INDUSTRIAL VOLTAGE AMPLIFIER IC

AM401

analog microelectronics

Mars 2006

Analog Microelectronics GmbH

Phone:

+49 (0)6131/91 073 – 0

6/21

An der Fahrt 13, D – 55124 Mainz

Fax:

+49 (0)6131/91 073 – 30

Rev. 2.3

Internet: http://www.analogmicro.de

Email:

info@analogmicro.de

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Voltage Output Stage (OP1)

Adjustable Gain

GOP

1

Input Range

IR

VCC < 10V

0

VCC – 5

V

IR

VCC ≥ 10V

0

5

V

Power Supply Rejection Ratio

PSRR

80

90

dB

Offset Voltage

VOS

±0.5

±2

mV

VOS vs. Temperature

dVOS/dT

±3

±7

µV/°C

Input Bias Current

IB

5

12

nA

IB vs. Temperature

dIB/dT

3.5

10

pA/°C

Output Voltage Range

VOUT

VCC < 18V

0

VCC – 5

V

VOUT

VCC ≥ 18V

0

13

V

Output Current Limitation

ILIM

VOUT ≥ 10V

5

7

10

mA

Output Current

IOUT

0

ILIM

mA

Load Resistance

RL

2

k

Ω

Load Capacitance

CL

500

nF

Protection Functions

Protection against reverse polarity

Ground vs. VS vs. VOUT R1≥20 kΩ

35

V

Output current limitation

ILIM

VOUT ≥ 10V

10

mA

System Parameters

Nonlinearity

Ideal input

0.05

0.15

%FS

* Depending on external load resistance at output IA (RLIA ≤ 10kΩ ⇒ VOUTIA < 3mV); internal load resistance is ≈ 100kΩ

Currents flowing into the IC are negative

BOUNDARY CONDITIONS

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Sum Gain Resistors

R1 + R2

90

200

k

Ω

Sum Reference Adjustment Resistors

R3 + R4

20

200

k

Ω

Stabilization Capacitance @ VREF

C1

1.9

2.2

5.0

µF

VIA Capacitance

C2

10

100

pF

IMPORTANT CONDITION:

*The reference output always has to source 1mA.