AD7569/AD7669–SPECIFICATIONS
(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.)
DAC SPECIFICATIONS1
AD7569
J, A Versions3 AD7569
AD7669
K, B
AD7569
AD7569
Parameter
J Version
Versions
S Version
T Version Units
Conditions/Comments
STATIC PERFORMANCE
Resolution4
8
8
±2
±1/2
±3/4
8
8
±3
±1/2
±3/4
Bits
Total Unadjusted Error5
Relative Accuracy5
Differential Nonlinearity5
Unipolar Offset Error
@ +25°C
±2
±1
±1
±3
±1
±1
LSB typ
LSB max
LSB max
Guaranteed Monotonic
DAC data is all 0s; VSS = 0 V
Typical tempco is 10 µV/°C for +1.25 V range
±2
±2.5
±1.5
±2
±2
±2.5
±1.5
±2
LSB max
LSB max
T
MIN to TMAX
Bipolar Zero Offset Error
DAC data is all 0s; VSS = –5 V
@ +25°C
±2
±2.5
±1 5
±2
±2
±2.5
±1.5
±2
LSB max
LSB max
Typical tempco is 20 µV/°C for ±1.25 V range
T
MIN to TMAX
Full-Scale Error6 (AD7569 Only)
VDD = 5 V
VDD = 5 V
@ +25°C
±2
±3
±1
±2
±2
±4
±1
±3
LSB max
LSB max
T
MIN to TMAX
Full-Scale Error6 (AD7669 Only)
@ +25°C
±3
±4.5
LSB max
LSB max
T
MIN to TMAX
DACA/DACB Full-Scale Error Match6
(AD7669 Only)
±2.5
0.5
0.5
LSB max
LSB max
LSB max
LSB max
VDD = 5 V
∆Full Scale/∆VDD, TA = +25°C
∆Full Scale/∆VSS, TA = +25°C
Load Regulation at Full Scale
0.5
0.5
0.2
0.5
0.5
0.2
0.5
0.5
0.2
VOUT = 2.5 V; ∆VDD = ±5%
VOUT = –2.5 V; ∆VSS = ±5%
RL = 2 kΩ to °/C
0.2
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio5 (SNR)
44
48
55
46
48
55
44
48
55
46
48
55
dB min
dB max
dB typ
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
Total Harmonic Distortion5 (THD)
Intermodulation Distortion5 (IMD)
ANALOG OUTPUT
Output Voltage Ranges
Unipolar
0 to +1.25/2.5
±1.25/±2.5
Volts
Volts
VDD = +5 V, VSS = 0 V
VDD = +5 V, VSS = –5 V
Bipolar
LOGIC INPUTS
CS, X/B,WR, RANGE, RESET, DB0–DB7
Input Low Voltage, VINL
Input High Voltage, VINH
Input Leakage Current
Input Capacitance7
0.8
2.4
10
0.8
2.4
10
0.8
2.4
10
0.8
2.4
10
V max
V min
µA max
pF max
VIN = 0 to VDD
10
10
10
10
DB0–DB7
Input Coding (Single Supply)
Input Coding (Dual Supply)
Binary
2s Complement
AC CHARACTERlSTICS7
Voltage Output Settling Time
Positive Full-Scale Change
Settling time to within ±1/2 LSB of final value
Typically 1 µs
2
2
2
2
µs max
Negative Full-Scale Change (Single Supply)
Negative Full-Scale Change (Dual Supply)
Digital-to-Analog Glitch Impulse5
Digital Feedthrough5
4
2
15
1
60
1
4
2
15
1
60
4
2
15
1
60
4
2
15
1
60
µs max
µs max
Typically 2 µs
Typically 1 µs
nV secs typ
nV secs typ
dB typ
nV secs typ
dB max
VIN to VOUT Isolation
VIN = ±2.5 V, 50 kHz Sine Wave
DAC to DAC Crosstalk5 (AD7669 Only)
DACA to DACB Isolation5 (AD7669 Only)
–70
POWER REQUIREMENTS
V
DD Range
4.75/5.25
4.75/5.25
4.75/5.25
4.75/5.25
V min/V max For Specified Performance
VSS Range (Dual Supplies)
–4.75/–5.25
–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.
IDD
VOUT = VIN = 2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V
(AD7569)
(AD7669)
SS (Dual Supplies)
(AD7569)
13
18
13
4
13
4
13
4
mA max
mA max
Output unloaded
Outputs unloaded
VOUT = VIN = –2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V
Output unloaded
Outputs unloaded
I
4
6
mA max
mA max
(AD7669)
DAC/ADC MATCHING
Gain Matching6
@ +25°C
VIN to VOUT match with VIN = ±2.5 V,
20 kHz sine wave
1
1
1
1
1
1
1
1
% typ
% typ
TMIN to TMAX
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
ADI [ ADI ]
