Datasheet

ADS7834
4
SBAS098A
www.ti.com
SUPPLY CURRENT vs SAMPLE RATE
400100 600200 300 500
Sample Rate (kHz)
Supply Current (mA)
1.7
2.4
2.3
2.2
2.1
2.0
1.9
1.8
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
CC
= +5V, f
SAMPLE
= 500kHz, f
CLK
= 16 • f
SAMPLE
, and internal +2.5V reference, unless otherwise specified.
FULL-SCALE ERROR vs TEMPERATURE
20–40 100–20 0 40
Temperature (°C)
Delta from +25°C (LSB)
1
0
–1
–2
–3
–4
–5
–6
–7
–8
60 80
OFFSET VOLTAGE vs TEMPERATURE
–40 100–20 0 20 40
Temperature (°C)
Delta from +25°C (LSB)
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
60 80
POWER-DOWN SUPPLY CURRENT
vs TEMPERATURE
20–40 100–20 0 40
Temperature (°C)
Power-down Supply Current (µA)
390
470
440
430
420
410
400
450
460
60 80
SUPPLY CURRENT vs TEMPERATURE
20–40 100–20 0 40
Temperature (°C)
Supply Current (mA)
1.6
2.3
2.1
2.0
1.9
1.8
1.7
2.2
60 80
f
SAMPLE
= 500kHz
f
SAMPLE
= 125kHz
INTEGRAL LINEARITY and DIFFERENTIAL LINEARITY
vs SAMPLE RATE
300100 600200 400
Sample Rate (kHz)
Delta from f
SAMPLE
= 500kHz (LSB)
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.1
500
Change in Integral
Linearity (LSB)
Change in Differential
Linearity (LSB)