1B21 datasheet(3/8 Pages) AD

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1B21

Rev. C | Page 3 of 8

SPECIFICATIONS

Typical at +25°C and VS = ±15 V, unless otherwise noted.

Table 1.

Parameter

Specification

INPUT SPECIFICATIONS

Input Range

0 V to + 10 V

Full-Scale Input

+1 V min to +10 V max

Input Bias Current

±30 pA (±400 pA max)

OUTPUT SPECIFICATIONS

Current Output Range

4 mA to 20 mA, 0 mA to 20 mA

Load Compliance at VLOOP = 30 V

27 V min

Max Output Current @ Input Overload

25 mA

Output Noise, 100 Hz Bandwidth

1 μA p-p

NONLINEARITY (% of Span)

±0.02% (±0.05% max)

ISOLATION

CMV, Input to Output Continuous

1500 V rms

CMR @ 60 Hz

90 dB min

Transient Protection

IEEE-STD 472 (SWC)

ACCURACY

Warm-Up Time to Rated Performance

5 min

Total Output Error @ +25°C (Untrimmed)

Offset (VIN = 0 V)1

±100 μA

Span (VIN = +10 V)

±0.6% FSR

vs. Temperature (−25°C to +85°C)

Offset2

±300 nA/°C

Span

±50 ppm/°C

REFERENCE OUTPUT

Voltage

+6.225 V dc

Output Error

±1.0% max

Temperature Coefficient

±15 ppm/°C typ

DYNAMIC RESPONSE

Settling Time to 0.1% of FS for 10 V Step

9 ms

Small Signal Bandwidth

100 Hz

POWER SUPPLY

Input Side

Operating Voltage

±15 V ±5%

Quiescent Current

+15 V Supply

10 mA

−15 V Supply

5 mA

Power Supply Rejection

±0.01% V

Loop Side

Operating Voltage

+15 V to +30 V

Maximum Current

25 mA

ENVIRONMENTAL

Temperature Range

Rated Performance

−25°C to +85°C

Operating

−40°C to +85°C

Storage

−40°C to +85°C

Relative Humidity, Noncondensing

0 to 95% @ +60°C

CASE SIZE

0.7” × 2.1” × 0.35”

(17.8 × 53.3 × 8.9) mm

1 For 0 mA to 20 mA mode. For 4 mA to 20 mA mode, an additional 60 μA is contributed by the ±1.0% reference error on the 4 mA output.

2 For a complete discussion of the temperature effects of the offset resistor and reference, refer to the

section.

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