ADC12D1000RF_15 Datasheet, PDF (16/84 Pages) Texas Instruments – 12-Bit, 3.2-GSPS and 2-GSPS RF-Sampling ADC

ADC12D1000RF, ADC12D1600RF
SNAS519H – JULY 2011 – REVISED AUGUST 2015
www.ti.com
4.5 Electrical Characteristics: Static Converter
Unless otherwise specified, the following apply after calibration for V_A = V_DR = V_TC = V_E = 1.9 V; I- and Q-channels, AC-
coupled, unused channel terminated to AC ground, FSR Pin = High; C_L = 10 pF; Differential, AC-coupled Sine Wave
Sampling Clock, f_CLK = 1600/1000 MHz at 0.5 V_P-P with 50% duty cycle (as specified); V_BG = Floating; Non-Extended Control
Mode; Rext = Rtrim = 3300 Ω ± 0.1%; Analog Signal Source Impedance = 100-Ω Differential; Non-Demux Non-DES Mode;
Duty Cycle Stabilizer on. All other limits T_A = 25°C, unless otherwise noted.^(1)(2)(3)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX UNIT
INL
DNL
V_OFF
V_OFF_ADJ
PFSE
NFSE
Resolution with No Missing Codes
Integral Non-Linearity (Best fit)
Differential Non-Linearity
Offset Error
Input Offset Adjustment Range
Positive Full-Scale Error
Negative Full-Scale Error
T_A = T_MIN to T_MAX
1 MHz DC-coupled over-ranged sine wave,
T_A = 25°C
1 MHz DC-coupled over-ranged sine wave,
T_A = T_MIN to T_MAX
Extended Control Mode
See ⁽⁴⁾
See ⁽⁴⁾
12
bits
±2.5 ±7.25 LSB
±0.4 ±0.96 LSB
5
LSB
±45
mV
±25 mV
±25 mV
Out-of-Range Output Code⁽⁵⁾
(V_IN+) − (V_IN−) > + Full Scale,
T_A = T_MIN to T_MAX
(V_IN+) − (V_IN−) < − Full Scale,
T_A = T_MIN to T_MAX
4095
0
(1) The analog inputs, labeled "I/O", are protected as shown below. Input voltage magnitudes beyond the Absolute Maximum Ratings may
damage this device.
V_A
I/O
TO INTERNAL
CIRCUITRY
GND
(2) To ensure accuracy, it is required that V_A, V_TC, V_E and V_DR be well-bypassed. Each supply pin must be decoupled with separate bypass
capacitors.
(3) Typical figures are at T_A = 25°C, and represent most likely parametric norms. Test limits are specified to TI's AOQL (Average Outgoing
Quality Level).
(4) Calculation of Full-Scale Error for this device assumes that the actual reference voltage is exactly its nominal value. Full-Scale Error for
this device, therefore, is a combination of Full-Scale Error and Reference Voltage Error. See Figure 4-8. For relationship between Gain
Error and Full-Scale Error, see Specification Definitions for Gain Error.
(5) This parameter is specified by design and is not tested in production.
16
Specifications
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