AD7846AP datasheet(3/24 Pages) AD

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AD7846

Rev. G | Page 3 of 24

SPECIFICATIONS

VDD = +14.25 V to +15.75 V; VSS = −14.25 V to –15.75 V; VCC = +4.75 V to +5.25 V. VOUT loaded with 2 kΩ, 1000 pF to 0 V; VREF+ = +5 V;

RIN connected to 0 V. All specifications TMIN to TMAX, unless otherwise noted.

Table 1.

Parameter1

J, A Versions

K, B Versions

Unit

Test Conditions/Comments

RESOLUTION

Bits

UNIPOLAR OUTPUT

VREF− = 0 V, VOUT = 0 V to +10 V

Relative Accuracy at +25°C

±12

±4

LSB typ

1 LSB = 153 μV

TMIN to TMAX

±16

±8

LSB max

Differential Nonlinearity Error

±1

±0.5

LSB max

All grades guaranteed monotonic

Gain Error at +25°C

±12

±6

LSB typ

VOUT load = 10 MΩ

TMIN to TMAX

±16

LSB max

Offset Error at +25°C

±12

±6

LSB typ

TMIN to TMAX

±16

LSB max

Gain TC2

±1

ppm FSR/°C typ

Offset TC2

±1

ppm FSR/°C typ

BIPOLAR OUTPUT

VREF− = –5 V, VOUT = −10 V to +10 V

Relative Accuracy at +25°C

±6

±2

LSB typ

1 LSB = 305 μV

TMIN to TMAX

±8

±4

LSB max

Differential Nonlinearity Error

±1

±0.5

LSB max

All grades guaranteed monotonic

Gain Error at +25°C

±6

±4

LSB typ

VOUT load = 10 MΩ

TMIN to TMAX

±16

LSB max

Offset Error at +25°C

±6

±4

LSB typ

VOUT load = 10 MΩ

TMIN to TMAX

±16

±12

LSB max

Bipolar Zero Error at +25°C

±6

±4

LSB typ

TMIN to TMAX

±12

±8

LSB max

Gain TC2

±1

ppm FSR/°Ctyp

Offset TC2

±1

ppm FSR/°Ctyp

Bipolar Zero TC2

±1

ppm FSR/°Ctyp

REFERENCE INPUT

Input Resistance

kΩ min

Resistance from VREF+ to VREF−

kΩ max

Typically 30 kΩ

VREF+ Range

VSS + 6 to

V min to

VDD − 6

V max

VREF− Range

VSS + 6 to

V min to

VDD − 6

V max

OUTPUT CHARACTERISTICS

Output Voltage Swing

VSS + 4 to

V max

VDD − 3

Resistive Load

kΩ min

To 0 V

Capacitive Load

1000

pF max

To 0 V

Output Resistance

0.3

Ω typ

Short Circuit Current

±25

mA typ

To 0 V or any power supply

DIGITAL INPUTS

VIH (Input High Voltage)

2.4

V min

VIL (Input Low Voltage)

0.8

V max

IIN (Input Current)

±10

μA max

CIN (Input Capacitance)2

pF max

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