TDA8790 Datasheet, PDF (6/20 Pages) NXP Semiconductors – 8-bit, 40 Msps 2.7 to 5.5 V universal analog-to-digital converter

Philips Semiconductors
8-bit, 40 Msps 2.7 to 5.5 V universal
analog-to-digital converter
Product specification
TDA8790
CHARACTERISTICS
V_DDA = V₅ to V₆ = 3.3 V; V_DDD = V₃ to V₄ = 3.3 V; V_DDO = V₂₀ to V₁₁ = 3.3 V; V_SSA, V_SSD and V_SSO shorted together;
V_i(p-p) = 1.84 V; C_L = 20 pF; T_amb = 0 to +70 °C; typical values measured at T_amb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Supply
V_DDA
V_DDD
V_DDO
∆V_DD
I_DDA
I_DDD
I_DDO
analog supply voltage
digital supply voltage
output stages supply voltage
supply voltage difference
V_DDA − V_DDD
V_DDD − V_DDO
analog supply current
digital supply current
output stages supply current
Inputs
2.7
2.7
2.5
−0.2
−0.2
−
−
f_clk = 40 MHz; ramp input; −
C_L = 20 pF
3.3 5.5
V
3.3 5.5
V
3.3 5.5
V
−
+0.2
V
−
+2.25 V
4
6
mA
5
8
mA
1
2
mA
CLOCK INPUT CLK (REFERENCED TO V_SSD); see note 1
V_IL
LOW level input voltage
V_IH
HIGH level input voltage
V_DDD ≤ 3.6 V
I_IL
LOW level input current
V_clk = 0.3V_DDD
I_IH
HIGH level input current
V_clk = 0.7V_DDD
Z_I
input impedance
f_clk = 40 MHz
C_I
input capacitance
f_clk = 40 MHz
INPUT SLEEP (REFERENCED TO V_SSD); see Table 2
V_IL
LOW level input voltage
V_IH
HIGH level input voltage
V_DDD ≤ 3.6 V
I_IL
LOW level input current
I_IH
HIGH level input current
V_IL = 0.3V_DDD
V_IH = 0.7V_DDD
V_I (ANALOG INPUT VOLTAGE REFERENCED TO V_SSA)
I_IL
LOW level input current
V_I = V_RB
I_IH
HIGH level input current
V_I = V_RT
Z_I
input impedance
f_i = 1 MHz
C_I
input capacitance
f_i = 1 MHz
Reference voltages for the resistor ladder; see Table 1
V_RB
reference voltage BOTTOM
V_RT
reference voltage TOP
V_diff
differential reference voltage
V_RT − V_RB
I_ref
reference current
V_TOP ≤ V_DDA
0
−
0.7V_DDD −
0.6V_DDD −
−1
0
−
−
−
4
−
3
0.3V_DDD V
V_DDD
V
V_DDD
V
+1
µA
5
µA
−
kΩ
−
pF
0
−
0.7V_DDD −
0.6V_DDD −
−1
−
−
−
0.3V_DDD V
V_DDD
V
V_DDD
V
−
µA
+1
µA
−
0
−
µA
−
9
−
µA
−
20
−
kΩ
−
2
−
pF
1.1
1.2 −
V
2.7
3.3
V_DDA
V
1.5
2.1 2.7
V
−
0.95 −
mA
1996 Feb 21
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