AD7569AN データシートの表示（PDF） - Analog Devices

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AD7569AN

-0.3 to +7V; 450mW; LC2MOS complete, 8-bit analog I/O system

Analog Devices 

AD7569/AD7669–SPECIFICATIONS

DAC SPECIFICATIONS1 (VDD = +5 V ؎ 5%; VSS2 = RANGE = AGNDDAC = AGNDADC = DGND = 0 V; RL = 2 k⍀, CL = 100 pF to AGNDDAC

unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.)

Parameter

AD7569

J, A Versions3

AD7669

J Version

AD7569

K, B

Versions

AD7569 AD7569

S Version T Version Units

Conditions/Comments

STATIC PERFORMANCE

Resolution4

Total Unadjusted Error5

Relative Accuracy5

Differential Nonlinearity5

Unipolar Offset Error

@ +25°C

TMIN to TMAX

Bipolar Zero Offset Error

@ +25°C

TMIN to TMAX

Full-Scale Error6 (AD7569 Only)

@ +25°C

TMIN to TMAX

Full-Scale Error6 (AD7669 Only)

@ +25°C

TMIN to TMAX

DACA/DACB Full-Scale Error Match6

(AD7669 Only)

∆Full Scale/∆VDD, TA = +25°C

∆Full Scale/∆VSS, TA = +25°C

Load Regulation at Full Scale

8

±2

±1

±1

±2

± 2.5

±2

± 2.5

±2

±3

±3

± 4.5

± 2.5

0.5

0.5

0.2

8

±2

± 1/2

± 3/4

± 1.5

±2

±1 5

±2

±1

±2

0.5

0.5

0.2

DYNAMIC PERFORMANCE

Signal-to-Noise Ratio5 (SNR)

44

46

Total Harmonic Distortion5 (THD)

48

48

Intermodulation Distortion5 (IMD)

55

55

ANALOG OUTPUT

Output Voltage Ranges

Unipolar

Bipolar

0 to +1.25/2.5

± 1.25/±2.5

LOGIC INPUTS

CS, X/B,WR, RANGE, RESET, DB0–DB7

Input Low Voltage, VINL

Input High Voltage, VINH

Input Leakage Current

0.8

0.8

2.4

2.4

10

10

Input Capacitance7

10

10

DB0–DB7

Input Coding (Single Supply)

Input Coding (Dual Supply)

8

8

±3

±3

±1

± 1/2

±1

± 3/4

±2

± 1.5

± 2.5

±2

±2

± 1.5

± 2.5

±2

±2

±1

±4

±3

0.5

0.5

0.5

0.5

0.2

0.2

44

46

48

48

55

55

0.8

0.8

2.4

2.4

10

10

10

10

Binary

2s Complement

Bits

LSB typ

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

dB min

dB max

dB typ

Guaranteed Monotonic

DAC data is all 0s; VSS = 0 V

Typical tempco is 10 µV/°C for +1.25 V range

DAC data is all 0s; VSS = –5 V

Typical tempco is 20 µV/°C for ± 1.25 V range

VDD = 5 V

VDD = 5 V

VDD = 5 V

VOUT = 2.5 V; ∆VDD = ± 5%

VOUT = –2.5 V; ∆VSS = ± 5%

RL = 2 kΩ to °/C

VOUT = 20 kHz full-scale sine wave with fSAMPLING = 400 kHz

VOUT = 20 kHz full-scale sine wave with fSAMPLING = 400 kHz

fa = 18.4 kHz, fb = 14.5 kHz with fSAMPLING = 400 kHz

Volts

Volts

VDD = +5 V, VSS = 0 V

VDD = +5 V, VSS = –5 V

V max

V min

µA max

pF max

VIN = 0 to VDD

AC CHARACTERlSTICS7

Voltage Output Settling Time

Positive Full-Scale Change

2

Negative Full-Scale Change (Single Supply) 4

Negative Full-Scale Change (Dual Supply) 2

Digital-to-Analog Glitch Impulse5

15

Digital Feedthrough5

1

VIN to VOUT Isolation

60

DAC to DAC Crosstalk5 (AD7669 Only) 1

DACA to DACB Isolation5 (AD7669 Only) –70

Settling time to within ± 1/2 LSB of final value

2

2

2

µs max

Typically 1 µs

4

4

4

µs max

Typically 2 µs

2

2

2

µs max

Typically 1 µs

15

15

15

nV secs typ

1

1

1

nV secs typ

60

60

60

dB typ

VIN = ± 2.5 V, 50 kHz Sine Wave

nV secs typ

dB max

POWER REQUIREMENTS

VDD Range

VSS Range (Dual Supplies)

IDD

(AD7569)

(AD7669)

ISS (Dual Supplies)

(AD7569)

(AD7669)

4.75/5.25

–4.75/–5.25

13

18

4

6

4.75/5.25 4.75/5.25 4.75/5.25 V min/V max For Specified Performance

–4.75/–5.25 –4.75/–5.25 –4.75/–5.25 V min/V max Specified Performance also applies to VSS = 0 V

for unipolar ranges.

VOUT = VIN = 2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V

13

13

13

mA max

Output unloaded

mA max

Outputs unloaded

VOUT = VIN = –2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V

4

4

4

mA max

Output unloaded

mA max

Outputs unloaded

DAC/ADC MATCHING

Gain Matching6

@ +25°C

VIN to VOUT match with VIN = ± 2.5 V,

1

1

1

1

% typ

20 kHz sine wave

TMIN to TMAX

1

1

1

1

% typ

NOTES

1Specifications apply to both DACs in the AD7669. VOUT applies to both VOUTA and VOUTB of the AD7669.

2Except where noted, specifications apply for all output ranges including bipolar ranges with dual supply operation.

3Temperature ranges as follows: J, K versions; 0°C to +70°C

A, B versions; –40°C to +85°C

S, T versions; –55°C to +125°C

41 LSB = 4.88 mV for 0 V to +1.25 V output range, 9.76 mV for 0 V to +2.5 V and ± 1.25 V ranges and 19.5 mV for ± 2.5 V range.

5See Terminology.

6Includes internal voltage reference error and is calculated after offset error has been adjusted out. Ideal unipolar full-scale voltage is (FS – 1 LSB); ideal bipolar positive full-scale voltage is (FS/2 – 1 LSB)

and ideal bipolar negative full-scale voltage is –FS/2.

7Sample tested at +25°C to ensure compliance.

Specifications subject to change without notice.

–2–

REV. B

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