT1789C-1, LT1789C-10 ......................–40°C to 85°C

LT1789I-1, LT1789I-10 ....................... –40°C to 85°C

R

–IN

+IN

–V

TOP VIEW

1

G

2

3

4

S

S8 PACKAGE

8-LEAD PLASTIC SO

T

= 150°C, θJA = 190°C/W

JMAX

R

8

G

+V

7

S

OUT

6

REF

5

Storage Temperature Range ................... –65°C to 150°C

Lead Temperature (Soldering, 10 sec) ..................300°C

ORDER INFORMATION

LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE

LT1789CS8-1#PBF LT1789CS8-1#TRPBF 17891 8-Lead Plastic SO –40°C to 85°C
LT1789IS8-1#PBF LT1789IS8-1#TRPBF 1789I1 8-Lead Plastic SO –40°C to 85°C
LT1789CS8-10#PBF LT1789CS8-10#TRPBF 178910 8-Lead Plastic SO –40°C to 85°C
LT1789IS8-10#PBF LT1789IS8-10#TRPBF 789I10 8-Lead Plastic SO –40°C to 85°C

LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE

LT1789CS8-1 LT1789CS8-1#TR 17891 8-Lead Plastic SO –40°C to 85°C
LT1789IS8-1 LT1789IS8-1#TR 1789I1 8-Lead Plastic SO –40°C to 85°C
LT1789CS8-10 LT1789CS8-10#TR 178910 8-Lead Plastic SO –40°C to 85°C
LT1789IS8-10 LT1789IS8-10#TR 789I10 8-Lead Plastic SO –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/

3V AND 5V ELECTRICAL CHARACTERISTICS

VS = 3V, 0V; VS = 5V, 0V; RL = 20k, VCM = V
supply, TA = 25°C, unless otherwise noted.

LT1789-1 LT1789-10

SYMBOL PARAMETER CONDITIONS

G Gain Range LT1789-1, G = 1 + (200k/R

Gain Error (Note 6) G = 1, V

Gain Nonlinearity (Note 6) G = 1, V

LT1789-10, G = 10 • [1+ (200k/R

= 0.1V to (+VS) – 1V 0.02 0.20 %

O

LT1789-1, V
LT1789-10, V
G = 10 (Note 2)
G = 100 (Note 2)
G = 1000 (Note 2)

LT1789-1, V
LT1789-10, V
(Note 8)
G = 10
G = 100
G = 1000

= 0.1V to (+VS) – 0.3V

O

= 0.2V to (+VS) – 0.3V

O

= 0.1V to (+VS) – 1V 35 100 ppm

O

= 0.1V to (+VS) – 0.3V

O

= 0.2V to 4.7V, VS = 5V

O

)

G

)]

G

1 1000

0.06

0.06

0.13

12
18
90

0.25

0.27

40
75

10 1000

0.01

0.09

0.16

15
20

100

2

REF

0.25

0.30

100
100

= half

UNITSMIN TYP MAX MIN TYP MAX

%
%
%

ppm
ppm
ppm

1789fb

LT1789-1/LT1789-10

3V AND 5V ELECTRICAL CHARACTERISTICS

VS = 3V, 0V; VS = 5V, 0V; RL = 20k, VCM = V
supply, T

SYMBOL PARAMETER CONDITIONS

V

OST

V

OSI

V

OSO

I

OS

I

B

e

n

Total RTI Noise = √e

e

ni

e

no

i

n

R

IN

C

IN

V

CM

CMRR Common Mode Rejection Ratio 1k Source Imbalance (Note 6)

PSRR Power Supply Rejection Ratio V

I

S

V

OL

V

OH

I

SC

BW Bandwidth G = 1

SR Slew Rate G = 10, V

R

REFIN

I

REFIN

AV

= 25°C, unless otherwise noted.

A

LT1789-1 LT1789-10

Total Input Referred Offset Voltage V

OST

= V

OSI

+ V

OSO

/G
Input Offset Voltage G = 1000 15 100 20 160 μV
Output Offset Voltage G = 1 (LT1789-1), G =10 (LT1789-10) 150 750 650 3000 μV
Input Offset Current (Note 6) 0.2 4 0.2 4 nA
Input Bias Current (Note 6) 19 40 19 40 nA
Input Noise Voltage,

RTI (Referred to Input)

2

+ (eno/G)

ni

2

G = 1, fO = 0.1Hz to 10Hz
G = 10
G = 100, 1000

5.0

1.5

1.0

4.6

1.1

Input Noise Voltage Density, RTI fO = 1kHz (Note 7) 48 85 52 90 nV/√Hz
Output Noise Voltage Density, RTI fO = 1kHz (Note 3) 330 270 nV/√Hz
Input Noise Current fO = 0.1Hz to 10Hz 16 16 pA
Input Noise Current Density fO = 1kHz 62 62 fA/√Hz
Input Resistance VIN = 0V to (+VS) – 1V (Note 6) 0.75 1.6 0.75 1.6 GΩ
Input Capacitance Differential

Common Mode

1.6

1.6

1.6

1.6

Input Voltage Range 0 +VS – 1 0 +VS – 1.2 V

LT1789-1,VCM = 0V to (+VS) – 1V
LT1789-10, V

G = 1
G = 10
G = 100
G = 1000

= 2.5V to 12.5V, VCM = V

S

G = 1
G = 10
G = 100
G = 1000

= 0V to (+VS) – 1.2V

CM

REF

= 1V

79

96
100
100

90
100
102
102

88
106
114
114

100
113
116
116

88
98
98

94
102
102

105
113
113

109
120
120

Minimum Supply Voltage 2.2 2.5 2.2 2.5 V
Supply Current (Note 7) 67 95 67 95 μA
Output Voltage Swing LOW (Note 7) 54 100 62 110 mV
Output Voltage Swing HIGH (Note 7) +VS – 0.3 +VS – 0.19 +VS – 0.3 +VS – 0.19 V
Short-Circuit Current Short to GND

Short to +V

S

2.2

8.5

2.2

8.5

60
G = 10
G = 100
G = 1000

30

3

0.2

= 0.5V to 4.5V 0.023 0.062 V/μs

OUT

25
12

1.5

Settling Time to 0.01% 4V Step 240 190 μs
Reference Input Resistance 220 220 kΩ
Reference Input Current V
Reference Gain to Output 1 ±0.0001 1 ±0.0001

REF

= 0V 2.7 2.7 μA

REF

REF

= half

UNITSMIN TYP MAX MIN TYP MAX

μV
μV
μV

P-P
P-P
P-P

P-P

pF
pF

dB
dB
dB
dB

dB
dB
dB
dB

mA
mA

kHz
kHz
kHz
kHz

1789fb

3

LT1789-1/LT1789-10

ELECTRICAL CHARACTERISTICS

The l denotes the specifi cations which apply over the temperature range of
0°C ≤ T

≤ 70°C. VS = 3V, 0V; VS = 5V, 0V; RL = 20k, V

A

SYMBOL PARAMETER CONDITIONS

Gain Error (Note 6) G = 1, V

O

= 0.3V to (+VS) – 0.5V

V

O

G = 10 (Note 2)

G = 100 (Note 2)

Gain Nonlinearity (Note 6) G = 1, V

O

LT1789-1, V
LT1789-10, V
(Note 8)
G = 10
G = 100

G/T Gain vs Temperature G < 1000 (Notes 2, 3)

V

V

V

V

V

V

V

I

OS

I

OS

I

B

I

B

V

OST

OSI

OSIH

OSO

OSOH

OSI

OSO

CM

Total Input Referred Offset Voltage V

Input Offset Voltage G = 1000

Input Offset Voltage Hysteresis (Notes 3, 5)

Output Offset Voltage G = 1 (LT1789-1), G = 10 (LT1789-10)

Output Offset Voltage Hysteresis (Notes 3, 5)

/T Input Offset Voltage Drift (RTI) (Note 3)

/T Output Offset Voltage Drift (Note 3)

Input Offset Current (Note 6)

/T Input Offset Current Drift

Input Bias Current (Note 6)

/T Input Bias Current Drift

Input Voltage Range

OST

= V

CMRR Common Mode Rejection Ratio 1k Source Imbalance (Note 6)

LT1789-1, VCM = 0.2V to (+VS) – 1V
LT1789-10, V
G = 1
G = 10
G = 100, 1000

V

PSRR Power Supply Rejection Ratio

= 2.5V to 12.5V, VCM = V

S

G = 1

G = 10
G = 100, 1000

Minimum Supply Voltage

I

S

V

OL

V

OH

Supply Current

Output Voltage Swing LOW (Note 7)

Output Voltage Swing HIGH (Note 7)

(Note 7)

= half supply, unless otherwise noted. (Note 4)

REF

LT1789-1 LT1789-10

= 0.3V to (+VS) – 1V

= 0.3V to (+VS) – 1V

= 0.3V to (+VS) – 0.5V

O

= 0.3V to 4.7V, VS = 5V

O

+ V

OSI

/G

OSO

= 0.2V to (+VS) – 1.5V

CM

REF

= 1V

l

l
l

l

l
l

l

l

l

l

l

l

l

l

l

l

l

l

0.2 (+VS) – 1 0.2 (+VS) – 1.5 V

l

77

l

94

l

98

l

88

l

98

l

100

l

l

l

l

+VS – 0.38 +VS – 0.38 V

UNITSMIN TYP MAX MIN TYP MAX

0.25 %

0.53

0.55

0.30

0.53

%
%

185 ppm

90

120

130
130

ppm
ppm

5 50 5 50 ppm/°C

150

190

µV

3 10 3 10 µV

950 3700 µV

50 100 300 900 µV

0.2 0.5 0.3 0.7 µV/°C

1.5

4 7 20 µV/°C

4.5 4.5 nA

3 3 pA/°C

45 45 nA

50 50

pA/°C

dB
85
96

dB

dB

dB
92

100

dB

dB

2.5 2.5 V

115 115 µA

110

120 mV

4

1789fb

LT1789-1/LT1789-10

ELECTRICAL CHARACTERISTICS

The l denotes the specifi cations which apply over the temperature range of
–40°C ≤ T

≤ 85°C. VS = 3V, 0V; VS = 5V, 0V; RL = 20k, V

A

SYMBOL PARAMETER CONDITIONS

Gain Error (Note 6) G = 1, V

V

= 0.3V to (+VS) – 1V

O

= 0.3V to (+VS) – 0.5V

O

G = 10 (Note 2)

G = 100 (Note 2)

Gain Nonlinearity (Note 6) G = 1, V

= 0.3V to (+VS) – 1V

O

LT1789-1, V
LT1789-10, V
(Note 8)
G = 10
G = 100

G/T Gain vs Temperature G < 1000 (Notes 2, 3)

V

V

V

V

V

V

V

I

OS

I

OS

I

B

I

B

V

OST

OSI

OSIH

OSO

OSOH

OSI

OSO

CM

Total Input Referred Offset Voltage V

Input Offset Voltage G = 1000

Input Offset Voltage Hysteresis (Notes 3, 5)

Output Offset Voltage G = 1 (LT1789-1), G = 10 (LT1789-10)

Output Offset Voltage Hysteresis (Notes 3, 5)

/T Input Offset Voltage Drift (RTI) (Note 3)

/T Output Offset Voltage Drift (Note 3)

Input Offset Current (Note 6)

/T Input Offset Current Drift

Input Bias Current (Note 6)

/T Input Bias Current Drift

Input Voltage Range

OST

= V

OSI

CMRR Common Mode Rejection Ratio 1k Source Imbalance (Note 6)

LT1789-1, VCM = 0.2V to (+VS) – 1V
LT1789-10, V
G = 1
G = 10
G = 100, 1000

V

PSRR Power Supply Rejection Ratio

= 2.5V to 12.5V, VCM = V

S

G = 1

G = 10
G = 100, 1000

Minimum Supply Voltage

I

S

V

OL

V

OH

Supply Current

Output Voltage Swing LOW (Note 7)

Output Voltage Swing HIGH (Note 7)

(Note 7)

= half supply, unless otherwise noted. (Note 4)

REF

LT1789-1 LT1789-10

l

l
l

l

= 0.3V to (+VS) – 0.5V

O

= 0.3V to 4.7V, VS = 5V

O

l
l

l

+ V

/G

OSO

l

l

l

= 0.2V to (+VS) – 1.5V

CM

= 1V

REF

l

l

l

l

l

l

l

l

0.2 +VS – 1 0.2 +VS – 1.5 V

l

75

l

92

l

96

l

86

l

96

l

98

l

l

l

l

+VS – 0.40 +VS – 0.40 V

50 100 300 900 µV

0.2 0.5 0.3 0.7 µV/°C

1.5

50 50

UNITSMIN TYP MAX MIN TYP MAX

0.30 %

0.57

0.59

0.35

0.62

%
%

250 ppm

105
160

150
170

ppm
ppm

5 50 5 50 ppm/°C

175

205

µV

3 10 3 10 µV

1050 4000 µV

4 7 20 µV/°C

55nA

3 3 pA/°C

50 50 nA

pA/°C

dB

84
94

dB

dB

dB

90

98

dB

dB

2.5 2.5 V

125 125 µA

120

130 mV

1789fb

5

LT1789-1/LT1789-10

ELECTRICAL CHARACTERISTICS

= ±15V, RL = 20k, VCM = V

V

S

SYMBOL PARAMETER CONDITIONS

G Gain Range LT1789-1, G = 1 + (200k/R

Gain Error V

Gain Nonlinearity V

V

OST

V

OSI

V

OSO

I

OS

I

B

e

n

Total RTI Noise = √e

e

ni

e

no

i

n

Total Input Referred Offset Voltage V
Input Offset Voltage G = 1000 30 235 30 295 μV
Output Offset Voltage G = 1 (LT1789-1), G =10 (LT1789-10) 0.2 1 0.6 3.3 mV
Input Offset Current 0.2 4 0.2 4 nA
Input Bias Current 17 40 17 40 nA
Input Noise Voltage, RTI fO = 0.1Hz to 10Hz

2

+ (eno/G)

ni

Input Noise Voltage Density, RTI fO = 1kHz 49 90 53 95 nV/√Hz
Output Noise Voltage Density, RTI fO = 1kHz 330 270 nV/√Hz
Input Noise Current fO = 0.1Hz to 10Hz 19 19 pA
Input Noise Current Density fO = 1kHz 100 62 pA/√Hz

R

IN

C

IN

V

CM

Input Resistance 2 4.7 2 4.7 GΩ
Input Capacitance Differential

Input Voltage Range –15 –14 –15 –14 V

CMRR Common Mode Rejection Ratio 1k Source Imbalance, V

PSRR Power Supply Rejection Ratio LT1789-1 V

Minimum Supply Voltage ±1.25 ±1.50 V

I

S

V

O

I

SC

Supply Current 85 130 85 130 μA
Output Voltage Swing ±14.5 ±14.7 ±14.5 ±14.7 V
Short-Circuit Current Short to –V

= 0V, TA = 25°C, unless otherwise noted.

OUT

LT1789-10, G = 10 • [1+ (200k/R

= ±10V

O

G = 1
G = 10 (Note 2)
G = 100 (Note 2)
G = 1000 (Note 2)

= ±10V

O

G = 1
G = 10
G = 100
G = 1000

= V

+ V

OST

OSI

OSO

/G

G = 1
G = 10
G = 100, 1000

2

Common Mode

G = 1

CM

G = 10
G = 100, 1000

= ±1.25V to ±16V

LT1789-10 V

S

= ±1.50V to ±16V

S

G = 1
G = 10
G = 100, 1000

Short to +V

S
S

)

G

)]

G

= –15V to 14V

LT1789-1 LT1789-10

1 1000

10 1000

0.01

0.04

0.04

0.07

20

0.10

0.15

0.15

0.20

8
1
6

20
10
20

100

5.0

1.5

1.0

20
17

80
98

102

94
104
102

89
108
117

107
118
121

93

102

100
106

2.2

8.5

0.01

0.03

0.03

5
5

25

4.6

1.1

20
17

108
123

115
123

2.2

8.5

0.15

0.20

0.25

40
40

160

UNITSMIN TYP MAX MIN TYP MAX

ppm
ppm
ppm
ppm

μV
μV
μV

%
%
%
%

P-P
P-P
P-P

P-P

pF
pF

dB
dB
dB

dB
dB
dB

mA
mA

6

1789fb

ELECTRICAL CHARACTERISTICS

= ±15V, RL = 20k, VCM = V

V

S

= 0V, TA = 25°C, unless otherwise noted.

OUT

SYMBOL PARAMETER CONDITIONS

BW Bandwidth G = 1

G = 10
G = 100
G = 1000

SR Slew Rate V

= ±10V 0.012 0.026 0.028 0.066 V/μs

OUT

Settling Time to 0.01% 10V Step 460 270 μs

R

REFIN

I

REFIN

AV

Reference Input Resistance 220 220 kΩ
Reference Input Current V
Reference Gain to Output 1 ±0.0001 1 ±0.0001

REF

= 0V 2.7 2.7 μA

REF

LT1789-1/LT1789-10

LT1789-1 LT1789-10

60

30

3

0.2

25
12

1.5

UNITSMIN TYP MAX MIN TYP MAX

kHz
kHz
kHz
kHz

The l denotes the specifi cations which apply over the temperature range of 0°C ≤ TA ≤ 70°C. VS = ±15V, RL = 20k, VCM = V
unless otherwise noted. (Note 4)

LT1789-1 LT1789-10

SYMBOL PARAMETER CONDITIONS

Gain Error V

Gain Nonlinearity V

G/T Gain vs Temperature G < 1000 (Notes 2, 3)

V

V

V

V

V

V

V

I

OS

I

OS

I

B

I

B

V

OST

OSI

OSIH

OSO

OSOH

OSI

OSO

CM

Total Input Referred Offset Voltage V

Input Offset Voltage G = 1000

Input Offset Voltage Hysteresis (Notes 3, 5)

Output Offset Voltage G = 1

Output Offset Voltage Hysteresis (Notes 3, 5)

/T Input Offset Voltage Drift (RTI) (Note 3)

/T Output Offset Voltage Drift (Note 3)

Input Offset Current

/T Input Offset Current Drift

Input Bias Current

/T Input Bias Current Drift

Input Voltage Range G = 1, Other Input Grounded

CMRR Common Mode Rejection Ratio

= ±10V

O

G = 1
G = 10 (Note 2)
G = 100 (Note 2)
G = 1000 (Note 2)

= ±10V

O

G = 1
G = 10
G = 100
G = 1000

= V

+ V

OST

OSI

OSO

/G

1k Source Imbalance,
V

= –14.8V to 14V

CM

G = 1
G = 10
G = 100, 1000

l
l
l
l

l
l
l
l

l

l

l

l

l

l

l

l

l

l

l

l

–14.8 14 –14.8 14 V

78

l

96

l

100

l

0.15

0.38

0.38

0.43

25
15
25

120

5 50 5 50 ppm/°C

285

8 30 8 30 µV

1.2 4 mV

50 120 400 1000 µV

0.2 0.7 0.3 0.8 µV/°C

1.5

5 8 22 µV/°C

4.5 4.5 nA

2 2 pA/°C

45 45 nA

35 35

91

100

REF

0.20

0.43

0.48

45
45

180

325

= 0V,

UNITSMIN TYP MAX MIN TYP MAX

%
%
%
%

ppm
ppm
ppm
ppm

µV

pA/°C

dB
dB
dB

1789fb

7

LT1789-1/LT1789-10

ELECTRICAL CHARACTERISTICS

The l denotes the specifi cations which apply over the temperature range of
0°C ≤ T

≤ 70°C. VS = ±15V, RL = 20k, VCM = V

A

SYMBOL PARAMETER CONDITIONS

PSRR Power Supply Rejection Ratio

Minimum Supply Voltage

I

S

V

O

Supply Current

Output Voltage Swing

SR Slew Rate V

= 0V, unless otherwise noted. (Note 4)

REF

LT1789-1, V
LT1789-10, V

= ±1.25V to ±16V

S

= ±1.50V to ±16V

S

G = 1
G = 10
G = 100, 1000

= ±10V

OUT

LT1789-1 LT1789-10

92

l

102

l

104

l

l

l

l

±14.25 ±14.25 V

l

0.010 0.026 V/µs

±1.25 ±1.50 V

150 150 µA

98

104

UNITSMIN TYP MAX MIN TYP MAX

dB
dB
dB

The l denotes the specifi cations which apply over the temperature range of –40°C ≤ TA ≤ 85°C. VS = ±15V, RL = 20k, VCM = V
unless otherwise noted. (Note 4)

LT1789-1 LT1789-10

SYMBOL PARAMETER CONDITIONS

Gain Error V

Gain Nonlinearity V

G/T Gain vs Temperature G < 1000 (Notes 2, 3)

V

V

V

V

V

V

V

I

OS

OST

OSI

OSIH

OSO

OSOH

OSI

OSO

Total Input Referred Offset Voltage V

Input Offset Voltage G = 1000

Input Offset Voltage Hysteresis (Notes 3, 5)

Output Offset Voltage G = 1

Output Offset Voltage Hysteresis (Notes 3, 5)

/T Input Offset Voltage Drift (RTI) (Note 3)

/T Output Offset Voltage Drift (Note 3)

Input Offset Current

IOS/T Input Offset Current Drift

I

B

I

B

V

CM

Input Bias Current

/T Input Bias Current Drift

Input Voltage Range G = 1, Other Input Grounded

CMRR Common Mode Rejection Ratio

= ±10V

O

G = 1
G = 10 (Note 2)
G = 100 (Note 2)
G = 1000 (Note 2)

= ±10V

O

G = 1
G = 10
G = 100
G = 1000

= V

+ V

OST

OSI

OSO

/G

1k Source Imbalance,
V

= –14.8V to 14V

CM

G = 1
G = 10
G = 100, 1000

l
l
l
l

l
l
l
l

l

l

l

l

l

l

l

l

l

l

l

l

–14.8 14 –14.8 14 V

76

l

94

l

98

l

0.20

0.57

0.57

0.62

0.25

0.62

0.67

30
20
30

130

50
50

200

5 50 5 50 ppm/°C

305

340

8 30 8 30 µV

1.3 4.2 mV

50 120 400 1000 µV

0.2 0.7 0.3 0.8 µV/°C

1.5

5 8 22 µV/°C

55nA

2 2 pA/°C

50 50 nA

35 35

89
98

REF

= 0V,

UNITSMIN TYP MAX MIN TYP MAX

%
%
%
%

ppm
ppm
ppm
ppm

µV

pA/°C

dB
dB
dB

8

1789fb